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  Hand shape selection in pantomimed grasping: Interaction between the dorsal and the ventral visual streams and convergence on the ventral premotor area

Makuuchi, M., Someya, Y., Ogawa, S., & Takayama, Y. (2012). Hand shape selection in pantomimed grasping: Interaction between the dorsal and the ventral visual streams and convergence on the ventral premotor area. Human Brain Mapping, 33(8), 1821-1833. doi:10.1002/hbm.21323.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-0BB7-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-CDED-C
Genre: Journal Article

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 Creators:
Makuuchi, Michiru1, 2, Author              
Someya, Yoshiaki3, Author
Ogawa, Seiji3, Author
Takayama, Yoshihiro2, Author
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2Department of Speech Physiology, Graduate School of Medicine, University of Tokyo, Japan, ou_persistent22              
3Hamano Life Science Research Foundation, Ogawa Laboratories for Brain, Function Research, Tokyo, Japan, ou_persistent22              

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Free keywords: Functional magnetic resonance imaging; Grip selection; Object recognition; Effective connectivity
 Abstract: In visually guided grasping, possible hand shapes are computed from the geometrical features of the object, while prior knowledge about the object and the goal of the action influence both the computation and the selection of the hand shape. We investigated the system dynamics of the human brain for the pantomiming of grasping with two aspects accentuated. One is object recognition, with the use of objects for daily use. The subjects mimed grasping movements appropriate for an object presented in a photograph either by precision or power grip. The other is the selection of grip hand shape. We manipulated the selection demands for the grip hand shape by having the subjects use the same or different grip type in the second presentation of the identical object. Effective connectivity analysis revealed that the increased selection demands enhance the interaction between the anterior intraparietal sulcus (AIP) and posterior inferior temporal gyrus (pITG), and drive the converging causal influences from the AIP, pITG, and dorsolateral prefrontal cortex to the ventral premotor area (PMv). These results suggest that the dorsal and ventral visual areas interact in the pantomiming of grasping, while the PMv integrates the neural information of different regions to select the hand posture. The present study proposes system dynamics in visually guided movement toward meaningful objects, but further research is needed to examine if the same dynamics is found also in real grasping.

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Language(s): eng - English
 Dates: 2011-03-012011-01-272011-03-112011-07-072012-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/hbm.21323
PMID: 21739528
PMC: PMC3193865
Other: Epub 2011
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Title: Human Brain Mapping
Source Genre: Journal
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Publ. Info: New York : Wiley-Liss
Pages: - Volume / Issue: 33 (8) Sequence Number: - Start / End Page: 1821 - 1833 Identifier: ISSN: 1065-9471
CoNE: https://pure.mpg.de/cone/journals/resource/954925601686