EEG complexity

From Pheno Wiki
Revision as of 11:15, 26 October 2009 by Jstepha (Talk | contribs)

Jump to: navigation, search


Papers List | Variables List

EEG complexity

Basic Characteristics

  • Description

Electroencephalograms (EEG) measure and record electrical activity in the brain. Electrodes are attached to the head and hooked by wires to a computer. Recording of the brain's activity is usually about 20-40 mintues long. EEG is noninvasive, radiation-free, and repeatable.The EEG captures a physiological measure of the momentary functional state of underlying cerebral structures. The reconstructed attractor (D"2) is a specific human value for the EEG. Correlations of the EEG's reconstructed attractor are a quantitative characteristic. These are considered a measure of EEG complexity and can be interprated as variability in brain functioning or a correlate of independent cell assemblies number. Variations in underlying neural dynamics have been associated with individual differences in cognition and a number of nueropsychological disorders.

There is a direct relation between EEG complexity and the complexity of behavior in psychosis. EEG abnormalities have been observed in Schizophrenia but these abnormalities are not diagnostic. Conditions such as seizures can also be seen by changes in patterns of brain activity using the an EEG. The main diagnostic use of the EEG is for Epilepsy.

  • History
  • References
Stephan, Friston   Frith 


Related Information

  • Task or test associated with this construct (vote for your favorite, or nominate a new one by editing this page):
  • Indicators (dependent variables, conditions, or contrasts; measurement variables used for analysis) associated with this construct (vote or nominate by editing this page):
  • Closely related pages (vote or nominate related pages by editing this page):
  • CNP Level

External Resources


Other Details