publication . Other literature type . Article . 1999

ERP components in Go/Nogo tasks and their relation to inhibition.

M Falkenstein; J Hoormann; J Hohnsbein;
  • Published: 01 Apr 1999
  • Publisher: Elsevier BV
Abstract
Abstract In visual Go/Nogo tasks the ERP usually shows a frontal negativity after Nogo stimuli (“Nogo-N2”), which possibly reflects an inhibition process. However, the Nogo-N2 appears to be very small after auditory stimuli, which is evidence against the inhibition hypothesis. In the present study we tested this hypothesis by evaluating performance differences between subjects. Assuming that for Ss with a high false alarm rate the inhibition process is weakened and/or delayed, they should reveal a smaller and/or later Nogo-N2 than Ss with a low false alarm rate. This prediction was confirmed, which supports the inhibition hypothesis. However, the Nogo-N2 was aga...
Subjects
Medical Subject Headings: psychological phenomena and processesmental disorders
free text keywords: Visual perception, Electrophysiology, Inhibitory postsynaptic potential, Stimulus (physiology), Constant false alarm rate, Psychology, Cognition, Stimulus modality, Scalp, medicine.anatomical_structure, medicine, Social psychology
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publication . Other literature type . Article . 1999

ERP components in Go/Nogo tasks and their relation to inhibition.

M Falkenstein; J Hoormann; J Hohnsbein;