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Original Articles

Emotion-induced modulation of recognition memory decisions in a Go/NoGo task: Response bias or memory bias?

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Pages 761-776 | Received 04 Jul 2005, Published online: 24 Jun 2008
 

Abstract

In recognition memory tests for words, items with negative emotional meaning are more often classified as “old” compared to neutral items, whether or not they are in fact old. Two accounts for this bias have been offered: One proposes that emotions disrupt retrieval and response monitoring processes (executive control account), the other proposes that emotions cause illusory feelings of remembering (memory bias account). We addressed this issue by varying the target signal in a Go/NoGo variant of a recognition memory task for negative, neutral, and positive words and faces: One group of participants was asked to respond to old items whereas the other group was asked to respond to new items. Results showed that the “Go-for-old” group showed the typical emotion-induced response bias shift for both positive and negative words, while the “Go-for-new” group showed the opposite pattern. Results were nonsignificant for faces, but went into the same direction. The findings are clearly inconsistent with the executive control account and speak for a genuine memory illusion induced by emotional arousal.

Acknowledgements

This work was supported by grant Wi 1582/2–1 from the German Research Foundation (Deutsche Forschungsgemeinschaft) to SW.

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