The Brain and Brainwave 
                    Entrainment—
                    The DAVID Device
                   
                  What is Brainwave Entrainment?
                    
                    Each of our senses responds to activity from the environment 
                    and transmits that information to the brain. The senses of 
                    sight and hearing, by their very nature, provide a favorable 
                    environment for affecting brainwaves. By presenting pulsed 
                    audio and visual stimulation to the brain, after a short period 
                    of time, the brain begins to resonate or entrain at the same 
                    frequency as the stimulus. This effect is commonly referred 
                    to as brainwave entrainment (BWE).
                  Comptronic Devices Limited has been designing, 
                    developing, researching and manufacturing audio-visual entrainment 
                    (AVE) devices since 1984. Comptronic’s DAVID device 
                    sends flashes of lights using a pair of eyesets, and pulses 
                    tones through a pair of headphones to gently guide the brain 
                    into altered states of consciousness. 
                  We can slow down the brainwaves for meditation, 
                    pain relief, dream states, hypnosis, deep relaxation, sleep, 
                    creativity, and the relief of stress and anxiety. The DAVID 
                    can also be used to speed up brainwaves, making the DAVID 
                    an ideal tool to treat slow brainwave disorders such as Attention 
                    Deficit Disorder, closed-head brain injury, fibromyalgia, 
                    PMS, chronic fatigue and insomnia. Additional applications 
                    of the David include improved mental and physical performance.
                  PROGRAM ACTIVITY
                  The client follows preprogrammed instructions 
                    in the use of the DAVID device. Each program is intended to 
                    induce a specific brainwave state. To use the DAVID device, 
                    the client simply keys in the number of the program desired, 
                    puts on the eyeset [goggles] and the earphones, then listens 
                    to the audio tones and watches the color display. The user 
                    can also overlay music of his or her choosing if desired.