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eXhale
8th November 2002, 11:34 AM
A friend "accidentally" showed me this article (http://www.hypnosisis.com/new_page_2.htm) which I think is *very* interesting regarding what we do as VJs. Below are some of the most interesting parts (IMO). I think it relates pretty well to that other discussion on subliminals. :)

Light

The knowledge that a flickering light can cause mysterious visual hallucinations and alterations in consciousness is something humans have known since the discovery of fire. It must have been knowledge of great value to the ancient shamans and poets, who learned how to use the images in the flames to enhance their magic. Ancient scientists were also intrigued by this phenomenon, and explored its practical applications. In 125 AD Apuleius experimented with a flickering light stimulus produced by the rotation of a potter's wheel, and found it could be used to reveal a type of epilepsy. Around 200 AD Ptolemy noted that when he placed a spinning spoked wheel between an observer and the sun, the flickering of the sunlight though the spokes of the spinning wheel could cause patterns and colors to appear before the eyes of the observer and could produce a feeling of euphoria.Sound and Light Together

Humans have also long been intrigued by the possibilities for influencing mental functioning that emerge from combining both rhythmic light and rhythmic sound stimulation. Ancient rituals for entering trance states often involved both rhythmic sounds in the form of drumbeats, clapping or chanting, and flickering lights produced by candles, torches, bonfires or long lines of human bodies rhythmically dancing, their forms passing before the fire and chopping the light into mesmerizing rhythmic flashes. Some composers of the past, such as the visionary Scriabin, actually created music intended to be experienced in combination with rhythmic light displays.(Was this Scriabin the first audiovisual artist? ;))

Modern Technology

Technological advances made possible even more powerful combinations of sound and light. Moving pictures developed soundtracks, and moviemakers quickly exploited the potentials of sound to enhance the power of the flickering images on screen, so that movies like ?Gone With the Wind,? ?The Wizard of Oz? and others that followed became true audio-visual experiences in which the rhythmic soundtrack was fused with the flickering light and the rhythmic flickering of montage editing techniques to create alterations in the consciousness of the audience that would have been impossible using only sound or only light.

The interplay of electronic musical instruments and amplified sound with stroboscopic ?psychedelic light shows? that took place in the rock concerts of the 1960s could produce rapid and profound alterations in consciousness. Modern scientific research into the effects of rhythmic light and sound began in the mid 1930s when scientists discovered that the electrical rhythms of the brain tended to assume the rhythm of a flashing light stimulus, a process called entrainment. Research shifted into high gear in the late 1940s when the great British neuroscientist W. Gray Walter used an electronic strobe and advanced EEG equipment to investigate what he called the ?flicker phenomenon.? He found that rhythmic flashing lights quickly altered brainwave activity, producing trance like states of profound relaxation and vivid mental imagery. He was also startled to find that the flickering seemed to alter the brain wave activity of the whole cortex instead of just the areas associated with vision.

Walter wrote: ?The rhythmic series of flashes appear to be breaking down some of the physiologic barriers between different regions of the brain. This means the stimulus of flicker received by the visual projection area of the cortex was breaking bounds its ripples were overflowing into other areas.? The subjective experiences of those receiving the flashes were even more intriguing: Subjects reported lights like comets, ultra- unearthly colors, mental colors, and not deep visual ones. We now know we see and hear with our brain not with our eyes and ears.

A flood of subsequent scientific research in the 1960s and 70s revealed that such flicker effects at certain frequencies seemed to have amazing powers. Various scientists discovered that such photic stimulation could have a variety of beneficial effects, such as increasing IQ scores, enhancing intellectual functioning and producing greater synchronization between the two hemispheres of the brain. Other researchers found that the addition of rhythmic auditory signals dramatically increased the mind enhancing effects.

robotfunk
8th November 2002, 12:33 PM
Interesting stuff indeed. Most of this describes the ''brain machine" effect ( the glasses with strobing lights and headphones ).

A strobe in the right frequency can do similar stuff, as can the low sun when driving past a row of trees.

Also interesting that the epilepsy inducing side of this was already discovered in 125 AD. Strobes and brain machines are known to do this too. After trying a brainmachine for the first time some 12 years ago Ive been trying to do similar stuff with light and sound. One of these experiments led to my only ever epileptic attack. I was trying a sound-only way to induce these frequencies in the brain ( the interesting zone is between 8 and 12 hz). Since the human ear cannot perceive such low frequencies I had to try a trick I had learnt: If you apply a different frequency to each ear, the brain will produce a frequency of exactly the difference between the two.
So if you put 200 hz left and 300 hz right you should hear a 100hz tone. Well I started on a drumcomputer programming a brainy bass with a sine panned hard left and another sine panned hard right with a difference of 8-12 hz (dunno the exact freq and that drummachine has since been stolen).
After tweaking this sound for hours on end on my headphones I noticed my left arm shaking very hectic... faster than i could move it myself and with enormous amplitude. I threw off my headphone and thought what the fuck ... good thing that it only works well on headphones and not on a big PA .

oh and doing interaction design the first assignment was to make some kind of 'drug-like' experience for an amsterdam website and I made an online shockwave brainmachine thingy (my first shockwave project) that you can try for yourself. You put your nose on the dot and close your eyes, moving mouse left / right to change frequency ... again: dont do this if you or your family has an epileptic history!!
the url is
http://www2.hku.nl/~jilt/brainmachine.html

vjpixylight
8th November 2002, 04:06 PM
YESSSSSSS...
Very interesting artical indeed.. I think that combined with a better understanding on how to mix our DNA sequences,
http://www.artic.edu/~pgena/DNAmus.html
that we will be the new audio/visual shaman of the future..

No doubt that we are just now, re-realizing and unlocking these ancient mysteries...

cheers...

townleybomb
8th November 2002, 08:28 PM
a couple weeks ago, while perusing the local resale store, i came across a fantastic "video hypnosis" tape. it was almost exactly what i expected -- a bunch of computer generated animations, with some guy's deep voice repeating "reeeelllllaaaaaxxxxxx....". well...thats the first 30 minutes of it. after that the voice starts trying to convince me to lose weight...and flashes (for about .25 seconds at a time) phrases trying to convince me to eat less. it gets pretty awful. funny, but awful.

anyway, the relaxation part is pretty damn effective. pretty new-age. not really something i'd take too seriously, but i think it taps into the idea that staring at a television screen for too long can make you stop thinking.

elbows
9th November 2002, 02:15 PM
Cool I was reading up on this stuff just the other day, with a view to meditation.

It seems the brain has a variety of different states which it is possible to manipulate using techniques like binaural beats (that headphone stuff)

Delta 0.5Hz - 4Hz high (up to 200uV) Deep sleep
Theta 4Hz - 8Hz low (5uV - 20uV) Drowsiness (also first stage of sleep)
Alpha 8Hz - 14Hz high (up to 200uV) Relaxed but alert
Beta 14Hz - 30Hz low (less than 10uV) Highly alert and focused


Checkout BrainWave Generator software:

http://www.bwgen.com/index.htm

LEVLHED
10th November 2002, 03:38 PM
so, could it be said we are pioneers in "entertrainment"?:jump:

LEVLHED
10th November 2002, 04:17 PM
oh yeah...then there's this little app I got off of audiovisualizers.com that I have yet to get to run...but is certainly on the subject