Steady-state and dynamic network modes for perceptual expectation
DC Field | Value | Language |
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dc.contributor.author | Choi, Uk-Su | - |
dc.contributor.author | Sung, Yul-Wan | - |
dc.contributor.author | Ogawa, Seiji | - |
dc.date.available | 2020-02-27T19:44:52Z | - |
dc.date.created | 2020-02-07 | - |
dc.date.issued | 2017-01-12 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/6498 | - |
dc.description.abstract | Perceptual expectation can attenuate repetition suppression, the stimulus-induced neuronal response generated by repeated stimulation, suggesting that repetition suppression is a top-down modulatory phenomenon. However, it is still unclear which high-level brain areas are involved and how they interact with low-level brain areas. Further, the temporal range over which perceptual expectation can effectively attenuate repetition suppression effects remains unclear. To elucidate the details of this top-down modulatory process, we used two short and long inter-stimulus intervals for a perceptual expectation paradigm of paired stimulation. We found that top-down modulation enhanced the response to the unexpected stimulus when repetition suppression was weak and that the effect disappeared at 1,000 ms prior to stimulus exposure. The high-level areas involved in this process included the left inferior frontal gyrus (IFG_L) and left parietal lobule (IPL_L). We also found two systems providing modulatory input to the right fusiform face area (FFA_R): one from IFG_L and the other from IPL_L. Most importantly, we identified two states of networks through which perceptual expectation modulates sensory responses: one is a dynamic state and the other is a steady state. Our results provide the first functional magnetic resonance imaging (fMRI) evidence of temporally nested networks in brain processing. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.relation.isPartOf | SCIENTIFIC REPORTS | - |
dc.subject | STIMULUS-SPECIFIC ADAPTATION | - |
dc.subject | FMRI REPETITION SUPPRESSION | - |
dc.subject | WORKING-MEMORY | - |
dc.subject | TOP-DOWN | - |
dc.subject | NEURAL SYSTEMS | - |
dc.subject | ATTENTION | - |
dc.subject | PROBABILITY | - |
dc.subject | BRAIN | - |
dc.subject | CORTEX | - |
dc.subject | PERFORMANCE | - |
dc.title | Steady-state and dynamic network modes for perceptual expectation | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000391666200001 | - |
dc.identifier.doi | 10.1038/srep40626 | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.7 | - |
dc.identifier.scopusid | 2-s2.0-85009508218 | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 7 | - |
dc.contributor.affiliatedAuthor | Choi, Uk-Su | - |
dc.contributor.affiliatedAuthor | Ogawa, Seiji | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | STIMULUS-SPECIFIC ADAPTATION | - |
dc.subject.keywordPlus | FMRI REPETITION SUPPRESSION | - |
dc.subject.keywordPlus | WORKING-MEMORY | - |
dc.subject.keywordPlus | TOP-DOWN | - |
dc.subject.keywordPlus | NEURAL SYSTEMS | - |
dc.subject.keywordPlus | ATTENTION | - |
dc.subject.keywordPlus | PROBABILITY | - |
dc.subject.keywordPlus | BRAIN | - |
dc.subject.keywordPlus | CORTEX | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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