Synchronization analysis of multi-channel EEG of schizophrenic during working-memory tasks

A. Pressman, A. Peledu, A. B. Geva

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

A leading hypothesis suggests that schizophrenic patients suffer from a "disconnection syndrome". A failure in functional connectivity curtails the cortical integration and network activation needed to perform working memory tasks. Multichannel EEG from 10 healthy people (control) and 10 schizophrenics have been used for the comparison of several channel synchronization-feature extraction methods such as correlation-coefficient, coherence, Omega complexity. In this study EEG samples are obtained selectively at the delay epochs of a delayed response working memory task. Results of the above methods indicate a difference in brain activity fronto- Temporal channels between control and patient groups, indicating a lack of synchronization alteration ability in the patient group. These fmdings propose that schizophrenics probably "fail" to alter the neural networks of the temporal regions, networks involved in computation of the working memory task Evoke potential of the same data, reviled no explicit waveform which indicates a working memory process, at neither group. The last indicates that the process is of a frequency-energy nature rather than of temporal-transient one.

Original languageEnglish
Title of host publication21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages337-341
Number of pages5
ISBN (Electronic)0780358422, 9780780358423
DOIs
StatePublished - 1 Jan 2000
Event21st IEEE Convention of the Electrical and Electronic Engineers in Israel, IEEEI 2000 - Tel-Aviv, Israel
Duration: 11 Apr 200012 Apr 2000

Publication series

Name21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings

Conference

Conference21st IEEE Convention of the Electrical and Electronic Engineers in Israel, IEEEI 2000
Country/TerritoryIsrael
CityTel-Aviv
Period11/04/0012/04/00

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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