TY  - JOUR
TI  - Electroencephalographic Correlates of Visual Search Task Solution in Humans
T2  - Psychology. Journal of Higher School of Economics
IS  - Psychology. Journal of Higher School of Economics
KW  - selective attention
KW  - visual search
KW  - EEG desynchronisation
KW  - video-oculography
KW  - electrooculogram
AB  - The authors have undertaken a study of alpha EEG dynamics associated with a task involving visual search of a relevant stimulus among several irrelevant stimuli. The control condition involved simple examination of several identical stimuli. Video-oculography was used to verify gaze direction associated with relevant stimulus search. The alpha EEG dynamics (desynchronisation) was considered as a correlate of attentional processes, and was shown to increase upon discovery of a relevant stimulus, compared to the levels recorded under control condition. The increase in desynchronisation during visual search is apparently associated with processes of stimulus relevance estimation (when voluntary modality-specific attention is involved). Even larger desynchronisation occurring in the frontal lobes supposedly reflects the significance of carrying out an adequate motor programme (when prefrontal attention mechanisms are involved).
AU  - Natalya Yermachenko
AU  - Aleksandr Yermachenko
AU  - Alexandr Latanov
UR  - https://psy-journal.hse.ru/en/2011-8-1/29328739.html
PY  - 2011
SP  - 89-100
VL  - 8