Premotor Cortex Provides a Substrate for the Temporal Transformation of Information During the Planning of Gait Modifications.
著者
中島, 敏
(Nakajima,Toshi)
Nicolas, Fortier-Lebel
Trevor, Drew
上位タイトル
Cerebral Cortex
(2019.
3)
識別番号
ISSN
1047-3211
DOI
10.1093/cercor/bhz039
その他
PMID：30877802
抄録
We tested the hypothesis that the premotor cortex (PMC) in the cat contributes to the planning and execution of visually guided gait modifications. We analyzed single unit activity from 136 cells localized within layer V of cytoarchitectonic areas 6iffu and that part of 4δ within the ventral bank of the cruciate sulcus while cats walked on a treadmill and stepped over an obstacle that advanced toward them. We found a rich variety of discharge patterns, ranging from limb-independent cells that discharged several steps in front of the obstacle to step-related cells that discharged either during steps over the obstacle or in the steps leading up to that step. We propose that this population of task-related cells within this region of the PMC contributes to the temporal evolution of a planning process that transforms global information of the presence of an obstacle into the precise spatio-temporal limb adjustment required to negotiate that obstacle.
キーワード
cat
locomotion
single neuron recording
visually guided gait modification
voluntary movement
注記
This is a pre-copyedited, author-produced version of an article accepted for publication in [Cerebral Cortex] following peer review. The version of record [Author’s Original Version] is available online at:https://doi.org/10.1093/cercor/bhz039
