Article Intrinsic Emotional Relevance of Outcomes and Prediction Error Their Influence on Early Processing of Subsequent Stimulus During Reversal Learning (original) (raw)

2016

Abstract

Abstract. Infrequent events, such as unexpected absence of outcomes (prediction errors), have a detrimental effect on performance of subsequent trial in various cognitive tasks. In the present event-related potential study, we tested whether the influence of prediction error manifests itself in the early cortical processing of subsequent stimuli. Participants performed a reversal learning task in which they saw two alternating pairs of faces and indicated for each pair which one would have a declared target stimulus on its nose. The target switched to the other face after several consecutive trials with correct response, thereby inducing a prediction error, with the switch being indicated by the appearance of a disk (unexpected neutral outcome) or a spider (unexpected unpleasant outcome), depending on the condition. Results showed that after both unexpected and expected unpleasant outcomes, the amplitude of P2 decreased, while after both unexpected neutral and unpleasant outcomes, t...

Louis Nahum hasn't uploaded this paper.

Let Louis know you want this paper to be uploaded.

Ask for this paper to be uploaded.