Summary
Reflex responses to cutaneous stimulation vary with the phase of locomotion. In high decerebrate cats walking on a treadmill, strong cutaneous stimulation to one hindlimb induces a crossed extension during the contralateral stance and a crossed flexion during the contralateral swing. During ‘fictive’ locomotion in acute spinal cats pretreated with Nialamide and DOPA, essentially the same reversal of crossed reflexes can be observed. However, some responses appear to be ‘wrong’ for the phase of locomotion and in some animals the crossed responses cannot be reversed at all. This was not seen in true locomotion. It is suggested that during actual walking, reflex patterns are largely selected by a central generator for locomotion and that the selection is reinforced by peripheral inputs originating from the moving limbs.
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Rossignol, S., Julien, C., Gauthier, L., Lund, J.P. (1981). State-dependent responses during locomotion. In: Taylor, A., Prochazka, A. (eds) Muscle Receptors and Movement. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-06022-1_42
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DOI: https://doi.org/10.1007/978-1-349-06022-1_42
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