Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/20196
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Positive emotion can protect against source memory impairment
Authors: MacKenzie, Graham
Powell, Tim F
Donaldson, David
Contact Email: graham.mackenzie@stir.ac.uk
Keywords: Emotion
Valence
Source memory
Memory impairment
Recollection
Issue Date: 2015
Publisher: Taylor and Francis
Citation: MacKenzie G, Powell TF & Donaldson D (2015) Positive emotion can protect against source memory impairment, Cognition and Emotion, 29 (2), pp. 236-250.
Abstract: Despite widespread belief that memory is enhanced by emotion, evidence also suggests that emotion can impair memory. Here we test predictions inspired by object-based binding theory, which states that memory enhancement or impairment depends on the nature of the information to be retrieved. We investigated emotional memory in the context of source retrieval, using images of scenes that were negative, neutral or positive in valence. At study each scene was paired with a colour and during retrieval participants reported the source colour for recognised scenes. Critically, we isolated effects of valence by equating stimulus arousal across conditions. In Experiment 1 colour borders surrounded scenes at study: memory impairment was found for both negative and positive scenes. Experiment 2 used colours superimposed over scenes at study: valence affected source retrieval, with memory impairment for negative scenes only. These findings challenge current theories of emotional memory by showing that emotion can impair memory for both intrinsic and extrinsic source information, even when arousal is equated between emotional and neutral stimuli, and by dissociating the effects of positive and negative emotion on episodic memory retrieval.
Type: Journal Article
URI: http://hdl.handle.net/1893/20196
DOI Link: http://dx.doi.org/10.1080/02699931.2014.911145
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Psychology
University of Edinburgh
Psychology

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