Alpha event-related desynchronization preceding a go/no-go task: a high-resolution EEG study.

Abstract:

:The authors delineated the time evolution of alpha event-related desynchronization over human frontal, parietal, and primary sensorimotor areas during the expectancy of a go/no-go task. The main issue under investigation was whether anticipatory processes impinged upon cortical areas in sequential or parallel mode. Compared with the control condition, in the experimental condition there was an Alpha 1 desynchronization over the central midline, an Alpha 2 desynchronization increasing over primary sensorimotor areas, and an Alpha 3 desynchronization increasing in parallel over bilateral primary sensorimotor areas. These processes had different temporal features. Results disclose an anticipatory activity of central midline areas and primary sensorimotor areas in both parallel and sequential modes. This reflects an adaptive, energy-consuming strategy rather than an economic waiting for the go stimulus.

journal_name

Neuropsychology

journal_title

Neuropsychology

authors

Babiloni C,Brancucci A,Arendt-Nielsen L,Babiloni F,Capotosto P,Carducci F,Cincotti F,Romano L,Chen AC,Rossini PM

doi

10.1037/0894-4105.18.4.719

subject

Has Abstract

pub_date

2004-10-01 00:00:00

pages

719-28

issue

4

eissn

0894-4105

issn

1931-1559

pii

2004-19607-015

journal_volume

18

pub_type

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