title: Cortical rhythm of No-go processing in humans: an MEG study.
abstract: OBJECTIVE
  We investigated the characteristics of cortical rhythmic activity in No-go processing during somatosensory Go/No-go paradigms, by using magnetoencephalography (MEG).
  
  
  METHODS
  Twelve normal subjects performed a warning stimulus (S1) - imperative stimulus (S2) task with Go/No-go paradigms. The recordings were conducted in three conditions. In Condition 1, the Go stimulus was delivered to the second digit, and the No-go stimulus to the fifth digit. The participants responded by pushing a button with their right thumb for the Go stimulus. In Condition 2, the Go and No-go stimuli were reversed. Condition 3 was the resting control.
  
  
  RESULTS
  A rebound in amplitude was recorded in the No-go trials for theta, alpha, and beta activity, peaking at 600-900 ms. A suppression of amplitude was recorded in Go and No-go trials for alpha activity, peaking at 300-600 ms, and in Go and No-go trials for beta activity, peaking at 200-300 ms.
  
  
  CONCLUSIONS
  The cortical rhythmic activity clearly has several dissociated components relating to different motor functions, including response inhibition, execution, and decision-making.
  
  
  CONCLUSIONS
  The present study revealed the characteristics of cortical rhythmic activity in No-go processing.
authors.affiliation: Department of Integrative Physiology, National Institute for Physiological Sciences, Okazaki, Japan. nakata@aoni.waseda.jp
authors.forename: Hiroki
authors.initials: H
authors.lastname: Nakata
authors.forename: Kiwako
authors.initials: K
authors.lastname: Sakamoto
authors.forename: Asuka
authors.initials: A
authors.lastname: Otsuka
authors.forename: Masato
authors.initials: M
authors.lastname: Yumoto
authors.forename: Ryusuke
authors.initials: R
authors.lastname: Kakigi
mesh_terms: D000328:Adult; D000513:Alpha Rhythm / Q000502:physiology*; D001611:Beta Rhythm / Q000502:physiology*; D001931:Brain Mapping; D003657:Decision Making / Q000502:physiology; D004558:Electric Stimulation; D005260:Female; D005385:Fingers / Q000294:innervation / Q000502:physiology; D006801:Humans; D015225:Magnetoencephalography; D008297:Male; D008959:Models, Neurological; D009043:Motor Activity / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology*; D013003:Somatosensory Cortex / Q000502:physiology*; D013826:Theta Rhythm / Q000502:physiology*