>After we discussed the stroboscopic movement illusion in my Sensation &
>Perception class, a student asked why people experiencing seizures
sometimes
>have this same type of perception. (She was basing this on her personal
>experience with seizures). I suppose I could have just made up an
>explanation, but I would rather rely on the vast knowledge on the TIPS
list.
>Also, if you wouldn't mind my posting your explanation on my course
website,
>please indicate that. Thanks in advance.
>David Kreiner
>Professor of Psychology
>Central Missouri State University
>[EMAIL PROTECTED]
>>>>>>>>>>>>>>>>>>>>>>>>>>
Some data at this time suggest that a seisure occurs after a period of high
"normalcy" or "regularity". Brain waves can be entrained with any type of
stimulus with repeative patterns and could cause seisures in some people.
If you want to know why the brain can be entrained it because the brain uses
wavelets to process information and opponent wavelet filters for learned or
habituated information according to Correlational Opponent Processing model
(http://turn.to/ai). An example of entrainment would be the pain picture at
( http://cfa-www.harvard.edu/~peprbv/pain.html ) which can cause migraine
headaches and seisures. About 10% of the people report pain. Before you
show this consider the most horrible headache in your life lasting all day.
This happened to one of my students. Some people report seeing color in the
illusion. Subjective color is due to the same effect. It occurs under the
"old" florescent light bulbs. The flash rate of 60 hertz, and the on/off of
black/white displaced at even correlated distances can entrain the visual
cortex into producing color. Using similar procedures I have had blind
students see colors they have never seen before. Red for red/green color
blind and blue for blue/yellow color blind. My monochromatic student
reported see something that they had not seen before, but I could not
recognize it as any color.
Ron Blue
