Trait BIS Predicts Alpha Asymmetry and P300 in a Go/No-Go Task

Inspired by the revised Behavioural Inhibition System (BIS) theory the present study probed the association between individual differences in Trait BIS mid electroencephalogram indicators of conflict processing/inhibition. Sixty-nine male participants either high or low in Trait BIS completed a Go/No-Go task while the electroencephalogram was recorded. As expected, Trait BIS was associated with the No-Go-anteriorisation of the P300 event-related potential (i.e. all index of response inhibition presumably generated ill the dorsal anterior cingulate-an area implicated in conflict processing) and with No-Go-related changes towards left frontal alpha activity (i.e. presumably more activity in right prefrontal cortex-an area implicated in response inhibition). These findings support the role of conflict processing attributed to BIS functioning in the revised theory. Copyright (C) 2009 John Wiley & Sons, Ltd.