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  Spatial Organization of Multisensory Responses in Temporal Association Cortex

Dahl, C., Logothetis, N., & Kayser, C. (2009). Spatial Organization of Multisensory Responses in Temporal Association Cortex. The Journal of Neuroscience, 29(38), 11924-11932. doi:10.1523/JNEUROSCI.3437-09.2009.

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資料種別: 学術論文

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 作成者:
Dahl, CD1, 2, 3, 著者           
Logothetis, NK1, 3, 著者           
Kayser, C1, 3, 4, 著者           
所属:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
3Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
4Research Group Physiology of Sensory Integration, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497808              

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 要旨: Neurons in sensory cortices are often topographically organized according to their response preferences. We here show that such an organization of response preferences also exists in multisensory association cortex. Using electrophysiological mappings we probed the modality preference to auditory and visual stimuli of neurons in the superior temporal association cortex of non-human primates. We found that neurons preferring the same modality (auditory or visual) often co-occur in close spatial proximity, or occur intermingled with bimodal neurons. Neurons preferring different modalities, in contrast, occur spatially separated. This organization at the scale of individual neurons leads to extended patches of same modality preference when analyzed at the scale of millimeters, revealing larger scale regions that preferentially respond to the same modality. In addition, we find that neurons exhibiting signs of multisensory interactions, such as super- or sub-additive response summation, also occur in spatial clus
ters. Together, these results reveal a spatial organization of modality preferences in a higher association cortex, and lend support to the notion that topographical organizations might serve as a general principle of integrating information within and across the sensory modalities.

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 日付: 2009-09
 出版の状態: 出版
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 識別子(DOI, ISBNなど): DOI: 10.1523/JNEUROSCI.3437-09.2009
BibTex参照ID: 5895
 学位: -

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出版物 1

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出版物名: The Journal of Neuroscience
  その他 : J. Neurosci.
種別: 学術雑誌
 著者・編者:
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出版社, 出版地: Baltimore, MD : The Society
ページ: - 巻号: 29 (38) 通巻号: - 開始・終了ページ: 11924 - 11932 識別子(ISBN, ISSN, DOIなど): ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187