ArticleJournal of neurophysiology2012
Pyramidal tract neurons receptive to different forelimb joints act differently during locomotion.
Article in Journal of neurophysiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 18 citations in OpenAlex.
- Activity of cat premotor cortex neurons during visually guided stepping.Journal of neurophysiology · 2023Article
- Signals from posterior parietal area 5 to motor cortex during locomotion.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Neuronal activity reorganization in motor cortex for successful locomotion after a lesion in the ventrolateral thalamus.Journal of neurophysiology · 2022Article
- Contribution of the ventrolateral thalamus to the locomotion-related activity of motor cortex.Journal of neurophysiology · 2020Article
- Context-dependent limb movement encoding in neuronal populations of motor cortex.Nature communications · 2019Article
- The role of intersegmental dynamics in coordination of the forelimb joints during unperturbed and perturbed skilled locomotion.Journal of neurophysiology · 2018Article
- Known and unexpected constraints evoke different kinematic, muscle, and motor cortical neuron responses during locomotion.The European journal of neuroscience · 2015Article
- Accurate stepping on a narrow path: mechanics, EMG, and motor cortex activity in the cat.Journal of neurophysiology · 2015Article
- Body stability and muscle and motor cortex activity during walking with wide stance.Journal of neurophysiology · 2014Article
- Burst firing of neurons in the thalamic reticular nucleus during locomotion.Journal of neurophysiology · 2014Article
- Rapid and persistent impairments of the forelimb motor representations following cervical deafferentation in rats.The European journal of neuroscience · 2013Article
- Effect of light on the activity of motor cortex neurons during locomotion.Behavioural brain research · 2013Article
- Differential responses of fast- and slow-conducting pyramidal tract neurons to changes in accuracy demands during locomotion.The Journal of physiology · 2013Article
- Differential joint-specific corticospinal tract projections within the cervical enlargement.PloS one · 2013Article
- Distinct Thalamo-Cortical Controls for Shoulder, Elbow, and Wrist during Locomotion.Frontiers in computational neuroscience · 2013Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
During locomotion, motor cortical neurons projecting to the pyramidal tract (PTNs) discharge in close relation to strides. How their discharges vary based on the part of the body they influence is not well understood. We addressed this question with regard to joints of the forelimb in the cat. During simple and ladder locomotion, we compared the activity of four groups of PTNs with somatosensory receptive fields involving different forelimb joints: 1) 45 PTNs receptive to movements of shoulder, 2) 30 PTNs receptive to movements of elbow, 3) 40 PTNs receptive to movements of wrist, and 4) 30 nonresponsive PTNs. In the motor cortex, a relationship exists between the location of the source of afferent input and the target for motor output. On the basis of this relationship, we inferred the forelimb joint that a PTN influences from its somatosensory receptive field. We found that different PTNs tended to discharge differently during locomotion. During simple locomotion shoulder-related PTNs were most active during late stance/early swing, and upon transition from simple to ladder locomotion they often increased activity and stride-related modulation while reducing discharge duration. Elbow-related PTNs were most active during late swing/early stance and typically did not change activity, modulation, or discharge duration on the ladder. Wrist-related PTNs were most active during swing and upon transition to the ladder often decreased activity and increased modulation while reducing discharge duration. These data suggest that during locomotion the motor cortex uses distinct mechanisms to control the shoulder, elbow, and wrist.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.