ArticleCerebral cortex (New York, N.Y. : 1991)2022
A secondary motor area contributing to interlimb coordination during visually guided locomotion in the cat.
Article in Cerebral cortex (New York, N.Y. : 1991), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Two premotor areas (6aα and 6aγ) involved in motor preparation and execution during visually guided locomotion in the cat.Cerebral cortex (New York, N.Y. : 1991) · 2025Article
- Cortical sculpting of a rhythmic motor program.bioRxiv : the preprint server for biology · 2025Article
- Exploring the Consistent Roles of Motor Areas Across Voluntary Movement and Locomotion.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2025Review
- Neural representation of self-initiated locomotion in the secondary motor cortex of mice across different environmental contexts.Communications biology · 2025Article
- Wide-field calcium imaging of cortical activation and functional connectivity in externally- and internally-driven locomotion.Nature communications · 2024Article
- Activity of cat premotor cortex neurons during visually guided stepping.Journal of neurophysiology · 2023Article
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Authors and funding
3 authors.
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Abstract
We investigated the contribution of cytoarchitectonic cortical area 4δc, in the caudal bank of the cruciate sulcus of the cat, to the control of visually guided locomotion. To do so, we recorded the activity of 114 neurons in 4δc while cats walked on a treadmill and stepped over an obstacle that advanced toward them. A total of 84/114 (74%) cells were task-related and 68/84 (81%) of these cells showed significant modulation of their discharge frequency when the contralateral limbs were the first to step over the obstacle. These latter cells included a substantial proportion (27/68 40%) that discharged between the passage of the contralateral forelimb and the contralateral hindlimb over the obstacle, suggesting a contribution of this area to interlimb coordination. We further compared the discharge in area 4δc with the activity patterns of cells in the rostral division of the same cytoarchitectonic area (4δr), which has been suggested to be a separate functional region. Despite some differences in the patterns of activity in the 2 subdivisions, we suggest that activity in each is compatible with a contribution to interlimb coordination and that they should be considered as a single functional area that contributes to both forelimb-forelimb and forelimb-hindlimb coordination.
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