What are brain waves?
Different mental and physical activities cause the brain to generate electrical waves which can be detected by special sensors and an EEG machine. The waves change frequency depending on the amount and type of activity going on in the brain. Like the ocean, brain waves are stimulated by environmental factors and constantly change. Often brain waves are referred to brain states.
Brain waves represent collections of brain cells that are firing in unison in a particular area of the brain at a particular frequency. Different frequencies in different locations of the brain can be associated with different mental, emotional, or behavioral states. Patterns of brain waves in two different parts of the brain may be more or less related, reflecting more or less communication between the two parts of the brain.
