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Hand position fields of neurons in the premotor cortex of macaques during natural reaching by Sheng-Hao Cao & Xin-Yong Han & Zhi-Ping Zhao & Jian-Wen Gu & Tian-Zi Jiang & Shan Yu instant download

  • SKU: EBN-239948966
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Instant download (eBook) Hand position fields of neurons in the premotor cortex of macaques during natural reaching after payment.
Authors:Sheng-Hao Cao & Xin-Yong Han & Zhi-Ping Zhao & Jian-Wen Gu & Tian-Zi Jiang & Shan Yu
Pages:updating ...
Year:2025
Publisher:x
Language:english
File Size:1.33 MB
Format:pdf
Categories: Ebooks

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Hand position fields of neurons in the premotor cortex of macaques during natural reaching by Sheng-Hao Cao & Xin-Yong Han & Zhi-Ping Zhao & Jian-Wen Gu & Tian-Zi Jiang & Shan Yu instant download

Nature Communications, doi:10.1038/s41467-025-58786-3

While hippocampus represents spatial information through place cells forbody navigation, whether motor areas employ a similar framework to guidehand reaching remains unknown. Here, we investigate tuning properties indorsal premotor cortex (PMd) during naturalistic reach-and-grasp tasks in fourmonkeys. We find that 22% (132/601) of PMd neurons increase firing rates whenthe monkey’s hand occupies specific positions in space, forming the positionfields. These cells represent the hand position highly efficiently, achieving~80% accuracy for decoding hand trajectories with only 50 most dedicatedposition tuned cells ( ~ 10% of all recorded neurons). The hand position is corepresented with hand moving direction, speed, and reward location in thesame population of PMd neurons, forming a mixed-selective framework tointegrate positional and kinematic information. Our findings suggest field-likepositional coding may be a mechanism shared across brain regions for spatialrepresentation in goal-directed movements, including body navigation andforelimb reaching.

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