Entropy in Dichotic Listening Eeg Recordings

The electroencephalogram (EEG) reflects the electrical activity of the brain as recorded by placing several electrodes on the scalp. The EEG is widely used for diagnostic evaluation of various brain disorders such as determining the type and location of the activity observed during an epileptic seizure or for studying sleep disorders [1]. The dichotic listening (DL) paradigm is often used to assess brain asymmetries at the behavioral level. Dichotic listening means presenting two auditory stimuli simultaneously, one in each ear, and the standard experiment requires that the subject report which of the two stimuli was perceived best [2]. Entropy is a thermodynamic quantity describing the amount of disorder in the system. It can be viewed as a measure of uncertainty regarding the information content AbstractThe dichotic listening (DL) paradigm has an important role in brain asymmetry studies at the behavioral level. In dichotic listening, the subjects are alerted by diotic or dichotic stimuli which are meaningless, consonant vowel syllables on both ears. The subjects then presented the syllable they heard through a 6 button keypad. During this procedure, the EEG signals of the subjects were recorded by a 64 channel cap.