Cortical sensorimotor interactions during the expectancy of a Go/No-Go task: Effects of painful stimuli

Claudio Babiloni, Lars Arendt-Nielsen, Roberto D. Pascual-Marqui, Paolo Maria Rossini, Alfredo Brancucci, Claudio Del Percio, Fabio Babiloni, Giancarlo Sabbatini, Andrew C N Chen

Research output: Contribution to journalArticlepeer-review

Abstract

The intent of this electroencephalography study was to investigate the competition between cortical nociceptive and cognitive-motor processes preceding sensorimotor interactions. Sensorimotor expectancy processes to painful stimulation and motor go/no-go demands were indexed over primary sensorimotor and midline cortical areas by contingent negative variation (CNV). Before the sensorimotor interaction, CNV was observed over midline posterior and bilateral central areas. Early expectancy of painful stimulation and the go/no-go task induced an evident midline posterior CNV. During the late expectancy period, CNV extended to the right central area contralateral to the stimulation. These findings suggest a sequential activation of midline posterior and primary sensorimotor areas contralateral to the painful stimulation as a reflection of the enhanced nociceptive processes preceding painful sensorimotor interactions.

Original languageEnglish
Pages (from-to)925-935
Number of pages11
JournalBehavioral Neuroscience
Volume118
Issue number5
DOIs
Publication statusPublished - Oct 2004

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Clinical Psychology

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