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Interactions between dorsal and ventral streams for controlling skilled grasp
The two visual systems hypothesis suggests processing of visual information into two distinct routes in the brain: a dorsal stream for the control of actions and a ventral stream for the identification of objects. Recently, increasing evidence has shown that the dorsal and ventral streams are not st...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pergamon Press
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678292/ https://www.ncbi.nlm.nih.gov/pubmed/26169317 http://dx.doi.org/10.1016/j.neuropsychologia.2015.07.010 |
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author | van Polanen, Vonne Davare, Marco |
author_facet | van Polanen, Vonne Davare, Marco |
author_sort | van Polanen, Vonne |
collection | PubMed |
description | The two visual systems hypothesis suggests processing of visual information into two distinct routes in the brain: a dorsal stream for the control of actions and a ventral stream for the identification of objects. Recently, increasing evidence has shown that the dorsal and ventral streams are not strictly independent, but do interact with each other. In this paper, we argue that the interactions between dorsal and ventral streams are important for controlling complex object-oriented hand movements, especially skilled grasp. Anatomical studies have reported the existence of direct connections between dorsal and ventral stream areas. These physiological interconnections appear to be gradually more active as the precision demands of the grasp become higher. It is hypothesised that the dorsal stream needs to retrieve detailed information about object identity, stored in ventral stream areas, when the object properties require complex fine-tuning of the grasp. In turn, the ventral stream might receive up to date grasp-related information from dorsal stream areas to refine the object internal representation. Future research will provide direct evidence for which specific areas of the two streams interact, the timing of their interactions and in which behavioural context they occur. |
format | Online Article Text |
id | pubmed-4678292 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Pergamon Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-46782922016-01-04 Interactions between dorsal and ventral streams for controlling skilled grasp van Polanen, Vonne Davare, Marco Neuropsychologia Article The two visual systems hypothesis suggests processing of visual information into two distinct routes in the brain: a dorsal stream for the control of actions and a ventral stream for the identification of objects. Recently, increasing evidence has shown that the dorsal and ventral streams are not strictly independent, but do interact with each other. In this paper, we argue that the interactions between dorsal and ventral streams are important for controlling complex object-oriented hand movements, especially skilled grasp. Anatomical studies have reported the existence of direct connections between dorsal and ventral stream areas. These physiological interconnections appear to be gradually more active as the precision demands of the grasp become higher. It is hypothesised that the dorsal stream needs to retrieve detailed information about object identity, stored in ventral stream areas, when the object properties require complex fine-tuning of the grasp. In turn, the ventral stream might receive up to date grasp-related information from dorsal stream areas to refine the object internal representation. Future research will provide direct evidence for which specific areas of the two streams interact, the timing of their interactions and in which behavioural context they occur. Pergamon Press 2015-12 /pmc/articles/PMC4678292/ /pubmed/26169317 http://dx.doi.org/10.1016/j.neuropsychologia.2015.07.010 Text en © 2015 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article van Polanen, Vonne Davare, Marco Interactions between dorsal and ventral streams for controlling skilled grasp |
title | Interactions between dorsal and ventral streams for controlling skilled grasp |
title_full | Interactions between dorsal and ventral streams for controlling skilled grasp |
title_fullStr | Interactions between dorsal and ventral streams for controlling skilled grasp |
title_full_unstemmed | Interactions between dorsal and ventral streams for controlling skilled grasp |
title_short | Interactions between dorsal and ventral streams for controlling skilled grasp |
title_sort | interactions between dorsal and ventral streams for controlling skilled grasp |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678292/ https://www.ncbi.nlm.nih.gov/pubmed/26169317 http://dx.doi.org/10.1016/j.neuropsychologia.2015.07.010 |
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