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Effects of Attention and Emotion on Repetition Priming and their Modulation by Cholinergic Enhancement

By Paul Bentley, Patrik Vuilleumier, Christiane M. Thiel, Jon Driver and Raymond J. Dolan

Abstract

We examined whether behavioural and neural effects of repeating faces are modulated by independent factors of selective attention, emotion and cholinergic enhancement, during functional MRI. Face repetition occurred either between task-relevant (spatially attended) or task-irrelevant (unattended) stimuli; faces could be fearful or neutral; subjects received either placebo or physostigmine. Under placebo, an RT advantage occurred with repetition (i.e. priming) that did not differ between levels of attention, but was attenuated with emotion. Inferior temporo-occipital corte

Topics: Abbreviated Title, Attention, Emotion and Cholinergic Effects on Priming Key Words, fMRI, repetition decrease, physostigmine, selective attention. No. of Text Pages, 39 (US Letter) No. of Figs, 5
Year: 2003
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.7175
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