Faculty Bibliography

A potential specific to no-go reaction in go/no-go reaction time hand movement with discrimination between different colour light stimuli was recorded in the dorsal bank of the principal sulcus and the rostroventral corner of the prefrontal cortex of the both hemispheres in monkeys, called 'no-go potential'. The potential is composed of surface-negative, depth-positive deflections in the cortex at a latency of 85-150 ms from the onset of no-go visual stimulus. Behavioural and electrophysiological studies demonstrated that the no-go potential is related to decision or judgement not to move and to subsequent suppression of movement execution. The same kind of negative potential could be recorded from the human scalp on the same discriminative motor task. It spreads to both sides of the frontal region with its maximum in the vertex (Fz). Magneto-encephalographic studies suggested that electrical dipoles exist in the dorsolateral parts of the both cerebral hemispheres on the no-go reaction of the discrimination task using either hand