The terminal CNV and stimulus discriminability in motor and sensory tasks
article
Slow EEG potentials were recorded during the foreperiod of a signal detection task which involved different levels of discrimination difficulty. The subject was requried to react to S2 as quickly as possible or to delay his responses by 1 s. It was found that the contingent negative variation (CNV) was attenuated when no speeded response was required and that larger amplitudes preceded the easy rather than the difficult discrimination. In addition, no differences were found between correct and incorrect detections. On these grounds it is concluded that the CNV is not positively correlated with perceptual sensitivity.
Topics
TNO Identifier
5093
Source
Biological Psychology, 8(3), pp. 213-223.
Pages
213-223
Files
To receive the publication files, please send an e-mail request to TNO Repository.