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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Temporal prediction elicits rhythmic preactivation of relevant sensory cortices

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Barne, Louise Catheryne [1, 2, 3] ; Cravo, Andre Mascioli [2] ; de Lange, Floris P. [1] ; Spaak, Eelke [1]
Total Authors: 4
[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
Total Affiliations: 3
Document type: Journal article
Source: European Journal of Neuroscience; AUG 2021.
Web of Science Citations: 0

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)

FAPESP's process: 17/25161-8 - The representation of temporal information in neural activity
Grantee:André Mascioli Cravo
Support type: Regular Research Grants
FAPESP's process: 18/08844-7 - Neural mechanisms of temporal anticipation in vision and audition.
Grantee:Louise Catheryne Barne
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 16/04258-0 - Attention and expectation effects on neural processing
Grantee:Louise Catheryne Barne
Support type: Scholarships in Brazil - Doctorate