Alpha event-related desynchronization preceding a Go/No-Go task: A high-resolution EEG study

Claudio Babiloni, Lars Arendt-Nielsen, Andrew C N Chen, Alfredo Brancucci, Fabio Babiloni, Paolo Capotosto, Filippo Carducci, Febo Cincotti, Lara Romano, Paolo Maria Rossini

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)719-728
Number of pages10
Issue number4
Publication statusPublished - Oct 2004

ASJC Scopus subject areas

  • Biological Psychiatry
  • Neuropsychology and Physiological Psychology


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