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http://hdl.handle.net/10071/15633
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Title: Emotion processing in words: a test of the neural re-use hypothesis using surface and intracranial EEG
Authors: Ponz, A.
Montant, M.
Liegeois-Chauvel, C.
Silva, C.
Braun, M.
Jacobs, A. M.
Ziegler, J. C.
Keywords: Reading
Emotion
Disgust
ERP
Word recognition
Issue Date: 2014
Publisher: Oxford University Press
Abstract: This study investigates the spatiotemporal brain dynamics of emotional information processing during reading using a combination of surface and intracranial electroencephalography (EEG). Two different theoretical views were opposed. According to the standard psycholinguistic perspective, emotional responses to words are generated within the reading network itself subsequent to semantic activation. According to the neural re-use perspective, brain regions that are involved in processing emotional information contained in other stimuli (faces, pictures, smells) might be in charge of the processing of emotional information in words as well. We focused on a specific emotion-disgust-which has a clear locus in the brain, the anterior insula. Surface EEG showed differences between disgust and neutral words as early as 200 ms. Source localization suggested a cortical generator of the emotion effect in the left anterior insula. These findings were corroborated through the intracranial recordings of two epileptic patients with depth electrodes in insular and orbitofrontal areas. Both electrodes showed effects of disgust in reading as early as 200 ms. The early emotion effect in a brain region (insula) that responds to specific emotions in a variety of situations and stimuli clearly challenges classic sequential theories of reading in favor of the neural re-use perspective.
Description: WOS:000336489000008 (Nº de Acesso Web of Science)
Peer reviewed: yes
URI: https://ciencia.iscte-iul.pt/id/ci-pub-47615
http://hdl.handle.net/10071/15633
DOI: 10.1093/scan/nst034
ISSN: 1749-5016
Appears in Collections:CIS-RI - Artigos em revistas científicas internacionais com arbitragem científica

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