Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/181522
Title: | Perceptual expectations modulate low-frequency activity: a statistical learning magnetoencephalography study |
Author: | Zhou, Ying Joey Pérez-Bellido, Alexis Haegens, Saskia de Lange, Floris P. |
Keywords: | Psicologia cognitiva Percepció visual Neurociència cognitiva Cognitive psychology Visual perception Cognitive neuroscience |
Issue Date: | 1-Apr-2020 |
Publisher: | Massachusetts Institute of Technology Press |
Abstract: | Perceptual expectations can change how a visual stimulus is perceived. Recent studies have shown mixed results in terms of whether expectations modulate sensory representations. Here, we used a statistical learning paradigm to study the temporal characteristics of perceptual expectations. We presented participants with pairs of object images organized in a predictive manner and then recorded their brain activity with magnetoencephalography while they viewed expected and unexpected image pairs on the subsequent day. We observed stronger alpha-band (7-14 Hz) activity in response to unexpected compared with expected object images. Specifically, the alpha-band modulation occurred as early as the onset of the stimuli and was most pronounced in left occipito-temporal cortex. Given that the differential response to expected versus unexpected stimuli occurred in sensory regions early in time, our results suggest that expectations modulate perceptual decision-making by changing the sensory response elicited by the stimuli. |
Note: | Reproducció del document publicat a: https://doi.org/10.1162/jocn_a_01511 |
It is part of: | Journal of Cognitive Neuroscience, 2020, vol. 32, num. 4, p. 691-702 |
URI: | http://hdl.handle.net/2445/181522 |
Related resource: | https://doi.org/10.1162/jocn_a_01511 |
ISSN: | 0898-929X |
Appears in Collections: | Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació) Publicacions de projectes de recerca finançats per la UE |
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