ANALYSIS OF THE ELECTROENCEPHALOGRAPHY AC TIVITY ACCORDING TO THE CHAOS THEORY

The purpose of this article is to show how chaos theory can help us to understand complexity of electroencephalographic (EEG) activity. A br ief introduction of this theory is made and the definition of its term inology. Then, works published up to date are revised and possibilitie s that it offers to know about complexity of EEG activity in normal su bjets and in patients with some psychopathology. In addition, it analy ses the cerebral activity during wathfulness and during sleep. Lastly it is pointed out how chaos theory can distinguish changes in the EEG activity when any pathology is present and between the activity of sle ep and watchfulness as well. Some suggestions about the meaning of the EEG activity into chaotic dynamics are proposed also.