Reward prediction error signals associated with a modified time estimation task.
The feedback error-related negativity (fERN) is a component of the human event-related brain potential (ERP) elicited by feedback stimuli. A recent theory holds that the fERN indexes a reward prediction error signal associated with the adaptive modification of behavior. Here we present behavioral and ERP data recorded from participants engaged in a modified time estimation task. As predicted by the theory, our results indicate that fERN amplitude reflects a reward prediction error signal and that the size of this error signal is correlated across participants with changes in task performance.
Holroyd
Clay B
CB
Department of Psychology, University of Victoria, Victoria, BC, Canada. holroyd@uivic.ca
Krigolson
Olave E
OE
D000328:Adult; D003627:Data Interpretation, Statistical; D030141:Feedback, Psychological; D005260:Female; D006801:Humans; D007858:Learning / Q000502:physiology; D008297:Male; D011597:Psychomotor Performance / Q000502:physiology; D012201:Reward; D013998:Time Perception / Q000502:physiology*