The Light and Sound Dictionary… continued


History: The effects of flickering light stimulation have been known for a long time. Ancient shamans knew that flickering games could result in hallucinations. Around 200 A.D., Ptolemy noted that the flickering of sunlight seen through the spokes of a spinning wheel could cause patterns and colors to appear to the observer, and could produce a feeling of lightheadedness and euphoria. In modern times (1940’s and 50’s) neuroscientist W. Gray Walter used a strobe light to create flickering light stimulation and noted that the brain wave pattern of the whole cortex was changed, not just the area associated with vision. Experimentation in the 1960’s and 70’s showed that adding pulsing sound enhanced the experience. The invention of the microprocessor made it possible for inexpensive light and sound devices to be produced, with hundreds of thousands of people owning mindmachines.

Integration in regards to light and sound session design refers to utilizing frequencies in specific brain states that aid the participant in accepting and incorporating what surfaces into the conscious mind during session experiences.

Intensity is how bright the light stimulation is. Intensity refers to the brightness of the light stimulation.

Just scale is a seldom used musical scale that has seven notes per octave, and is designed to make chords relative to the base of the octave come out correctly. The Just scale is used in dual binaural beat machines to get better chords, and also because the integer pitches of the Just scale make integer binaural beat offsets work better.

Copyright: Michael J. Landgraf &, Granada Hills, CA. / November, 2012 All rights reserved. No part of this book may be copied or duplicated without prior written approval by Michael Landgraf.

Published by Little Minnie’s Publishing House. ISBN 10: 0966259602. ISBN 13: 978-0966259605. All inquiries pertaining to this book should contact