In the last years I have studied how CNS and Spinal Cord interact for generating a reaching movement.
I'm writing on the current opinions about how CNS controls reaching movements. Because there are a lot of different positions about this topic i want to be sure that no one is omitted in my thesis.
So, in your opinion, which are the parameters encoded by the motor cortex in a motor command? Or, in other words, how CNS controls reaching movements?
There are many parameters involved in the movement generation. From the cortex to differents levels of spinal cord, the connection between upper motor neurons and the lower motor neurons via the excitatory interneurons producing the movement.
You Should discuss the role of the principal tracts in motor cortex such as Corticospinal Tract.
Dear Hector,
I agree with you. The problem is that few is known about interneuronal networks in the spinal cord and therefore it's difficult to describe how CNS and spinal cord cooperate.
Have you any papers to suggest to me?
Dear Antonio, Guillermo Lanuza is specialist in interneurons in spinal cord, I suggest you that read his papers.
best,
Ramiro
Hi, can refer to the following article,
http://www.gatsby.ucl.ac.uk/~maneesh/tmp/kalaska.2009.motor.cortex.pdf
Dear Dr. Somasundaram and Dr. Pimiskern, thank you a lot for your suggestions.
I knew Kalaska's paper but i never read the other papers that seem to contain a lot of new insight for replying to my answer.
Thanks a lot!
Hi all!
I very much go along with Andreas Kalckert's recommendations, too.
But when it comes down to specifically address the question of cortico-spinal interplay in upper-limb control, the concept of threshold position control (cf. tonic stretch reflex) as advocated by Anatol Fel'dman, Mindy Levin (both Université de Montréal, i believe), and also by Mark Latash (PennState University) might be worthwhile to be taken into closer consideration.
See for instance the paper by Raptis, H., Burtet, L., Forget, R., and Feldman , A.G. (2010). Control of wrist position and muscle relaxation by shifting spatial frames of reference for motoneuronal recruitment: possible involvement of corticospinal pathways. J Physiol 588.9 (2010), pp. 1551-1570.
Regards,
Klaus Blishcke
Dear Dr. Kalckert · and Dr.Blischke , thank you a lot for your suggestions.
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