Gallant Dyson manuscript_FINAL.pdf (558.96 kB)
Neural modulation of directed forgetting by valence and arousal: an event-related potential study
journal contribution
posted on 2023-06-09, 02:32 authored by Sara N Gallant, Benjamin DysonIntentional forgetting benefits memory by removing no longer needed information and promoting processing of more relevant materials. This study sought to understand how the behavioural and neurophysiological representation of intentional forgetting would be impacted by emotion. We took a novel approach by examining the unique contribution of both valence and arousal on emotional directed forgetting. Participants completed an item directed forgetting task for positive, negative, and neutral words at high and lower levels of arousal while brain activity was recorded using electroencephalography (EEG). Behaviourally, recognition of to-be-remembered (TBR) and to-be-forgotten (TBF) items varied as a function of valence and arousal with reduced directed forgetting for high arousing negative and neutral words. In the brain, patterns of frontal and posterior activation in response to TBF and TBR cues respectively replicated prior EEG evidence to support involvement of inhibitory and selective rehearsal mechanisms in item directed forgetting. Interestingly, emotion only impacted cue-related posterior activity, which varied depending on specific interactions between valence and arousal. Together, results suggest that the brain handles valence and arousal differently and highlights the importance of considering in a collective manner the multidimensional nature of emotion in experimentation.
History
Publication status
- Published
File Version
- Accepted version
Journal
Brain ResearchISSN
0006-8993Publisher
ElsevierExternal DOI
Issue
AVolume
1648Page range
306-316Department affiliated with
- Psychology Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2016-08-15First Open Access (FOA) Date
2017-11-10First Compliant Deposit (FCD) Date
2016-08-15Usage metrics
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