6533b861fe1ef96bd12c594b
RESEARCH PRODUCT
Auditory event-related potentials over medial frontal electrodes express both negative and positive prediction errors
Karolina MoutsopoulouKarolina MoutsopoulouFlorian WaszakFlorian WaszakYi Fang HsuYi Fang HsuYi Fang HsuJarmo A. Hämäläinensubject
AdultMaleAuditory eventbehavioral disciplines and activitiesRewardHumansValence (psychology)Electroencephalography (EEG)Electrodesta515General Neuroscience[SCCO.NEUR]Cognitive science/NeuroscienceElectroencephalographyMedial frontal cortexNeuronal activationFrontal LobeFacial ExpressionNeuropsychology and Physiological PsychologyFaceEvoked Potentials AuditoryFemalePrediction errorsPsychologyNeuroscienceMedial frontal event-related potentials (ERPs)Photic StimulationPsychomotor PerformanceCognitive psychologydescription
International audience; While the neuronal activation in the medial frontal cortex is thought to reflect higher-order evaluation processes of reward prediction errors when a reward deviates from our expectation, there is increasing evidence that the medial frontal activity might express prediction errors in general. However, given that several studies examined the medial frontal event-related potentials (ERPs) by comparing signals triggered by different stimuli and different anticipations, it remains an open question whether the medial frontal signals are sensitive to the valence of prediction errors. Here we orthogonally manipulated expectation magnitude (i.e., large/small expectation) and expectation confirmation (i.e., fulfilled/violated expectation) in a target detection task with rewards. We found that the medial frontal ERPs were more negative-going for unexpected outcomes in comparison with expected outcomes, regardless of whether a large/small reward was expected. The result supports the idea that the medial frontal signals express prediction errors in general regardless of their valence.
year | journal | country | edition | language |
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2015-01-01 | Biological Psychology |