Back to Search Start Over

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

Authors :
Babiloni C
Brancucci A
Arendt-Nielsen L
Babiloni F
Capotosto P
Carducci F
Cincotti F
Romano L
Chen AC
Rossini PM
Source :
Neuropsychology [Neuropsychology] 2004 Oct; Vol. 18 (4), pp. 719-28.
Publication Year :
2004

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.

Details

Language :
English
ISSN :
0894-4105
Volume :
18
Issue :
4
Database :
MEDLINE
Journal :
Neuropsychology
Publication Type :
Academic Journal
Accession number :
15506840
Full Text :
https://doi.org/10.1037/0894-4105.18.4.719