Abstract:
:We continuously perceive objects in the world through multiple sensory channels. In this study, we investigated the convergence of information from different sensory streams within the cerebral cortex. We presented volunteers with three common objects via three different modalities-sight, sound, and touch-and used multivariate pattern analysis of functional magnetic resonance imaging data to map the cortical regions containing information about the identity of the objects. We could reliably predict which of the three stimuli a subject had seen, heard, or touched from the pattern of neural activity in the corresponding early sensory cortices. Intramodal classification was also successful in large portions of the cerebral cortex beyond the primary areas, with multiple regions showing convergence of information from two or all three modalities. Using crossmodal classification, we also searched for brain regions that would represent objects in a similar fashion across different modalities of presentation. We trained a classifier to distinguish objects presented in one modality and then tested it on the same objects presented in a different modality. We detected audiovisual invariance in the right temporo-occipital junction, audiotactile invariance in the left postcentral gyrus and parietal operculum, and visuotactile invariance in the right postcentral and supramarginal gyri. Our maps of multisensory convergence and crossmodal generalization reveal the underlying organization of the association cortices, and may be related to the neural basis for mental concepts.
journal_name
Hum Brain Mappjournal_title
Human brain mappingauthors
Man K,Damasio A,Meyer K,Kaplan JTdoi
10.1002/hbm.22867subject
Has Abstractpub_date
2015-09-01 00:00:00pages
3629-40issue
9eissn
1065-9471issn
1097-0193journal_volume
36pub_type
杂志文章abstract::White matter (WM) microstructure, as determined by diffusion tensor imaging (DTI), is increasingly recognized as an important determinant of cognitive function and is also altered in neuropsychiatric disorders. Little is known about genetic and environmental influences on WM microstructure, especially in early childho...
journal_title:Human brain mapping
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journal_title:Human brain mapping
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24685
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journal_title:Human brain mapping
pub_type: 杂志文章
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更新日期:2014-09-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
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更新日期:2018-11-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章,多中心研究
doi:10.1002/hbm.23824
更新日期:2017-12-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24554
更新日期:2019-06-15 00:00:00
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pub_type: 杂志文章
doi:10.1002/hbm.23448
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pub_type: 杂志文章,多中心研究,随机对照试验
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journal_title:Human brain mapping
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23418
更新日期:2017-02-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24690
更新日期:2019-10-01 00:00:00
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journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23151
更新日期:2016-05-01 00:00:00
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journal_title:Human brain mapping
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