Setbacks, pleasant surprises and the simply unexpected: brainwave responses in a language comprehension task

Moreno, Eva M. y Rivera, Irene C. . () Setbacks, pleasant surprises and the simply unexpected: brainwave responses in a language comprehension task. Social Cognitive and Affective Neuroscience

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Título Setbacks, pleasant surprises and the simply unexpected: brainwave responses in a language comprehension task
Autor(es) Moreno, Eva M.
Rivera, Irene C.
Materia(s) Psicología
Abstract This event-related potential (ERP) study explored the behaviour of N400 and post-N400 frontal positivities (pN400FP) during the processing of emotionally biased and unbiased sentences that randomly led to highly expected or unexpected word outcomes. Unexpected outcomes (as determined by sentence completion written tests) elicited significantly larger N400 and pN400FP responses than did highly expected outcomes. Emotionally neutral outcomes triggered a significant N400 expectancy effect across all scalp locations, including frontal sites, whereas emotionally biased outcomes elicited a significant N400 effect localized to posterior scalp regions. The subsequent pN400FP effect was significant only when emotional expectations were violated and not when emotionally neutral sentences led to unexpected outcomes. This frontal effect, linked to the processing of lexically unexpected but plausible words, showed larger amplitudes for unexpected pleasant surprises than for unexpected setbacks. Our results support the view that the pN400FP response to unexpected verbal outcomes entails more than a generic reaction to a lexical misprediction. Rather, they favour the hypothesis that the affective content of the sentence being processed influences the effort needed to override a lexical prediction, such that more effort is needed to override a pessimistic prediction than an optimistic one.
Palabras clave N400
event-related potentials
post-N400 frontal positivity
prediction
emotional sentence processing
Editor(es) Oxford Academic
Identificador bibliuned:DptoPEyE-FPSI-Articulos-Emoreno-0005
http://e-spacio.uned.es/fez/view/bibliuned:DptoPEyE-FPSI-Articulos-Emoreno-0005
DOI - identifier doi:10.1093/scan/nst066
ISSN - identifier 1749-5024
Nombre de la revista Social Cognitive and Affective Neuroscience
Número de Volumen Jul;9(7)
Número de Issue 9(7):
Página inicial 991
Página final 999
Publicado en la Revista Social Cognitive and Affective Neuroscience
Idioma eng
Versión de la publicación publishedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales The registered version of this article, first published in Social Cognitive and Affective Neuroscience, is available online at the publisher's website: Oxford Academic, https://doi.org/10.1093/scan/nst066

 
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Creado: Wed, 24 Jan 2024, 00:09:40 CET