Altered states of consciousness: In as early as 1987 it was discovered that photic stimulation at specific frequencies produced an altered state of consciousness. An extremely small study with just 4 individuals involved photic stimulation at 6 Hz, 10 Hz, and 18 Hz. The results were reported to have altered their conscious awareness. This really isn’t that surprising to anyone that’s used brainwave entrainment therapy.
Brainwave entrainment also happens with the use of pulsating light, and visual and auditory stimuli are sometimes combined for additional effect and visual stimuli is used alone. Using brainwave entrainment techniques is safe for almost everyone, the exception being pregnant women and people who have seizure disorders who should check with their physician before using these methods.

In March I started using the CDs that I affectionately call “Meditation for Dummies” and am very pleased with the results so far. My blood pressure has dropped, I am sleeping better and notice that I feel much more calm and less stressed. Instead of feeling that I need to “find the time” in my schedule to meditate, I look forward to that totally relaxing half hour–that peaceful feeling of floating.
In a 2016 interview, organoid pioneer Madeline Lancaster at the Medical Research Council  Laboratory of Molecular Biology in Cambridge, England said of her 3D  brain tissue structures, “Just to be clear, they are not really human  brains.” At the time, she was able to recall 16 labs around the world  who had adopted her technique. But did she foresee that a year later, other labs would be injecting them into mouse brains? If neural networks  are at the root of consciousness and if we don’t fully understand how consciousness arises because of them, do we need to consider the ethical implications of producing brain organoids, which are becoming better and better at forming functional connections? The president of the Allen Institute for Brain Science in Seattle, Christof  Koch, has concerns, saying in an interview last year “We are entering totally new ground here. . . the science is advancing so rapidly, the ethics can’t keep up.”
An invigorating, brain-sharpening session, this audio starts at 14Hz, a beta feel-good frequency and SR harmonic. It then steps up in six-minute harmonic increments, gradually up to gamma 39Hz, leaving you feeling mentally stimulated and full of energy. A binaural beat track supports the main frequencies for those wearing headphones. Uplifting background music with embedded amplitude modulation provides a further layer of entrainment. Excellent for use as a morning alarm clock, ahead of a big night out, or to inspire those tired trips to the gym.