Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex
The posterior parietal cortex (PPC) of humans and non-human primates plays a key role in the sensory and motor transformations required to guide motor actions to objects of interest in the environment. Despite decades of research, the anatomical and functional organization of this region is still a...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-03-01
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| Series: | Frontiers in Neural Circuits |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fncir.2019.00015/full |
| _version_ | 1818921915098595328 |
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| author | Kostas Hadjidimitrakis Kostas Hadjidimitrakis Sophia Bakola Sophia Bakola Yan T. Wong Yan T. Wong Maureen A. Hagan Maureen A. Hagan |
| author_facet | Kostas Hadjidimitrakis Kostas Hadjidimitrakis Sophia Bakola Sophia Bakola Yan T. Wong Yan T. Wong Maureen A. Hagan Maureen A. Hagan |
| author_sort | Kostas Hadjidimitrakis |
| collection | DOAJ |
| description | The posterior parietal cortex (PPC) of humans and non-human primates plays a key role in the sensory and motor transformations required to guide motor actions to objects of interest in the environment. Despite decades of research, the anatomical and functional organization of this region is still a matter of contention. It is generally accepted that specialized parietal subregions and their functional counterparts in the frontal cortex participate in distinct segregated networks related to eye, arm and hand movements. However, experimental evidence obtained primarily from single neuron recording studies in non-human primates has demonstrated a rich mixing of signals processed by parietal neurons, calling into question ideas for a strict functional specialization. Here, we present a brief account of this line of research together with the basic trends in the anatomical connectivity patterns of the parietal subregions. We review, the evidence related to the functional communication between subregions of the PPC and describe progress towards using parietal neuron activity in neuroprosthetic applications. Recent literature suggests a role for the PPC not as a constellation of specialized functional subdomains, but as a dynamic network of sensorimotor loci that combine multiple signals and work in concert to guide motor behavior. |
| first_indexed | 2024-12-20T01:45:13Z |
| format | Article |
| id | doaj.art-b5d3e3de7b2b4578aca5246aa82f6139 |
| institution | Directory Open Access Journal |
| issn | 1662-5110 |
| language | English |
| last_indexed | 2024-12-20T01:45:13Z |
| publishDate | 2019-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neural Circuits |
| spelling | doaj.art-b5d3e3de7b2b4578aca5246aa82f61392022-12-21T19:57:48ZengFrontiers Media S.A.Frontiers in Neural Circuits1662-51102019-03-011310.3389/fncir.2019.00015426944Mixed Spatial and Movement Representations in the Primate Posterior Parietal CortexKostas Hadjidimitrakis0Kostas Hadjidimitrakis1Sophia Bakola2Sophia Bakola3Yan T. Wong4Yan T. Wong5Maureen A. Hagan6Maureen A. Hagan7Department of Physiology, Monash University, Clayton, VIC, AustraliaAustralian Research Council Centre of Excellence for Integrative Brain Function, Monash University Node, Clayton, VIC, AustraliaDepartment of Physiology, Monash University, Clayton, VIC, AustraliaAustralian Research Council Centre of Excellence for Integrative Brain Function, Monash University Node, Clayton, VIC, AustraliaDepartment of Physiology, Monash University, Clayton, VIC, AustraliaDepartment of Electrical and Computer Science Engineering, Monash University, Clayton, VIC, AustraliaDepartment of Physiology, Monash University, Clayton, VIC, AustraliaAustralian Research Council Centre of Excellence for Integrative Brain Function, Monash University Node, Clayton, VIC, AustraliaThe posterior parietal cortex (PPC) of humans and non-human primates plays a key role in the sensory and motor transformations required to guide motor actions to objects of interest in the environment. Despite decades of research, the anatomical and functional organization of this region is still a matter of contention. It is generally accepted that specialized parietal subregions and their functional counterparts in the frontal cortex participate in distinct segregated networks related to eye, arm and hand movements. However, experimental evidence obtained primarily from single neuron recording studies in non-human primates has demonstrated a rich mixing of signals processed by parietal neurons, calling into question ideas for a strict functional specialization. Here, we present a brief account of this line of research together with the basic trends in the anatomical connectivity patterns of the parietal subregions. We review, the evidence related to the functional communication between subregions of the PPC and describe progress towards using parietal neuron activity in neuroprosthetic applications. Recent literature suggests a role for the PPC not as a constellation of specialized functional subdomains, but as a dynamic network of sensorimotor loci that combine multiple signals and work in concert to guide motor behavior.https://www.frontiersin.org/article/10.3389/fncir.2019.00015/fulleye movementsreachinggraspingPPCposterior parietal cortexmovement planning |
| spellingShingle | Kostas Hadjidimitrakis Kostas Hadjidimitrakis Sophia Bakola Sophia Bakola Yan T. Wong Yan T. Wong Maureen A. Hagan Maureen A. Hagan Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex Frontiers in Neural Circuits eye movements reaching grasping PPC posterior parietal cortex movement planning |
| title | Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex |
| title_full | Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex |
| title_fullStr | Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex |
| title_full_unstemmed | Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex |
| title_short | Mixed Spatial and Movement Representations in the Primate Posterior Parietal Cortex |
| title_sort | mixed spatial and movement representations in the primate posterior parietal cortex |
| topic | eye movements reaching grasping PPC posterior parietal cortex movement planning |
| url | https://www.frontiersin.org/article/10.3389/fncir.2019.00015/full |
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