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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Temporal prediction elicits rhythmic preactivation of relevant sensory cortices

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Autor(es):
Barne, Louise Catheryne [1, 2, 3] ; Cravo, Andre Mascioli [2] ; de Lange, Floris P. [1] ; Spaak, Eelke [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Radboud Univ Nijmegen, Donders Inst Brain Cognit & Behav, Nijmegen - Netherlands
[2] Univ Fed ABC UFABC, Ctr Math Comp & Cognit, Sao Bernardo Do Campo, SP - Brazil
[3] Off Natl Etud & Rech Aerosp, Dept Traitement Informat & Syst, Salon De Provence - France
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: European Journal of Neuroscience; AUG 2021.
Citações Web of Science: 0
Resumo

Being able to anticipate events before they happen facilitates stimulus processing. The anticipation of the contents of events is thought to be implemented by the elicitation of prestimulus templates in sensory cortex. In contrast, the anticipation of the timing of events is typically associated with entrainment of neural oscillations. It is so far unknown whether and in which conditions temporal expectations interact with feature-based expectations, and, consequently, whether entrainment modulates the generation of content-specific sensory templates. In this study, we investigated the role of temporal expectations in a sensory discrimination task. We presented participants with rhythmically interleaved visual and auditory streams of relevant and irrelevant stimuli while measuring neural activity using magnetoencephalography. We found no evidence that rhythmic stimulation induced prestimulus feature templates. However, we did observe clear anticipatory rhythmic preactivation of the relevant sensory cortices. This oscillatory activity peaked at behaviourally relevant, in-phase, intervals. Our results suggest that temporal expectations about stimulus features do not behave similarly to explicitly cued, nonrhythmic, expectations, yet elicit a distinct form of modality-specific preactivation. (AU)

Processo FAPESP: 17/25161-8 - A representação de informações temporais na atividade neural
Beneficiário:André Mascioli Cravo
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 18/08844-7 - Mecanismos neurais da antecipação temporal em visão e audição.
Beneficiário:Louise Catheryne Barne
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Processo FAPESP: 16/04258-0 - Efeitos da atenção e da expectativa no processamento neural
Beneficiário:Louise Catheryne Barne
Linha de fomento: Bolsas no Brasil - Doutorado