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Neuropsychologia. 2007 Mar 14;45(5):877-84. Epub 2006 Oct 6.

Amygdala control of emotion-induced forgetting and remembering: evidence from Urbach-Wiethe disease.

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1
Department of Psychiatry, University of Bonn, 53105 Bonn, Germany. rene.hurlemann@ukb.uni-bonn.de

Abstract

When presented in a neutral context, emotional items interfere with episodic encoding of temporally contiguous non-emotional items, resulting in dissociable valence-dependent retrograde and arousal-dependent anterograde modulatory effects. By studying two rare patients with congenital lipoid proteinosis (Urbach-Wiethe) and a focal disease emphasis on the basolateral amygdala (BLA), we demonstrate that this bidirectional modification of episodic encoding by emotion depends on the integrity of the amygdala, as both retrograde and anterograde modulatory effects are absent. Our findings implicate the amygdala in a neural circuitry that orchestrates rapid retrograde and anterograde regulation of episodic memory access upon criteria of behavioral significance.

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