Altered Mind Waves are oscillating electrical voltages in the brain measuring just a few millionths of a volt. Everyone has brainwaves or Neural oscillations of different frequencies within the brain. Depending on what frequency and in what area of the brain they all have different effects.
However Gamma brain waves have the highest frequency among all brain waves. They are associated with high levels of thought and focus. Neuroscientists believe that gamma waves are able to link information from all parts of the brain.
Growing up with add/adhd can be really frustrating, low amounts of gamma brainwave activity have been linked to learning difficulties, poor memory, and impaired mental processing.