In Montgomery Alabama
First Psychotic Episodes
Copyright
2003
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This site is about a conflict of human physiology that shaped history but was undetected until the 1960's.
In the entire history of man on the planet Earth this phenomenon was discovered only once.
It caused mental breaks for office workers.
You will find this material hard to believe.
This phenomenon is explained in first semester psychology lectures where students don't believe it either.
For that reason I wrote a demonstration that will allow you to experience the phenomenon.
The Everquest Connection page has the explanation and assumes you have not taken basic psychology.
The solution for this problem was the office Cubicle.
This site argues that the this phenomenon causes College Suicides and Missing Students.
The phenomenon causes mental events around the world, Chaco Canyon.
If you use computers in unprotected workspace such as homes, dorms, student apartments, and small business offices read ...Prevention... at the bottom of most pages.
Long term exposure can cause severely altered mental states. Qi Gong Kundalini Yoga
If you are visiting the site as part of a school project send the person responsible for controlling violence at your school to this site.
This page is undergoing an edit and there may be duplications of material while this is happening. (2/3/09)
First Psychotic Episodes
First things first, warning:
If you have what you believe are psychiatric symptoms the first recourse is to a full medical workup. There are medical conditions, including stroke, that will produce these symptoms and they should be eliminated first. The information on this page and site will not interfere with that investigation and you will not have to stop any treatment you now have to take advantage of this information.
The authors of the DSM, Diagnostic and Statistical Manual of Mental Illness, freely admit they don't know what causes mental illness. This includes first psychotic episodes.
Sudden mental events have happened through history. Today such temporary mental outcomes still happen. Some of them are called Culture Bound Syndromes. Each ethnic group experiences the event differently due to their understanding of reality. Volumes exploring and explaining psychosocial reasons for CBS's have been written. (See the Culture Bound Syndromes page here to explore them.)
During the early half of the twentieth century "nervous breakdown" was a common name for such an event. Typically the health and mental fragility of the victim was blamed.
Unknown by the general population these mental breaks have happened on scientific expeditions for over a hundred years. From the mass insanity event on the Belgian Polar Expedition of 1898 to a psychotic break on Soyuz-21 the victims have what appears to be a full mental break. They quickly recover when the situation that led to the break is changed, Never the less, even with these common features, no one has connected them.
In the 1950's designers and engineers were hired to modernize business offices. They introduced their first products in 1964 and some of the workers using them began to have mental breaks. No one connected this development with nervous breakdowns or mental illness. The events were not called first psychotic episodes. Later when the American Psychiatric Association began to rename certain behaviors. The nervous breakdown became a dissociative mental break.
Because they knew what they had changed designers were able to isolate the problem and hired experts to find out why those changes sometimes caused mental breaks. It was the vision startle reflex and the cubicle solved that problem by 1968.
Because the victim in offices recover quickly with no treatment designers think the phenomenon can only cause a harmless temporary episode. They treat knowledge of it as proprietary.
No one in mental health services is aware that this discovery ever happened.
It requires a bit of imagination to see that these mental events in offices are not an office problem. Desks, chairs, and filing cabinets don't have mental events people do. It's a problem of human physiology not office workspace.
Hour after hour of mental concentration to perform office duties coupled with the movement of office staff near the worker allows Subliminal Distraction exposure.
Creating the "special circumstances" for Subliminal Distraction exposure allows 'accidental subliminal operant conditioning.' The mental break happens if there is intense exposure in a compact time frame. The subject will recover with no harm if exposure stops.
No one is screening incoming patients for this exposure before beginning treatment. If you recover while taking a drug treatment the drug will be credited. There is no objective testable evidence that psychotropic drugs do anything. No drug company controls their tests for Subliminal Distraction exposure. It is a well kept secret that a placebo often beats the drug being tested. There has been a suggestion that psychotropic drugs are actually functioning as active placebos. Subjects improve on placebos but relapse when told that they were taking the placebo.
Doctors have a similar problem in hospital intensive care units, ICU Psychosis. One in three people who spend more than five days in an ICU has a mental breakdown, They have hallucinations, hear voices, fight with staff and when they leave the ICU they quickly recover. Some of them say they believed the staff intended to kill them.
Designers and engineers solved the problem of mental breaks in offices but doctors are still arguing about the correct name for the problem rather than solving it. A simple examination searching for the elements of Subliminal Distraction demonstrate that both problems are the same event. (Google ICU Psychosis.)
When my wife, Connie, had a psychotic break in the payroll office of the University of Alabama, each doctor we saw arrived at a different diagnosis with the identical set of facts and medical/psychological test results. They discarded information they didn't understand or want to use to reach a favorite, or financially beneficial for them, diagnosis.
I provided doctors at the University of Alabama Psychiatric Surgical Hospital the phone number of an engineer there in Birmingham to verify the problem was real. They refused to contact him and insisted my wife needed ECT. Eventually they resigned the case. This is the premier medical school for the State of Alabama. On the advice of my doctors we moved to Georgia and Emory University medical school. (This is expanded on the Personal Experiences page.)
You will find this pattern in your treatment efforts. This site offers the suggestion that it's visual subliminal distraction exposure that causes most first psychotic episodes. There is no treatment for this exposure. The solution is to find where you have it and make changes to eliminate it.
Subliminal Distraction is explained in first semester college psychology under the physiology of sight. Acoustic SD also exists because the facts of physiology for sight and hearing are similar but there is no potential psychiatric component to it. Hearing is sensory adaptable but sight is not.
<Edit ends here 2/3/09 the remaining text is the old version of this page. It is being integrated with the current edit. >
Mental Illness:
Over the long history of investigation many things have taken their turn as the cause of mental illness. When statistics showed that inner cities had higher rates of schizophrenia than rural areas, depravation was put forth, as its cause. When patients got better in hospitals then worse when they returned home, poor parenting and failed home life was believed to be a cause. Victims of bipolar disorder and other psychiatric problems often blame their own childhood abuse.
In the 1800's most mental illness lasted less than a year, There have been historical cases where psychosis solved quickly. Reverend Mr. George Trosse was committed to a mad house three times, recovering while committed but relapsing after release. After the third release he then went on to become a major figure in religious history. He blamed Satan for his derangement. This was the belief for hundreds of years.
Now modern medicine has discovered chemical changes in the brains of some schizophrenic’s and this too has moved to the top of the list of probable cause for mental illness even though there is only a statistical correlation for the theory.
The experts who abandoned that early information made a mistake. While their conclusions were wrong the observation was accurate, there was more mental illness in crowded urban areas. But information was not available then that would allow them to understand why that was so.
Today there are still studies being done in Scandinavia attempting to find a genetic or psycho-social reason that mental illness is more prevalent in urban areas. The statistics have held true for more than a hundred years although modern era studies began in the 1930's. (The 'Mad Travelers' of France epidemic began about 1880.They were all clerks, artisans, and small shop keepers. Farmers or rural residents were not involved.)
There is a simpler solution for the cause of first psychotic episodes. It is something "hard wired" into our physiology of sight. It can be shown to cause psychotic episodes by observation of two exercises. Both Qi Gong and Kundalini Yoga produce the mental breaks.
This problem with human physiology related to the human vision startle reflex was discovered in the 1960’s when it caused mental breaks for knowledge workers. They were using new movable close-spaced workstations. Psychologists determined that Subliminal Sight and Peripheral Vision Reflexes had operated in those special circumstances to cause the mental breaks. Outside the United States in the field of Design the problem is called Subliminal Distraction. That term has a limited definition here. It usually refers to sounds subliminally perceived while attempting to concentrate in a busy environment.
Every human who ever lived had and has an evolutionarily developed system that will subliminally detect movement toward you and attempt to warn by breaking your concentration with a startle. You will experience a urge to quickly look in the direction of the detected movement. If you have ever been startled when someone stepped up beside you or caught something out of the corner of your eye, that is the brain system that causes the problem. That system cannot be turned off. It can be ignored and if you do that you will habituate notice of the detected movement within seconds. The subliminal action of the system prevents your being aware that your brain is still detecting threat movement and attempting to force the startle.
Herman Miller Inc. introduced the Action Office 1 in 1964 but modified it by adding vision-blocking panels in 1968. This created the Action Office System, cubicle, and the mental breaks stopped.
Although they must have known it is a ‘conflict of physiology’ not a problem of office space, when they solved their problem they didn’t investigate further.
The episode created when there is intense short term exposure resolves with no treatment once the stimulation of the subconscious stops.
In ICU Psychosis, Qi Gong psychotic reaction, Kundalini Yoga, and Landmark Education's seminar, The Forum, these bizarre episodes all do that. That is one reason to believe these episodes are the same. The major reason is that you can examine the activity and find the elements for Subliminal Distraction.
Today so few people are aware of why the cubicle was created the problem is never considered when there is a first psychotic episode, student suicide, strange disappearance, or mass school shooting.
The Redlake shooter left a journal entry that tells what he did to cause exposure.
The Virginia Tech shooter had created the "special circumstances" for exposure when he used the suite common room to study while others walked by ignoring him. While the episode this phenomenon causes may resolve if stimulation stops the outcome of low-level long-term exposure can be tragic. Seng-Hui Cho had been exposed as his roommates left and returned to the dorm suite rather than the exposure you would expect during the eight hour work day in a crowded business office. Interviews said he increased the at risk activity in the month before the shooting.
But when exposure is low level and persistent over long periods the exercises create narrowly focused, psychotic, altered mental states. Qi Gong masters begin to believe they have superhuman strength and supernatural powers. They think they can cast energy, chee, from their fingertips to strike opponents. Some Kundalini Gurus believe they can levitate, dematerialize, become invisible, walk through solid objects, and that they can read your thoughts or control your actions through mental telepathy. This happens when they experience the Awakening of Kundalini. The same phenomenon in Qi Gong is called "opening the third eye." Qi Gong Psychotic Deviation is included as a Culture Bound Syndrome in the DSM but not the Awakening of Kundalini even though they are near identical activities and produce similar mental outcomes.
Acolytes of these exercises believe they are reaching a higher plane of existence for the purpose of achieving enlightenment. They have been doing this for 2400 and 3000 years respectively.
There is YouTube video of someone with this altered mental state. It is taken from a National Geographic Channel program "Is It Real?" If the video is removed you can still see the segment aired on Cable TV. The episode is called "Superhuman Powers."
AS YOU WATCH THIS VIDEO, observe the back ground activity. Some of it is in Dillman's peripheral vision. Some of the movement is in selected audience member's peripheral vision. That movement of one audience member detected by another is a subliminal distraction as well as a stimulus to reinforce belief in the observed activity. That is how they come to see Chee as a force they can learn to control.
You should consider it as a subliminal form of operant conditioning.
G. Dillman on National Geographic's video link Total clip time 9:06.
The 'Third Eye,' a belief from Qi Gong, is mentioned at time mark 1:29. At time mark 3:41 he claimed telepathic powers, being able to control the actions of people waiting in line at Starbucks. At time mark 6:13 a test demonstration of Chee begins. Dillman explains the failure of a trial of his powers beginning at time mark, 7:11.
YouTube URL for this clip http://www.youtube.com/watch?v=lsSzSflkns8
Dillman is not mentally ill yet if any other person said these things that person would be held for observation. What is the difference? The degree to which daily functioning is effected is the determining factor to allow the diagnosis of mental illness. Dillman is a successful business man who believes he has supernatural powers. Those diagnosed with mental illness have lost intellectual capacity.
In Schizophrenia there is brain atrophy. Twin studies showing increased ventricle size and thus loss of brain material are used by some who make claims of causation. There are cases of diagnosed schizophrenia without atrophy. That leads to question whether brain atrophy and the loss of mental capacity causes mental illness or does the onset of mental illness cause atrophy? Is the decrease in brain volume a separate issue being caused by disease co-occurring with mental illness.
This site offers the suggestion that sudden episodes that have beliefs like Dillman can be mistaken for first psychotic episodes. Another choice is that they may be first psychotic episodes.
Doctors and mental health professionals are not aware of this problem. Patients are not screened for Subliminal Detraction exposure before treatment is begun. If the condition remits because SD exposure stops drugs and other treatments are credited.
How does this exposure happen?
QiGong and Kundalini Yoga
Exposure can be seen and defined by examining two activities, Qi Gong and Kundalini Yoga. Both exercises produce the sudden apparently harmless mental break, or first psychotic episode, when too many exercise sessions are done in a compact time frame. Many sites warn of mental difficulties while on the road to enlightenment. But those sites believe that supernatural forces cause these problems. Low level long term Subliminal Distraction exposure is present to produce those episodes as well as bizarre beliefs and altered mental states.
Exposure first discovered in business offices is difficult to conceive in the two exercises.
When Qi Gong or Kundalini Yoga group exercises are performed eyes-open concentration, meditation, is substituted for the mental investment and slight dissociation necessary to perform knowledge work. Movement of others in the exercise group creates the threat movement detected when office staff walks close beside an unprotected knowledge worker.
Because of the way the vision startle reflex is formed from the subliminal detection of movement in peripheral vision exposure can be cumulative.
Classrooms
Classrooms can create the same situation as the 1960’s business office. But students do the same things at the same time so that exposure is limited. There is no easily detectable movement in a young student's peripheral vision. When puberty increases body size, exposure spikes. The spacing for student desks does not change relative to body size after puberty and larger bodies make movements easier to detect. Academic demands increase so that the student spends more time in deep mental investment. Increased time in a mental state of full investment creates more opportunity for exposure. That’s why schizophrenia onsets in adolescence. The base level of exposure increases so that would allow total exposure to reach a critical level for some students.
Schizophrenia can be explained as an altered mental state without the narrow focus encountered when exposure is coupled with instruction in bizarre belief systems.
The delusions of Schizophrenia are known to be culture specific. In Japan Schizophrenia appears with delusions of offending someone. In Ireland delusions have religious overtones. Here in the United States technology frames delusions. An examples are delusions of contact with extraterrestrial aliens or believing that special messages are being communicated through TV program content.
As explained here on VisionAndPsychosis.Net this altered mental state can be layered on any other disorder, neurological problem, or illness. Only the blind are immune.
Hutterite colonies have very low levels of schizophrenia. They intermarry thus genetics are being investigated to find a reason for that low incidence. But Hutterites stop schooling in the ninth grade before the full effect of increased exposure to subliminal distraction would be realized.
The designers and psychologists who discovered this phenomenon, Subliminal Distraction, did not understand what they had found. They made three basic mistakes. They thought their encounter was the first time the phenomenon had been created. Its temporary period of confusion and pseudo-psychotic behavior was believed to be harmless and the only outcome of exposure. Massive exposure such as in the business office was believed to be necessary to cause any psychiatric outcome. None of that is true.
Too-small single-room and multi-person single-room living arrangements
A variety of behaviors we all have can allow SD exposure if the movement in peripheral vision is frequent enough and that massive exposure happens in a compact time frame. Evidence of this is from mysterious occurrences in the history of psychology.
The jumping diseases, startle-matching behaviors, provide a path to understand the phenomenon. They are so strange it cannot be argued that the cases are some other disorder. Victims exhibit hyper-startle and hyper-suggestibility at the point of startle. They have behaviors, usually only seen in catatonic schizophrenia.
As Culture Bound Syndromes these behaviors exist around the world. In cases investigated here traditional or ethnic housing is single-room or there is some activity that allows Subliminal Distraction exposure.
Jumping Frenchmen of Maine was discovered when lumberjacks lived in bunkhouses in 1880’s Maine. When a lumberjack chooses an open, unprotected, location to perform an activity requiring mental investment to the point of slight dissociation they can be exposed as others move too-close beside them. . There are no desks and filing cabinets but the mental investment and exposure are the same as those 1960’s offices. That syndrome disappeared when modern logging equipment replaced bunkhouses of men in remote lumber camps. Rather than the eight-hour business day exposure is limited to nights and those days too inclement to work outside. This is intense exposure of shorter duration than office situations but longer than the one or two exercise periods each week for Qi Gong and Kundalini Yoga.
In Malaysia entire villages live in a single longhouse. Without electrical power for lighting they must sit near a window or door to perform craftwork requiring mental investment. Other villagers walk by to enter or exit creating exposure. This makes exposure of random length and intensity. Latah is the jumping disease of Malaysia.
There have been single cases of startle matching behaviors recorded as a result of working on factory floors. Concentration to operate a lathe, punching machine, or even a Post Office mail-sorting machine creates the opportunity for exposure if there is repeating detectable movement in peripheral vision.
M. H. Saint-Hilaire has proposed that Jumping Frenchmen of Maine can be explained as being caused by operant conditioning. But without knowledge of the 1960’s discovery no one was able to suggest a source of stimulus to create operant conditioning. The subliminal detection of threat movement together with the internal brain efforts to force a startle and vision reflex are that source. When your brain understands that stimulus to be reinforcement of contemporary thought and activities ‘accidental subliminal operant conditioning’ happens. That repeating subliminal appreciation of threat eventually colors thought and reasoning creating psychotic paranoia.
Too-small single-room living situation has produced mental breaks with violence. Fur trappers, mountain men, preferred to over-winter alone rather than risk that a cabin mate would go berserk and try to kill them. It was called Cabin Fever. There have been mental breaks on Russian space missions, Soyuz 21/Salut-5. The too-small capsule and scientific work create opportunities for exposure. Just as in ICU Psychosis, Culture Bound Syndromes, and the early office workplace experience non-violent victims usually recover without treatment.
This argues that violence in inner cities is, in part, caused by crowded living conditions where many family members are in too-small apartments. Remember that in the 1930's schizophrenia was more prevalent in inner cities than rural areas. That fact was replicated both here and in Europe.
A fifteen year study examined watching violent TV as a cause of violence in children. But I am unaware of any control factor for the size of the family, birth order, or the nature of the living arrangements. When young children watch TV they often sit close to the set and watch with suspension of disbelief. They are completely focused on the action. Think about the last time you attempted to call a young child away from a TV program. They become so deeply involved watching that It often takes several attempts to gain their attention. That mental state is similar to the mental investment necessary to perform knowledge work. Movement of other children or even family pets could easily be detected in peripheral vision by these concentrating watchers.
Even eyes-open daydreaming causes slight dissociation. There has been a recent study that found a correlation between children who daydream and those who later become schizophrenic. Film studies showed that children who stand back and observe rather than participate in social activities had a high correlation for schizophrenia.
Conclusion
First psychotic episodes are an unsolved problem. No one knows or can prove a cause. Each practitioner has his or her own theory as to causation. None of them is aware of a simple problem discovered because it caused mental breaks. Exposure is silent, painless, and invisible. Because of the bizarre way the human vision field functions and reacts or detects movement to trigger the vision startle reflex we cannot consciously experience this exposure.
If exposure stops the symptoms will stop. If you have experienced a first psychotic episode examine your activities in the weeks before that event to determine if you might have had Subliminal Distraction exposure. Avoid problematic behaviors or make slight changes to prevent SD exposure.
Such an examination will cost nothing and it will not interfere with any treatment you have.
While any lessening of exposure will help you may not see an immediate improvement if you have had several such episodes.
Editing is paused at 2:15 AM on Jan 24, 2009. Punctuation corrections 1 PM Jan 24. The material is repeated on several pages so that some pages are "stand alone" versions and some are hyperlinked to definition pages. There is a conversion to cascading style sheets ongoing.
Research Links for this page. Site links are an Internet Explorer "Favorites" export page. (Off page link.)
Psychosocial Treatment for First-Episode
Psychosis: A Research Update
David L. Penn, Ph.D., Evan J. Waldheter, M.A., Diana O. Perkins, M.D., Kim T.
Mueser, Ph.D. and Jeffrey A. Lieberman, M.D
Am J Psychiatry 162:2220, December 2005
doi: 10.1176/appi.ajp.162.12.2220 © 2005
American Psychiatric Association
"Psychotic disorders, particularly schizophrenia, are the most disabling of all mental illnesses. In fact, schizophrenia is included among the world’s top 10 causes of disability-adjusted life-years. ..."The largest expenditure for mental health in the United States is for schizophrenia , with an annual cost of $32.5 billion . Most of this cost can be attributed to repeated hospitalizations following relapse.
http://ajp.psychiatryonline.org/cgi/content/full/162/12/2220
This site argues that relapses are caused by behaviors or accidental events that increase exposure from Subliminal Distraction.
Vision Links from Peripheral Vision page.
I recommend this site. But you will have to browse several pages.
"Early in evolution, human ancestors had only peripheral vision. The role of this early vision system (still preserved in our eyes) was to detect motion and set off protective reflexes."
http://www.wayfinding.net/vsionsys.htm
Peripheral vision Lego tester
Adobe file with tester construction and data results sample
http://www.edex.com.au/lego/support/activities/032_peripheral_vision.pdf
Nightwalking
"In The Book of Five Rings, Miyamoto Musashi, the legendary swordsman of 16th century Japan, implies that he fought his greatest duels with his eyes crossed, and goes into considerable detail about developing and using this strange abitlity."
The method suggested to engage peripheral vision is to suspend an object from the bill of a baseball cap and practice staring at it rather than looking straight ahead as we all normally do.
The site has a page on the physiology of the eye and sight. It describes the normal field of vision.
http://www.navaching.com/hawkeen/nwalk.html#Anchor-The-59125
Institute for Innovative Blind Navigation
Don't let the site name put you off. This site has several pages which explain sight and how the brain deals with two vision systems.
http://www.wayfinding.net/index.htm
This page has the vision material. http://www.wayfinding.net/vsionsys.htm#four
Speed Reading (peripheral vision)
http://www.ababasoft.com/wider_eye_span/
Vision, is a set of brain level subsystems
This page explains the M & P pathways and vision processing.
http://www.wayfinding.net/visanal.htm
The Red Myth
Color in Vision
http://stlplaces.com/night_vision.html
University of Missouri
The first paragraph on this page refers to psychological factors effecting pupil dilation.
"Interestingly, the pupil/iris combination also changes in response to psychological factors. One sign of activation of the sympathetic nervous system, which is a system important in arousal, fight, and flight, is dilated pupils. For example, sexual interest results in pupil dilation. (This piece of information may come in handy some time.)"
http://web.umr.edu/~psyworld/eye.htm
University of Utah
John Moran Eye Center -- Anatomy
http://webvision.med.utah.edu/
Kimball's Biology Pages
A simple explanation of the eye and sight.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/V/Vision.html
Understanding Human Vision
This site deals with color.
http://www.pitir.com/pentile/Human_Vision.html
Vision and the Brain
Block diagrams of vision paths through the brain explain the M and P channels.
http://www.thebrain.mcgill.ca/flash/i/i_02/i_02_cr/i_02_cr_vis/i_02_cr_vis.html#2
Study Notes Vision
http://www.utmed.com/studynotes/neuro/VisualProcessing.pdf
++ Use your [Home] key to return to the top of the page
and site navigation.
Prevention:
This section is now repeated at the bottom of most pages.
The rare occurrence of the
injury establishes that is difficult to create enough exposure to cause an
injury. But when it does happen the consequences are serious, possibly fatal.
Our personal experience
was intermittent human traffic during eight-hour workdays for thirty calendar
days.
If you have a tower CPU mount
it under your desk. That's the way they position it in a cubicle. The hard drive
busy light is about the height of your low peripheral vision if you put the
tower on the desk. Desktop reading of text or writing notes beside the keyboard
on the side of the monitor away from the tower makes the blinking hard drive
busy light appear to approach from behind when you turn to view the screen
again.
If you have a computer work
station/desk in which you turn ninety degrees to write or do other non computer
work, turn off the monitor when you turn aside. Remove screen savers in this
instance. The movement, animation for example, in your screensaver,
two-dimensional movement, might well be detected by your peripheral vision at
close range. Alternately cover the monitor screen.
All home, apartment, or
dorm computer workstations are in unprotected workspace.
To change that put the computer in a quiet room with no possible movement. If
that is not possible in a dorm or apartment position the computer so that your
peripheral vision can see only stationary walls as you use the computer in a
busy room. In Cubicles and 'Systems Furniture' these protective features are
achieved with peripheral vision blocking panels and corner seating positions. It
is called 'Cubicle Level Protection.'
If you use computer or CD-ROM
games for many hours day after day, the game playing position should follow the
same rules as the computer workstation. Battery operated games will not run long
enough on a single rechargeable battery to cause a risk for SPVP.
Although a laptop does not
have a visible blinking light in peripheral vision the same rules apply to your
work position. There should not be human traffic moving to you from
behind. There should be nothing behind you, which could enter your subliminal
peripheral vision field as you turn your head while working at the laptop and be
mistaken for threat movement.
Only movement coming from
behind you into your Subliminal Peripheral Vision can cause a peripheral vision
reflex. If the movement source approaches you from ahead then enters your
Subliminal Peripheral Vision from conscious sight there can be no peripheral
vision reflex.
Repeated for Emphasis:
A single session or rare
sessions will not cause this problem.
It is the same day after day
long hours of play or computer use with detectable movement in ‘Subliminal
Peripheral Vision,’ which would form the basis of a risk for SPVP injury.
The brain’s detection system only evaluates movement. There is little recognition of the nature of the object in peripheral vision. If you have several hours exposure from human traffic at the library, while reading at an open table or seated in a reading room chair, followed by long hours watching TV with a critically misplaced ceiling fan sweeping detectable shadows around the room, the combination of those two behaviors might cause the problem. The suggestion is that either activity alone would not consume enough exposure time even if the critical movement is present.
Copyright 2003
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