title: Error-related negativity reflects detection of negative reward prediction error.
abstract: Error-related negativity (ERN) is a negative deflection in the event-related potential elicited in error trials. To examine the function of ERN, we performed an experiment in which two within-participants factors were manipulated: outcome uncertainty and content of feedback. The ERN was largest when participants expected correct feedback but received error feedback. There were significant positive correlations between the ERN amplitude and the rate of response switching in the subsequent trial, and between the ERN amplitude and the trait version score on negative affect scale. These results suggest that ERN reflects detection of a negative reward prediction error and promotes subsequent response switching, and that individuals with high negative affect are hypersensitive to a negative reward prediction error.
authors.affiliation: Department of Psychosomatic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8655, Japan. asak04@df.mbn.or.jp
authors.forename: Asako
authors.initials: A
authors.lastname: Yasuda
authors.forename: Atsushi
authors.initials: A
authors.lastname: Sato
authors.forename: Kaori
authors.initials: K
authors.lastname: Miyawaki
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kumano
authors.forename: Tomifusa
authors.initials: T
authors.lastname: Kuboki
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001921:Brain / Q000033:anatomy & histology / Q000502:physiology*; D004569:Electroencephalography / Q000379:methods; D005071:Evoked Potentials / Q000502:physiology*; D030141:Feedback, Psychological / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests; D011678:Punishment / Q000523:psychology*; D013647:Task Performance and Analysis