Hauptseite > Publikationsdatenbank > Modality-Specific Perceptual Expectations Selectively Modulate Baseline Activity in Auditory, Somatosensory, and Visual Cortices > print

001     15250
005     20210129210623.0
024 7 _ |2 pmid
|a pmid:21527785
024 7 _ |2 DOI
|a 10.1093/cercor/bhr083
024 7 _ |2 WOS
|a WOS:000296977900018
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037 _ _ |a PreJuSER-15250
041 _ _ |a eng
082 _ _ |a 610
084 _ _ |2 WoS
|a Neurosciences
100 1 _ |0 P:(DE-Juel1)131693
|a Langner, R.
|b 0
|u FZJ
245 _ _ |a Modality-Specific Perceptual Expectations Selectively Modulate Baseline Activity in Auditory, Somatosensory, and Visual Cortices
260 _ _ |a Oxford
|b Oxford Univ. Press
|c 2011
300 _ _ |a 2850 - 2862
336 7 _ |0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
|a Journal Article
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|a Output Types/Journal article
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|2 EndNote
|a Journal Article
336 7 _ |2 BibTeX
|a ARTICLE
336 7 _ |2 ORCID
|a JOURNAL_ARTICLE
336 7 _ |2 DRIVER
|a article
440 _ 0 |0 1171
|a Cerebral Cortex
|v 21
|x 1047-3211
|y 12
500 _ _ |a Deutsche Forschungsgemeinschaft (IRTG 1328 to R. L., K. W., and S. B. E.); Human Brain Project (R01-MH074457-01A1 to S. B. E.); Initiative and Networking Fund of the Helmholtz Association within the Helmholtz Alliance on Systems Biology (Human Brain Model to S. B. E).
520 _ _ |a Valid expectations are known to improve target detection, but the preparatory attentional mechanisms underlying this perceptual facilitation remain an open issue. Using functional magnetic resonance imaging, we show here that expecting auditory, tactile, or visual targets, in the absence of stimulation, selectively increased baseline activity in corresponding sensory cortices and decreased activity in irrelevant ones. Regardless of sensory modality, expectancy activated bilateral premotor and posterior parietal areas, supplementary motor area as well as right anterior insula and right middle frontal gyrus. The bilateral putamen was sensitive to the modality specificity of expectations during the unexpected omission of targets. Thus, across modalities, detection improvement arising from selectively directing attention to a sensory modality appears mediated through transient changes in pretarget activity. This flexible advance modulation of baseline activity in sensory cortices resolves ambiguities among previous studies unable to discriminate modality-specific preparatory activity from attentional modulation of stimulus processing. Our results agree with predictive-coding models, which suggest that these expectancy-related changes reflect top-down biases--presumably originating from the observed supramodal frontoparietal network--that modulate signal-detection sensitivity by differentially modifying background activity (i.e., noise level) in different input channels. The putamen appears to code omission-related Bayesian "surprise" that depends on the specificity of predictions.
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|c FUEK409
|a Funktion und Dysfunktion des Nervensystems (FUEK409)
536 _ _ |0 G:(DE-HGF)POF2-89573
|a 89573 - Neuroimaging (POF2-89573)
|c POF2-89573
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588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Anticipation, Psychological: physiology
650 _ 2 |2 MeSH
|a Attention: physiology
650 _ 2 |2 MeSH
|a Auditory Cortex: physiology
650 _ 2 |2 MeSH
|a Brain Mapping
650 _ 2 |2 MeSH
|a Female
650 _ 2 |2 MeSH
|a Humans
650 _ 2 |2 MeSH
|a Image Interpretation, Computer-Assisted
650 _ 2 |2 MeSH
|a Magnetic Resonance Imaging
650 _ 2 |2 MeSH
|a Male
650 _ 2 |2 MeSH
|a Reaction Time: physiology
650 _ 2 |2 MeSH
|a Somatosensory Cortex: physiology
650 _ 2 |2 MeSH
|a Visual Cortex: physiology
650 _ 2 |2 MeSH
|a Young Adult
650 _ 7 |2 WoSType
|a J
653 2 0 |2 Author
|a fMRI
653 2 0 |2 Author
|a intermodal attention
653 2 0 |2 Author
|a multimodal stimulus anticipation
653 2 0 |2 Author
|a predictive coding
653 2 0 |2 Author
|a surprise
700 1 _ |0 P:(DE-HGF)0
|a Kellermann, T.
|b 1
700 1 _ |0 P:(DE-Juel1)VDB131
|a Boers, F.
|b 2
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Sturm, W.
|b 3
700 1 _ |0 P:(DE-HGF)0
|a Willmes, K.
|b 4
700 1 _ |0 P:(DE-Juel1)131678
|a Eickhoff, S.B.
|b 5
|u FZJ
773 _ _ |0 PERI:(DE-600)1483485-6
|a 10.1093/cercor/bhr083
|g Vol. 21, p. 2850 - 2862
|p 2850 - 2862
|q 21<2850 - 2862
|t Cerebral cortex
|v 21
|x 1047-3211
|y 2011
856 7 _ |u http://dx.doi.org/10.1093/cercor/bhr083
909 C O |o oai:juser.fz-juelich.de:15250
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