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    188宝金博页面版: Amygdala Damage Affects Event-Related Potentials for …

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    内容提示： r Human Brain Mapping 31:1089–1105 (2010) rAmygdala Damage Affects Event-RelatedPotentials for Fearful Faces at SpecificTime WindowsPia Rotshtein,1 ,2* Mark P. Richardson,3Joel S. Winston,2Stefan J. Kiebel,2,4Patrik Vuilleumier,5Martin Eimer,6Jon Driver,2,7and Raymond J. Dolan21School of Psychology, University of Birmingham, Edgbaston, Birmingham, United Kingdom2Wellcome Centre for Neuroimaging at UCL, University College London, London, United Kingdom3Department of Clinical Neuroscience, King’s College L...

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    r Human Brain Mapping 31:1089–1105 (2010) rAmygdala Damage Affects Event-RelatedPotentials for Fearful Faces at SpecificTime WindowsPia Rotshtein,1 ,2* Mark P. Richardson,3Joel S. Winston,2Stefan J. Kiebel,2,4Patrik Vuilleumier,5Martin Eimer,6Jon Driver,2,7and Raymond J. Dolan21School of Psychology, University of Birmingham, Edgbaston, Birmingham, United Kingdom2Wellcome Centre for Neuroimaging at UCL, University College London, London, United Kingdom3Department of Clinical Neuroscience, King’s College London Institute of Psychiatry, London,United Kingdom4Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences,Leipzig, Germany5Laboratory for Neurology and Imaging of Cognition, Department of Neuroscience and Clinic ofNeurology, University of Geneva Medical Centre, Geneva, Switzerland6School of Psychology, Birkbeck College, London, United Kingdom7UCL Institute of Cognitive Neuroscience, University College London, London, United KingdomrrAbstract: The amygdala is known to influence processing of threat-related stimuli in distant brain regions,including visual cortex. The time-course of these distant influences is unknown, although this informationis important for resolving debates over likely pathways mediating an apparent rapidity in emotional proc-essing. To address this, we recorded event-related potentials (ERPs) to seen fearful face expressions, in pre-operative patients with medial temporal lobe epilepsy who had varying degrees of amygdala pathology,plus healthy volunteers. We found that amygdala damage diminished ERPs for fearful versus neutral faceswithin the P1 time-range, $100–150 ms, and for a later component at $500–600 ms. Individual severity ofamygdala damage determined the magnitude of both these effects, consistent with a causal amygdala role.By contrast, amygdala damage did not affect explicit perception of fearful expressions nor a distinct emo-tional ERP effect at 150–250 ms. These results demonstrate two distinct time-points at which the amygdalainfluences fear processing. The data also demonstrate that while not all aspects of expression processing aredisrupted by amygdala damage, there is a crucial impact on an early P1 component. These findings are con-sistent with the existence of multiple processing stages or routes for fearful faces that vary in their depend-ence on amygdala function. Hum Brain Mapp 31:1089–1105, 2010.VC2009 Wiley-Liss, Inc.Keywords: ERP; medial temporal lobe epilepsy; emotion; P1; late-P3; SPM5rrAdditional Supporting Information may be found in the onlineversion of this article.Contract grant sponsors: Wellcome Trust Programme Grant (to RJD,JD), Wellcome Trust funding (to PR, and SK), MRC (JD and ClinicianScientist Fellowship to MPR), ESRC-MRC (Fellowship to PR); SwissNational Science Foundation (to PV), Royal Society (to ME and JD).*Correspondence to: Pia Rotshtein, School of Psychology, Univer-sity of Birmingham, Edgbaston, Birmingham B15 2TT, UK.E-mail: P. Rotshtein@bham.ac.ukReceived for publication 17 June 2009; Revised 26 August 2009;Accepted 9 September 2009DOI: 10.1002/hbm.20921Published online 16 December 2009 in Wiley InterScience (www.interscience.wiley.com).VC 2009 Wiley-Liss, Inc.

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