Journal
EXPERIMENTAL BRAIN RESEARCH
Volume 218, Issue 3, Pages 341-359Publisher
SPRINGER
DOI: 10.1007/s00221-012-3041-8
Keywords
Reflex; Optimal feedback control; Long-latency; Motor cortex; Stretch response
Categories
Funding
- Canadian Institute of Health Research (CIHR)
- National Science and Engineering Research Council of Canada (NSERC)
- Human Frontier Science Program
Ask authors/readers for more resources
There has traditionally been a separation between voluntary control processes and the fast feedback responses which follow mechanical perturbations (i.e., stretch reflexes). However, a recent theory of motor control, based on optimal control, suggests that voluntary motor behavior involves the sophisticated manipulation of sensory feedback. We have recently proposed that one implication of this theory is that the long-latency stretch reflex, like voluntary control, should support a rich assortment of behaviors because these two processes are intimately linked through shared neural circuitry including primary motor cortex. In this review, we first describe the basic principles of optimal feedback control related to voluntary motor behavior. We then explore the functional properties of upper-limb stretch responses, with a focus on how the sophistication of the long-latency stretch response rivals voluntary control. And last, we describe the neural circuitry that underlies the long-latency stretch response and detail the evidence that primary motor cortex participates in sophisticated feedback responses to mechanical perturbations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available