Decomposing N2 NOGO wave of event-related potentials into independent components.

Abstract:

:Inconsistencies in previous attempts to localize the N2 wave in the GO/NOGO task led to the present investigation. The inconsistencies were probably because of heterogeneity of psychological operations involved in GO/NOGO tasks. We applied the independent component analysis to a collection of individual event-related potentials in response to GO and NOGO cues in the two stimulus visual GO/NOGO task. The selected six independent components with different topographies and time courses constituted 87% of the artifact-free signal variance. Three of them were loaded into the frontally distributed N2 wave. According to standardized low-resolution electromagnetic tomography these three independent components were generated in the supplementary motor cortex, left angular gyrus and anterior cingulate cortex.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Kropotov JD,Ponomarev VA

doi

10.1097/WNR.0b013e3283309cbd

subject

Has Abstract

pub_date

2009-12-09 00:00:00

pages

1592-6

issue

18

eissn

0959-4965

issn

1473-558X

journal_volume

20

pub_type

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