Prestimulus EEG microstates influence visual event-related potential microstates in field maps with 47 channels

Kondakor, I.; Lehmann, D.; Michel, C. M.; Brandeis, D.; Kochi, K.; König, Thomas (1997). Prestimulus EEG microstates influence visual event-related potential microstates in field maps with 47 channels. Journal of neural transmission, 104(2-3), pp. 161-173. Springer 10.1007/BF01273178

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The influence of the immediate prestimulus EEG microstate (sub-second epoch of stable topography/map landscape) on the map landscape of visually evoked 47-channel event-related potential (ERP) microstates was examined using the frequent, non-target stimuli of a cognitive paradigm (12 volunteers). For the two most frequent prestimulus microstate classes (oriented left anterior-right posterior and right anterior-left posterior), ERP map series were selectively averaged. The post-stimulus ERP grand average map series was segmented into microstates; 10 were found. The centroid locations of positive and negative map areas were extracted as landscape descriptors. Significant differences (MANOVAs and t-tests) between the two prestimulus classes were found in four of the ten ERP microstates. The relative orientation of the two ERP microstate classes was the same as prestimulus in some ERP microstates, but reversed in others. — Thus, brain electric microstates at stimulus arrival influence the landscapes of the post-stimulus ERP maps and therefore, information processing; prestimulus microstate effects differed for different post-stimulus ERP microstates.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Psychiatric Neurophysiology [discontinued]

UniBE Contributor:

König, Thomas


600 Technology > 610 Medicine & health








Thomas König

Date Deposited:

14 Aug 2014 16:08

Last Modified:

06 Jan 2015 21:02

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

ERP microstates, event-related potential maps, state-dependency of ERP maps, prestimulus EEG microstate, visual odd-ball paradigm




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