TY - GEN
T1 - Synchronization analysis of multi-channel EEG of schizophrenic during working-memory tasks
AU - Pressman, A.
AU - Peledu, A.
AU - Geva, A. B.
N1 - Publisher Copyright:
© 2002 IEEE.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=34547208424&partnerID=8YFLogxK
U2 - 10.1109/EEEI.2000.924416
DO - 10.1109/EEEI.2000.924416
M3 - Conference contribution
AN - SCOPUS:34547208424
T3 - 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings
SP - 337
EP - 341
BT - 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings
PB - Institute of Electrical and Electronics Engineers
T2 - 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, IEEEI 2000
Y2 - 11 April 2000 through 12 April 2000
ER -