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2012年9月17日 星期一

Alcatraz - An Island's History


Alcatraz, the small island in San Francisco Bay, received its name in 1775 from the Spanish explorer Juan Manuel de Ayala. He christened the land La Isla de los Alcatraces, which translates to Island of the Pelicans. He had no interest, as it was uninhabited, barren ground with minimal vegetation and treacherous, icy currents.

Having little to offer, Alcatraz was left on its own for another 72 years. In 1847, the U.S. Army claimed the island for use as a military fortification. Within a year, U.S. Army engineers were hard at work constructing both a military fortress and the Pacific Coast's first operating lighthouse.

Once completed, the fortress of Alcatraz became a symbol of military strength. Its features included long-range iron cannons and four 36,000 pound, 15-inch Rodman guns, which were capable of sinking hostile ships as much as three miles away. While the image of Alcatraz lived up to its reputation, the only round ever shot came from one 400-pound cannon. This was aimed at an unidentified ship, which it missed. Within 20 years, the rapid modernization of weaponry rendered Army defenses on Alcatraz obsolete. Soon the Army began rethinking uses for their island.

The natural isolation made Alcatraz the ideal location for an Army penitentiary. In 1861, the island began its 102-year history of housing prisoners, first as an Army penitentiary, then as a Federal prison.

Alcatraz was the Army's debut as a prison for long-term sentences. Civil War prisoners were the first to arrive. The population remained small until 1898, when the Spanish-American war brought the prisoner count from 26 to more than 450. In 1906, a catastrophic earthquake in San Francisco forced the city to evacuate hundreds of prisoners to Alcatraz. The large influx of prisoners forced building expansion. By 1912, a large, three-story cell house had been constructed on the island's central crest. The structure had almost reached full capacity by the late 1920s.

Rising operation costs led the military to close Alcatraz in 1934. Ownership of the island was handed over to the Department of Justice.

During the late 1920s and into the 1930s, the Great Depression brought an excessive crime surge. The combination of Prohibition, massive unemployment, and desperate need fostered a new era of gangsters and organized crime. This new breed of criminals had taken over large cities. Ordinary prisons were not doing a good job of keeping them behind bars. The federal government needed an "escape proof" prison, where they could lock away the worst of these bad guys. On Alcatraz, the government found exactly that.

In April 1934, contractors began work to turn the military prison into a maximum-security Federal prison. This new and improved Alcatraz was designed to hold no more than 300 prisoners. Only those convicted of federal crimes were sent to Alcatraz. These crimes included bank robbery, kidnapping, income tax evasion, draft dodging, and murders related to these crimes. The Federal prison on Alcatraz was designed strictly as a holding pen with no rehabilitative intents.

Few prisoners were sent directly to Alcatraz when sentenced at court. Inmates found their way to the island through behavior problems and escape attempts. Getting transferred out of Alcatraz was even more difficult. Parole was not an option. Inmates first had to earn their way to a different prison through good behavior.

James A. Johnston, the first of four wardens at Alcatraz, made the rules. He insisted on one guard for every three prisoners. The average ratio in other prisons at that time was one guard for every 10-13 prisoners. The inmates had no commissary. No newspapers were allowed; their reading material was censored and extremely limited. They had no television and radio was banned until the mid 1950s. Inmates received no counseling and were not offered any classes or groups to join. Recreation was severely limited. Boredom was an ongoing and extreme problem for both the inmates and the prison guards.

Prisoners were allowed one visit per month, which first had to be approved by the warden. These visits lasted approximately 1 1/2 hours and were conducted through glass with the use of a telephone.

The most controversial of Johnston's rules was the "Silent System". Conversation of any sort between prisoners was forbidden. The prisoners were deprived of even the most basic human contact. Several inmates were reported to have gone insane due to this policy. Over the years, the silent system became too difficult to enforce. Four long years later, the policy was abandoned and never reinstated.

Alcatraz Federal Prison consisted of 336 cells in three cellblocks. The main corridor - dubbed Broadway - held 168 cells and stood three tiers high. Broadway offered little privacy for the inmates, as this area received the most foot traffic. However, cellblock D was by far the worst area in the prison.

Called the special treatment unit, this area was also referred to as isolation, segregation, and solitary. Five of the cells on the bottom tier earned the nickname "The Hole". Each cell contained a sink, a toilet, and a low-wattage light bulb strung from the ceiling. The solid steel door had a small insert that opened in order to push the prisoner's food through. Inmates were provided with thin mattresses for sleeping but those were removed during the day. No form of entertainment was provided or allowed. The prisoner was cut off from all human contact, suffering extreme boredom and isolation.

The strip cell was reserved for particularly difficult inmates. This was a dark, steel-encased cell with no bed, sink, or toilet. The door was solid steel that remained closed at all times. Prisoners were stripped naked and placed inside with no blankets or light. The "toilet" was a hole in the floor. A thin mattress was provided for sleeping hours, then taken away. This cell was a cold, foul, black void that was feared by even the most hardened criminals.

Time in "the hole" was not supposed to exceed 19 days and time in the strip cell was limited to two days. This standard, however, was not always adhered to. Reports were made of prisoners driven insane by the extreme sensory deprivation of the hole and the strip cell.

In its 29 years as a Federal prison, Alcatraz held 1,576 prisoners. During that time, 14 escape attempts were made by a total of 36 inmates. Of those, 21 were returned alive, two were returned and executed, seven were killed by gunfire, and one drowned and his body washed ashore.

Five prisoners, from two separate escape attempts, managed to get off the island. Ralph Roe and Theodore Cole disappeared in 1937 and Frank Morris and Clarence and John Anglin disappeared in 1962. Despite nationwide manhunts, none of these men were ever found and no bodies were recovered. Much controversy exists to this day as to whether any or all of these men made it out of the water alive.

Alcatraz's structure began to deteriorate. By the 1950s, the salt air had corroded the metal and concrete. Around 1961, the power plant began to fail, causing electrical blackouts. Plumbing pipes were cracked and major structural repair was required. During 1960-1961, the Bureau of Prisons spent $300,000 on renovations. An estimated $4 million more was needed.

Repairs were not the only factor in the high maintenance costs of Alcatraz. Because of its isolation, supplies, including water, had to be trucked in. This meant that even everyday expenses were much higher. The cost per prisoner was almost three times higher at Alcatraz that at other U.S. prisons.

By the time of the last escape attempt in 1962, the decision to close Alcatraz had already been made. Construction had begun on the U.S. Penitentiary at Marion, Illinois, the replacement for Alcatraz. On March 21, 1963, the last 27 prisoners were transferred from the island prison. Alcatraz officially closed in June of 1963.

Aside from a caretaker and his wife, Alcatraz remained a desolate place while various parties lobbied the government with development ideas. Nothing came of these ideas. Then, in 1969, a large group of American Indians landed on Alcatraz. A relatively unknown treaty with the U.S. government in the 19th century allowed Native Americans to claim abandoned Federal property. Using this treaty, the group claimed Alcatraz as "Indian Land".

The Indians had an elaborate plan for transforming Alcatraz, which included an educational Native American cultural center. Public support quickly grew, with high-profile advocates from show business as well as the Hell's Angels. This was both a blessing and a curse. The volume of visitors to the little island quickly grew overwhelming. Sadly, Alcatraz soon became a haven for the homeless and derelict population.

Before long, the Indians faced the same problems that stymied the prison administration; the total absence of natural resources and the enormous expenses. A series of difficulties culminated in a fire on June 1, 1970 that burned down what had been the Warden's home, the lighthouse keeper's residence, and the officers' club. The Indian community fell apart. Approximately one year later, on June 11, 1971, Federal Marshals removed the remaining occupants from Alcatraz.

In 1972, Congress created the Golden Gate National Recreation Area, which included Alcatraz. The island opened to the public in the fall of 1973. Today Alcatraz is one of the most popular National Historic Parks, with more than one million visitors landing there each year.




Darcia Helle is a published author of mystery/suspense fiction. An avid reader and writer, Darcia immerses herself in all things crime.

Go to http://www.QuietFuryBooks.com to learn more about Darcia and to read her free monthly nonfiction newsletter Guilty As Charged.





This post was made using the Auto Blogging Software from WebMagnates.org This line will not appear when posts are made after activating the software to full version.

2012年7月30日 星期一

Alcatraz - An Island's History


Alcatraz, the small island in San Francisco Bay, received its name in 1775 from the Spanish explorer Juan Manuel de Ayala. He christened the land La Isla de los Alcatraces, which translates to Island of the Pelicans. He had no interest, as it was uninhabited, barren ground with minimal vegetation and treacherous, icy currents.

Having little to offer, Alcatraz was left on its own for another 72 years. In 1847, the U.S. Army claimed the island for use as a military fortification. Within a year, U.S. Army engineers were hard at work constructing both a military fortress and the Pacific Coast's first operating lighthouse.

Once completed, the fortress of Alcatraz became a symbol of military strength. Its features included long-range iron cannons and four 36,000 pound, 15-inch Rodman guns, which were capable of sinking hostile ships as much as three miles away. While the image of Alcatraz lived up to its reputation, the only round ever shot came from one 400-pound cannon. This was aimed at an unidentified ship, which it missed. Within 20 years, the rapid modernization of weaponry rendered Army defenses on Alcatraz obsolete. Soon the Army began rethinking uses for their island.

The natural isolation made Alcatraz the ideal location for an Army penitentiary. In 1861, the island began its 102-year history of housing prisoners, first as an Army penitentiary, then as a Federal prison.

Alcatraz was the Army's debut as a prison for long-term sentences. Civil War prisoners were the first to arrive. The population remained small until 1898, when the Spanish-American war brought the prisoner count from 26 to more than 450. In 1906, a catastrophic earthquake in San Francisco forced the city to evacuate hundreds of prisoners to Alcatraz. The large influx of prisoners forced building expansion. By 1912, a large, three-story cell house had been constructed on the island's central crest. The structure had almost reached full capacity by the late 1920s.

Rising operation costs led the military to close Alcatraz in 1934. Ownership of the island was handed over to the Department of Justice.

During the late 1920s and into the 1930s, the Great Depression brought an excessive crime surge. The combination of Prohibition, massive unemployment, and desperate need fostered a new era of gangsters and organized crime. This new breed of criminals had taken over large cities. Ordinary prisons were not doing a good job of keeping them behind bars. The federal government needed an "escape proof" prison, where they could lock away the worst of these bad guys. On Alcatraz, the government found exactly that.

In April 1934, contractors began work to turn the military prison into a maximum-security Federal prison. This new and improved Alcatraz was designed to hold no more than 300 prisoners. Only those convicted of federal crimes were sent to Alcatraz. These crimes included bank robbery, kidnapping, income tax evasion, draft dodging, and murders related to these crimes. The Federal prison on Alcatraz was designed strictly as a holding pen with no rehabilitative intents.

Few prisoners were sent directly to Alcatraz when sentenced at court. Inmates found their way to the island through behavior problems and escape attempts. Getting transferred out of Alcatraz was even more difficult. Parole was not an option. Inmates first had to earn their way to a different prison through good behavior.

James A. Johnston, the first of four wardens at Alcatraz, made the rules. He insisted on one guard for every three prisoners. The average ratio in other prisons at that time was one guard for every 10-13 prisoners. The inmates had no commissary. No newspapers were allowed; their reading material was censored and extremely limited. They had no television and radio was banned until the mid 1950s. Inmates received no counseling and were not offered any classes or groups to join. Recreation was severely limited. Boredom was an ongoing and extreme problem for both the inmates and the prison guards.

Prisoners were allowed one visit per month, which first had to be approved by the warden. These visits lasted approximately 1 1/2 hours and were conducted through glass with the use of a telephone.

The most controversial of Johnston's rules was the "Silent System". Conversation of any sort between prisoners was forbidden. The prisoners were deprived of even the most basic human contact. Several inmates were reported to have gone insane due to this policy. Over the years, the silent system became too difficult to enforce. Four long years later, the policy was abandoned and never reinstated.

Alcatraz Federal Prison consisted of 336 cells in three cellblocks. The main corridor - dubbed Broadway - held 168 cells and stood three tiers high. Broadway offered little privacy for the inmates, as this area received the most foot traffic. However, cellblock D was by far the worst area in the prison.

Called the special treatment unit, this area was also referred to as isolation, segregation, and solitary. Five of the cells on the bottom tier earned the nickname "The Hole". Each cell contained a sink, a toilet, and a low-wattage light bulb strung from the ceiling. The solid steel door had a small insert that opened in order to push the prisoner's food through. Inmates were provided with thin mattresses for sleeping but those were removed during the day. No form of entertainment was provided or allowed. The prisoner was cut off from all human contact, suffering extreme boredom and isolation.

The strip cell was reserved for particularly difficult inmates. This was a dark, steel-encased cell with no bed, sink, or toilet. The door was solid steel that remained closed at all times. Prisoners were stripped naked and placed inside with no blankets or light. The "toilet" was a hole in the floor. A thin mattress was provided for sleeping hours, then taken away. This cell was a cold, foul, black void that was feared by even the most hardened criminals.

Time in "the hole" was not supposed to exceed 19 days and time in the strip cell was limited to two days. This standard, however, was not always adhered to. Reports were made of prisoners driven insane by the extreme sensory deprivation of the hole and the strip cell.

In its 29 years as a Federal prison, Alcatraz held 1,576 prisoners. During that time, 14 escape attempts were made by a total of 36 inmates. Of those, 21 were returned alive, two were returned and executed, seven were killed by gunfire, and one drowned and his body washed ashore.

Five prisoners, from two separate escape attempts, managed to get off the island. Ralph Roe and Theodore Cole disappeared in 1937 and Frank Morris and Clarence and John Anglin disappeared in 1962. Despite nationwide manhunts, none of these men were ever found and no bodies were recovered. Much controversy exists to this day as to whether any or all of these men made it out of the water alive.

Alcatraz's structure began to deteriorate. By the 1950s, the salt air had corroded the metal and concrete. Around 1961, the power plant began to fail, causing electrical blackouts. Plumbing pipes were cracked and major structural repair was required. During 1960-1961, the Bureau of Prisons spent $300,000 on renovations. An estimated $4 million more was needed.

Repairs were not the only factor in the high maintenance costs of Alcatraz. Because of its isolation, supplies, including water, had to be trucked in. This meant that even everyday expenses were much higher. The cost per prisoner was almost three times higher at Alcatraz that at other U.S. prisons.

By the time of the last escape attempt in 1962, the decision to close Alcatraz had already been made. Construction had begun on the U.S. Penitentiary at Marion, Illinois, the replacement for Alcatraz. On March 21, 1963, the last 27 prisoners were transferred from the island prison. Alcatraz officially closed in June of 1963.

Aside from a caretaker and his wife, Alcatraz remained a desolate place while various parties lobbied the government with development ideas. Nothing came of these ideas. Then, in 1969, a large group of American Indians landed on Alcatraz. A relatively unknown treaty with the U.S. government in the 19th century allowed Native Americans to claim abandoned Federal property. Using this treaty, the group claimed Alcatraz as "Indian Land".

The Indians had an elaborate plan for transforming Alcatraz, which included an educational Native American cultural center. Public support quickly grew, with high-profile advocates from show business as well as the Hell's Angels. This was both a blessing and a curse. The volume of visitors to the little island quickly grew overwhelming. Sadly, Alcatraz soon became a haven for the homeless and derelict population.

Before long, the Indians faced the same problems that stymied the prison administration; the total absence of natural resources and the enormous expenses. A series of difficulties culminated in a fire on June 1, 1970 that burned down what had been the Warden's home, the lighthouse keeper's residence, and the officers' club. The Indian community fell apart. Approximately one year later, on June 11, 1971, Federal Marshals removed the remaining occupants from Alcatraz.

In 1972, Congress created the Golden Gate National Recreation Area, which included Alcatraz. The island opened to the public in the fall of 1973. Today Alcatraz is one of the most popular National Historic Parks, with more than one million visitors landing there each year.




Darcia Helle is a published author of mystery/suspense fiction. An avid reader and writer, Darcia immerses herself in all things crime.

Go to http://www.QuietFuryBooks.com to learn more about Darcia and to read her free monthly nonfiction newsletter Guilty As Charged.





This post was made using the Auto Blogging Software from WebMagnates.org This line will not appear when posts are made after activating the software to full version.

2012年3月25日 星期日

A Waking Dream, Through History - Part 4


This is Part 4, in an on-going study of dreams. Part 3 ended with the start of discussing the four different stages. In this Part, we'll look deeper into these four stages and also how our brain processes stimuli produced from our dreams and how our body keeps from actually acting out our dreams.

REM sleep is also known as 'paradoxical sleep', because during it brain activity, adrenaline levels, pulse rate and oxygen consumption come closer to those in wakefulness, yet muscle tone relaxes and the sleeper may prove particularly difficult to arouse. It is during the REM sleep that more dreaming takes place. It seems that physiological differences between REM sleep and the other three, deeper levels of sleep are as great as those between waking and sleeping.

A number of American dream researchers have even suggested that REM sleep warrants recognition as a third basic form of human existence, seeming to confirm the ancient Hindu tradition that consciousness consists of three distinct levels: waking, dreamless sleep and dreaming.

In the 1960's researchers found that REM deprivation appears to lead to daytime irritability, fatigue, memory loss and poor concentration.

Volunteers who were systematically deprived of REM sleep by being aroused whenever they entered the eye activity phase caught up on subsequent nights by engaging in more REM sleep than usual. If a subject is faced with total sleep deprivation, because of illness or other factors, the REM state has even been known to force its way into waking consciousness. It seems that we may badly need REM sleep, and this could be associated with a psychological need to dream.

Emotions are engaged during REM, causing heart rate and breathing to become erratic at times. Gastric acid production may increase by as much as ten times, asthmatics are more prone to attacks, and there is an increased tendency to cardiac arrest. Intriguingly, however, these extreme physiological changes do not necessarily have a direct relationship with reported dream content, but may instead result from what appears to be a total arousal of parts of the nervous system. Yet however, real such sensory experiences appear to the brain, something prevents us from performing in full actions and emotions that fill our dreams. There is a general loss of muscle tone during REM sleep and the eye muscles appear to be the only ones that are physically involved in acting out dream events. It has been shown that when dreams are most vivid, certain inhibitors are produced to prevent muscles from receiving the relevant impulses from the brain, thus ensuring that we do not act on sensory stimuli experienced in the dream. It is perhaps this effective paralysis that gives rise to the dream sensations of being unable to run, of attempting in vain to scream, or of trying to walk, but being stuck in sand or water. The brain somehow prevents us from moving physically when asleep with the power and agility possessed by the dreaming mind.

Join me for Part 5- where we'll continue to study together how dreaming effects our waking life. Information from: "The Secret Language of Dreams"; By David Fontana.




http://www.bonanzle.com/inspired





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2012年1月24日 星期二

Audio-Visual Entrainment, History and Physiological Mechanisms


History

Clinical reports of flicker stimulation appear as far back as the dawn of modern medicine. It was at the turn of the 20th century when Pierre Janet, at the Salpêtrière Hospital in France, reported that when he had his patients gaze into the flickering light produced from a spinning spoked wheel in front of a kerosene lantern, it lowered their depression, tension and hysteria (34). Then, in 1934, Adrian and Matthews published their results showing that the alpha rhythm could be "driven" above and below the natural frequency with photic stimulation (1).

This discovery further propagated dozens of small physiological outcome studies on the "flicker following response" by many well respected researchers (4,5,11,20,18,22,43). However no one considered the subjective and behavioral effects of photic stimulation. Finally in 1956, W. Gray Walter published the results on thousands of test subjects comparing flicker stimulation with the subjective emotional feelings it produced (46).

Meanwhile, William Kroger accomplished other important developments in photic stimulation. Kroger was a physician investigating why radar operators were going into trances in front of their radar sets and of course, leaving the ship or plane at great risk to the enemy. He concluded that the rhythmic "blip" of the radar was "pulling" the radar operators into a trance state. These findings compelled Kroger to team up with Sydney Schneider of the Schneider Instrument Company of Ohio to construct and market the first electronic clinical photic stimulator, called the "Brainwave Synchronizer." It comprised of an intense xenon strobe light complete with a rotating dial that could be set to the frequencies of the standard four brain wave rhythms. They found the Brainwave Synchronizer had powerful hypnotic qualities and soon published a study on hypnotic induction (24). They also prompted other studies involving hypnotic induction in surgery and dentistry, and studies of general interest to the hypnosis profession (38, 31, 29).

In 1981, my wife, Nancy, and I incorporated Comptronic Devices Limited, with a focus on designing TENS units and EMG feedback devices for dental (TMJ) applications. In 1984, I designed the "Digital Audio-Visual Integration Device" (DAVID1), used for hypnotic induction and to calm anxiety in performing arts students at the University of Alberta. The "light and sound" (L&S) market at this time was in its infancy and resided primarily within the new age sector. There was little "known" research to support L&S technology, and professionals by and large showed disinterest. Due mainly to poorly designed L&S products and a lack of research, about 40 L&S companies have come and gone, most of them during the 1980s and 1990s. However, since the time of Adrian and Matthews, a considerable number of studies have verified photic and auditory "driving" of the EEG. I have since re-named this phenomenon as "audio-visual entrainment" or AVE, as any given frequency of stimulation that is reflected in brain wave activity and observable on an EEG or QEEG can be entrained. Many more studies on photic or combined audio/photic stimulation exist than pure audio stimulation studies, however audio-only stimulation studies have confirmed audio entrainment (8) and its effect on calming masseter muscle tension (30).

Physiology of Audio-Visual Entrainment

In order for entrainment to occur, a constant, repetitive stimuli of sufficient strength to "excite" the thalamus must be present. The thalamus then passes the stimuli onto the sensory-motor strip, the cortex in general and associated processing areas such as the visual and auditory cortexes. Figure 1 shows the visual pathway with the retina of both eyes becoming excited and sending pulses down the optic nerve, through the optic chiasm, and into the lateral geniculate of both thalami. From here, the visual signals are passed onto the visual and cerebral cortexes for further processing. Notice that there is very little delay from the onset of the flash to the response in the optic nerve, but a delay of approximately 100 msec occurs by the time the visual evoked potential (VEP) is elicited in the visual cortex. This delay may be why entrainment occurs best at the natural alpha frequency -- as 100 msec equates to 10 Hz.

Figure 1. The EEG Photic Stimulation Path

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

Photic entrainment begins its process as a series of overlapping evoked potentials (23). Kinney broke down a simple VEP into its various components (Figure 2) representing the passage of time for 4, 8, 12 and 20 Hz. As can be seen, much of the VEP occurs within 250 msec, correlating to four Hz. The various overlapping parts were then vector summed into the mathematical VEP and compared with the actual VEPs observed by EEG at the higher, entrained frequencies, shown in Figure 2.

Figure 2. EEG Wavelet

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

When this mathematical model was compared with the actual observed EEG of the entrained stimuli (Figure 3), a high degree of predictability was observed, demonstrating that photic entrainment is indeed a vector summation of VEPs and not a novel neuronal process.

Figure 3. EEG VEPs - Vector Addition (theoretical) Model vs Observed EEG

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

By definition, entrainment occurs when an EEG reflects the brain wave frequency duplicating that of the stimuli, be it audio, visual or tactile (41). Entrainment occurs best near one's own natural alpha frequency (43, 23). LEDs and xenon strobe lights contain much harmonic content due to the "squareness" or rapid turn-on and turn-off transitions of the stimuli and these harmonics are reflected within the EEG. Figure 4 shows a strong and pure entrainment at 12 Hz. The harmonics (small wavelets) seen in the EEG are a reflection of the actual harmonics contained within the stimulus. Square wave stimulation is associated with an increased risk of seizure (21, 37). The only way to produce entrainment without harmonics is via sine wave stimulation in which the stimuli turn on and turn off in slow, gentle transitions and do not contain harmonics. (45, 44, 35, 41).

Figure 4. EEG Showing Photic Entrainment

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

AVE at 18.5 Hz has also been shown to produce dramatic increases in EEG amplitude at the vertex (14), where it was found that:

a) eyes-closed 18.5 Hz. photic entrainment increased 18.5 Hz EEG activity by 49%.

b) eyes-open auditory entrainment produced increased 18.5 Hz. EEG activity by 27%.

c) eyes-closed auditory entrainment produced increased 18.5 Hz EEG activity by 21%.

d) eyes-closed AVE produced increased 18.5 Hz. EEG activity by 38.3%.

Entrainment primarily shows itself frontally and near the vertex (41). Figure 5 is a QEEG, or "brainmap" from the SKIL (Sterman-Kaiser Imaging Labs) database, in 1Hz bins showing the frequency distribution of AVE at 7.8 Hz. The area within the circle at 8Hz shows maximal effects of AVE in central, frontal and parietal regions (at 10uv in this case) as referenced with the oval area on the legend. It is through these effects that AVE has proven effective in treating depression, anxiety and attentional disorders. A harmonic is also present at 16 Hz. (the circled image), which is typical of semi-sine wave (part sine/part square wave) stimulation.

Figure 5. Brain Map in 1Hz Bins -- During 7.8 Hz AVE (SKIL-Eyes Closed)

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

Body/Mind Effects of Audio-Visual Entrainment

We conceptualize AVE as achieving its effects through several mechanisms at once (40). These include:

1) dissociation / hypnotic induction,

2) increased neurotransmitters,

3) possible increased dendritic growth,

4) altered cerebral blood flow, and

5) normalized EEG activity.

Dissociation

Dissociation is described as a process where feelings, memories and physical sensations are kept apart from other information that would normally be logically associated. In pathological terms, dissociation is a maladaptive disruption in integrated functioning typically associated with depersonalization, stress, identity, amnesia and depersonalization disorders (7).

On the other hand, dissociation occurs when we meditate, exercise, read a good book, take in a movie or enjoy a sporting event, because we get drawn into the present moment and dissociate from all of our daily hassles, worries, anxieties and the resulting unhealthy mental chatter. Several techniques such as dot staring and stimulus depression have been shown to induce dissociation (26). Audio dissociation analgesia using white noise has been shown to effectively increase pain threshold and pain tolerance during a dental procedure (33).

Regardless of the activity, this type of dissociation reduces our weekly stress load, whether we are aware of it or not. In essence, when we focus on something, we dissociate from other things. The saying, "a change is as good as a rest," has much more truth to it than initially meets the eye (40).

The first study on dissociation induced via entrainment involved hypnotic induction and found that photic stimulation at alpha frequencies could easily put subjects into hypnotic trances (24, 29). Figure 6 shows the results of Kroger and Schneider's study in which nearly 80% of the participants in the study were in a hypnotic trance within six minutes of photic entrainment.

Figure 6. Photic Stimulation Induction of Hypnotic Trance (24)

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

Psychologists have been looking for ways to dissociate their clients as a part of fear and phobia treatment. Inducing dissociation using AVE delivered by the DAVID1 was found to be more effective than dot staring or stimulus deprivation (26) as shown in Figure 7.

Figure 7. AVE Induced Dissociation (26)

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

Furthermore, Leonard completed a second study with people who experience dissociative anxiety (27). People with dissociative anxiety feel a need to have a sense of control in their lives and become anxious or panicky when they dissociate, be it driving home, at the office, or in a clinical setting. The Acute Dissociation Inventory (ADI) is a 35-item self-report scale (26). It assesses dissociative sensations (ADI-Dissoc) and subjective anxiety, or dissociative anxiety in response to dissociative provocation (ADI-Anx). Leonard and her colleagues clinically dissociated people who become anxious when dissociating, by using a DAVID Paradise HemistepTM alpha session. As expected, the participants' anxiety (ADI-Anx) had almost doubled by the end of the AVE session. The surprise, however, was that their heart rate actually decreased, contrary to normal anxiety reactions (Figure 8). With the ability to clinically dissociate these people, yet simultaneously calm them down somatically, AVE can be used as a desensitization tool for reducing dissociative anxiety.

Figure 8. Dissociative Anxiety and Somatic Arousal (27)

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

A dissociative mindstate or hypnotic trance may be described in terms of an altered state of consciousness (ASC) in which the subject (or an independent observer of the subject) observes a qualitative shift in the normal pattern of mental functioning (16). ASCs produced via overstimulation also occur when a person is bombarded with higher than normal levels of sensory input, usually in more than one sensory modality (19, 28, 17). Glicksohn studied photic entrainment and the ASCs produced. He monitored the EEGs of subjects during photic entrainment. They all described a wide variety of reactions to the stimulation with some reporting incredible imagery consisting of items they had seen before in their lives, intertwined with geometrical patterns while others reported no visual changes at all. At the end of the study, Glicksohn concluded that:

1) It is the increase in alpha activity created by photic driving, and not the natural alpha activity itself, that is conducive to an ASC.

2) The appearance of visual imagery is neither necessary nor all that is involved to indicate the experience of an ASC.

3) If a photic driving response is not elicited, the subject will not experience an ASC.

Glicksohn's observations support the concept that in order for AVE to occur, the stimulating frequency must have a direct impact on brain wave frequency and be observable on an EEG.

Dissociation and Restabilization

Dissociating clients with trauma histories, during the course of treatment is important. The state of mind that a person has at any given moment is made up of the brainwave activity associated with apprehension, anxiety, physical tension (proprioceptive/afferent associations), destructive thoughts, and conditioned responses relating to the colors, smells, sounds, etc. Once the mind is clear, all of these tensions, conditioned responses (bracing habits), fearful thoughts and the effects of afferance (sensory information) subside, allowing the mind and brain to relax, become more malleable and open to new healthy thoughts, post-hypnotic suggestions, brainwave activity and so on. During AVE, the EMG and electro-dermal responses fall, finger temperature increases and breathing becomes smooth and diaphragmatic. These changes reflect a return to homeostasis or restabilization, hence the term dissociation and restabilization (DAR) (40).

Figure 9 shows a typical reduction in forearm EMG and Figure 10 shows a typical increase in finger temperature. Notice that restabilization begins after about six minutes of AVE, when the user begins dissociating. Figure 11 shows normalization of breathing and heart rate variability following exposure to AVE at 7.8 Hz.

Figure 9. Forearm EMG Levels During AVE (Hawes, 2000)

*** For the complete article with figures included, please see...
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Figure 10. Peripheral Temperature Levels During AVE (Hawes, 2000)

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Neurotransmitters

There is evidence that blood serum levels of serotonin, endorphine, and melatonin rise considerably following 10 Hz., white-light AVE (42). Increases in endorphines reflect increased relaxation while increased norepinephrine along with a reduction in daytime levels of melatonin, indicate increased alertness (Figure 11).

Figure 11. Neurotransmitter Levels Following AVE (42)

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

Dendritic Growth

There is evidence that stimulating neurons with mild electrical stimulation promotes growth of dendrites and dendritic shaft synapses in the cells being stimulated (6, 25). However, studies do not yet exist on the influence of AVE on dendritic growth, although it is suspected because many people with autism, palsy, stroke and aneurysm (36) have gained significant motor and cognitive function following a treatment program of AVE.

Cerebral Blood Flow

Cerebral blood flow (CBF) is essential for good mental health and function. SPECT and FMRI imaging of CBF show that hypoperfusion of CBF is associated with many forms of mental disorders. CBF increases dramatically during AVE (12, 39). Figure 18 shows an increase of 28% in cerebral blood flow within the striate cortex, a primary visual processing area within the occiput. As an interesting note, maximal CBF occurs at 7.8 Hz, the Schumann Resonance of the earth.

Figure 12. Cerebral Blood Flow at Various AVE Repetition Rates (12)

*** For the complete article with figures included, please see...
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Following Fox and Raichle's study was a whole head PET analysis of visual entrainment at 0, 1, 2, 4, 7, and14 Hz (32). This study on 19 healthy, elderly (mean age=64 years) subjects found that regional cerebral blood flow (rCBF) was activated differentially with the:

1) left anterior cingulate showing maximal increases in rCBF at 4 Hz.

2) right anterior cingulate showing decreases in rCBF with frequency.

3) left middle temporal gyrus showing increases in rCFB at 1 Hz.

4) striate cortex showing maximal rCBF at 7 Hz.

5) lateral and inferior visual association areas showing increases in rCBF with frequency.

While there may be benefits to increasing occipital CBF, there is even greater concern regarding conditions involving hypoperfuson of CBF in frontal regions. Frontal disorders include: anxiety, depression, attentional and behavior disorders, and impaired cognitive function (2). Figure 13 shows an increase in frontal CBF recorded on Hershel Toomin's "Thinking Cap" (or "Hemoencephalogram") using infra-red light to measure perfusion of CBF. Notice that CBF at FPZ increases by 15% in 10 minutes (Toomin, personal communication).

Figure 13 Hemoencephalographic Measure of Cerebral Blood Flow During 10 Hz AVE

*** For the complete article with figures included, please see...
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Normalized EEG Activity

Figure 14 shows a fairly typical brain map in 1 Hz bins of a person with mild depression and anxiety as shown on the Skil database. Notice that alpha is slowed and approaching +2SD from the norm and that some beta frequencies (16-18 Hz) are high (>1SD) in central frontal areas.

Figure 14. Brain Map in 1 Hz Bins of Individual with Depression and Anxiety (SKIL-Eyes Open)

*** For the complete article with figures included, please see...
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Following an AVE session of 7.8 Hz., both alpha and beta activity are normalized as shown below in Figure 15.

Figure 15. Brain Map Following 7.8 Hz AVE (SKIL-EO)

*** For the complete article with figures included, please see...
http://www.mindalive.com/articleone.htm ***

Conclusion

In closing, AVE has the ability to quickly and effectively relax people out of high sympathetic activation and traumatic states of mind, bringing a return to homeostasis. AVE may be used alongside hypnotic suggestions on tape/CD or live via a microphone. At the same time however, AVE exerts a powerful influence on brain/mind stabilization and normalization. At the end of an AVE session, the user may realize that he/she has not felt so relaxed for years -- perhaps not since childhood.

Footnote:

1. For more information, address all correspondence to:

David Siever, c/o Mind Alive Inc., 9008 - 51 Avenue, Edmonton, Alberta, Canada, T6E 5X4

Toll Free: (800) 661-6463 Fax: (780) 461-9551 Web: http://www.mindalive.com

Email: info@mindalive.com

Mind Alive Inc., 9008 - 51 Avenue, Edmonton, Alberta, Canada T6E 5X4 http://www.mindalive.com

Copyright 2006. Reproduction of this material is allowed as long as it is unaltered and complete with Mind Alive contact information. Reproduction for marketing purposes is prohibited without permission from Mind Alive Inc.

http://www.mindalive.com

info@mindalive.com




Dave Siever C.E.T. travels throughout North America lecturing to dentists, medical groups, teachers and the general public at various conferences.





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2011年12月19日 星期一

Alcatraz - An Island's History


Alcatraz, the small island in San Francisco Bay, received its name in 1775 from the Spanish explorer Juan Manuel de Ayala. He christened the land La Isla de los Alcatraces, which translates to Island of the Pelicans. He had no interest, as it was uninhabited, barren ground with minimal vegetation and treacherous, icy currents.

Having little to offer, Alcatraz was left on its own for another 72 years. In 1847, the U.S. Army claimed the island for use as a military fortification. Within a year, U.S. Army engineers were hard at work constructing both a military fortress and the Pacific Coast's first operating lighthouse.

Once completed, the fortress of Alcatraz became a symbol of military strength. Its features included long-range iron cannons and four 36,000 pound, 15-inch Rodman guns, which were capable of sinking hostile ships as much as three miles away. While the image of Alcatraz lived up to its reputation, the only round ever shot came from one 400-pound cannon. This was aimed at an unidentified ship, which it missed. Within 20 years, the rapid modernization of weaponry rendered Army defenses on Alcatraz obsolete. Soon the Army began rethinking uses for their island.

The natural isolation made Alcatraz the ideal location for an Army penitentiary. In 1861, the island began its 102-year history of housing prisoners, first as an Army penitentiary, then as a Federal prison.

Alcatraz was the Army's debut as a prison for long-term sentences. Civil War prisoners were the first to arrive. The population remained small until 1898, when the Spanish-American war brought the prisoner count from 26 to more than 450. In 1906, a catastrophic earthquake in San Francisco forced the city to evacuate hundreds of prisoners to Alcatraz. The large influx of prisoners forced building expansion. By 1912, a large, three-story cell house had been constructed on the island's central crest. The structure had almost reached full capacity by the late 1920s.

Rising operation costs led the military to close Alcatraz in 1934. Ownership of the island was handed over to the Department of Justice.

During the late 1920s and into the 1930s, the Great Depression brought an excessive crime surge. The combination of Prohibition, massive unemployment, and desperate need fostered a new era of gangsters and organized crime. This new breed of criminals had taken over large cities. Ordinary prisons were not doing a good job of keeping them behind bars. The federal government needed an "escape proof" prison, where they could lock away the worst of these bad guys. On Alcatraz, the government found exactly that.

In April 1934, contractors began work to turn the military prison into a maximum-security Federal prison. This new and improved Alcatraz was designed to hold no more than 300 prisoners. Only those convicted of federal crimes were sent to Alcatraz. These crimes included bank robbery, kidnapping, income tax evasion, draft dodging, and murders related to these crimes. The Federal prison on Alcatraz was designed strictly as a holding pen with no rehabilitative intents.

Few prisoners were sent directly to Alcatraz when sentenced at court. Inmates found their way to the island through behavior problems and escape attempts. Getting transferred out of Alcatraz was even more difficult. Parole was not an option. Inmates first had to earn their way to a different prison through good behavior.

James A. Johnston, the first of four wardens at Alcatraz, made the rules. He insisted on one guard for every three prisoners. The average ratio in other prisons at that time was one guard for every 10-13 prisoners. The inmates had no commissary. No newspapers were allowed; their reading material was censored and extremely limited. They had no television and radio was banned until the mid 1950s. Inmates received no counseling and were not offered any classes or groups to join. Recreation was severely limited. Boredom was an ongoing and extreme problem for both the inmates and the prison guards.

Prisoners were allowed one visit per month, which first had to be approved by the warden. These visits lasted approximately 1 1/2 hours and were conducted through glass with the use of a telephone.

The most controversial of Johnston's rules was the "Silent System". Conversation of any sort between prisoners was forbidden. The prisoners were deprived of even the most basic human contact. Several inmates were reported to have gone insane due to this policy. Over the years, the silent system became too difficult to enforce. Four long years later, the policy was abandoned and never reinstated.

Alcatraz Federal Prison consisted of 336 cells in three cellblocks. The main corridor - dubbed Broadway - held 168 cells and stood three tiers high. Broadway offered little privacy for the inmates, as this area received the most foot traffic. However, cellblock D was by far the worst area in the prison.

Called the special treatment unit, this area was also referred to as isolation, segregation, and solitary. Five of the cells on the bottom tier earned the nickname "The Hole". Each cell contained a sink, a toilet, and a low-wattage light bulb strung from the ceiling. The solid steel door had a small insert that opened in order to push the prisoner's food through. Inmates were provided with thin mattresses for sleeping but those were removed during the day. No form of entertainment was provided or allowed. The prisoner was cut off from all human contact, suffering extreme boredom and isolation.

The strip cell was reserved for particularly difficult inmates. This was a dark, steel-encased cell with no bed, sink, or toilet. The door was solid steel that remained closed at all times. Prisoners were stripped naked and placed inside with no blankets or light. The "toilet" was a hole in the floor. A thin mattress was provided for sleeping hours, then taken away. This cell was a cold, foul, black void that was feared by even the most hardened criminals.

Time in "the hole" was not supposed to exceed 19 days and time in the strip cell was limited to two days. This standard, however, was not always adhered to. Reports were made of prisoners driven insane by the extreme sensory deprivation of the hole and the strip cell.

In its 29 years as a Federal prison, Alcatraz held 1,576 prisoners. During that time, 14 escape attempts were made by a total of 36 inmates. Of those, 21 were returned alive, two were returned and executed, seven were killed by gunfire, and one drowned and his body washed ashore.

Five prisoners, from two separate escape attempts, managed to get off the island. Ralph Roe and Theodore Cole disappeared in 1937 and Frank Morris and Clarence and John Anglin disappeared in 1962. Despite nationwide manhunts, none of these men were ever found and no bodies were recovered. Much controversy exists to this day as to whether any or all of these men made it out of the water alive.

Alcatraz's structure began to deteriorate. By the 1950s, the salt air had corroded the metal and concrete. Around 1961, the power plant began to fail, causing electrical blackouts. Plumbing pipes were cracked and major structural repair was required. During 1960-1961, the Bureau of Prisons spent $300,000 on renovations. An estimated $4 million more was needed.

Repairs were not the only factor in the high maintenance costs of Alcatraz. Because of its isolation, supplies, including water, had to be trucked in. This meant that even everyday expenses were much higher. The cost per prisoner was almost three times higher at Alcatraz that at other U.S. prisons.

By the time of the last escape attempt in 1962, the decision to close Alcatraz had already been made. Construction had begun on the U.S. Penitentiary at Marion, Illinois, the replacement for Alcatraz. On March 21, 1963, the last 27 prisoners were transferred from the island prison. Alcatraz officially closed in June of 1963.

Aside from a caretaker and his wife, Alcatraz remained a desolate place while various parties lobbied the government with development ideas. Nothing came of these ideas. Then, in 1969, a large group of American Indians landed on Alcatraz. A relatively unknown treaty with the U.S. government in the 19th century allowed Native Americans to claim abandoned Federal property. Using this treaty, the group claimed Alcatraz as "Indian Land".

The Indians had an elaborate plan for transforming Alcatraz, which included an educational Native American cultural center. Public support quickly grew, with high-profile advocates from show business as well as the Hell's Angels. This was both a blessing and a curse. The volume of visitors to the little island quickly grew overwhelming. Sadly, Alcatraz soon became a haven for the homeless and derelict population.

Before long, the Indians faced the same problems that stymied the prison administration; the total absence of natural resources and the enormous expenses. A series of difficulties culminated in a fire on June 1, 1970 that burned down what had been the Warden's home, the lighthouse keeper's residence, and the officers' club. The Indian community fell apart. Approximately one year later, on June 11, 1971, Federal Marshals removed the remaining occupants from Alcatraz.

In 1972, Congress created the Golden Gate National Recreation Area, which included Alcatraz. The island opened to the public in the fall of 1973. Today Alcatraz is one of the most popular National Historic Parks, with more than one million visitors landing there each year.




Darcia Helle is a published author of mystery/suspense fiction. An avid reader and writer, Darcia immerses herself in all things crime.

Go to http://www.QuietFuryBooks.com to learn more about Darcia and to read her free monthly nonfiction newsletter Guilty As Charged.





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