Abstract
Hindlimb sensory deprivation is known to induce a decrease in the cortical representation of hindpaw, and an increase in the size of the cutaneous receptive fields. The aim of the present study was to determine (i) the time-course of recovery when the rat retrieves a normal use of its limbs after a 14-day period of sensory disruption and (ii) whether a 1-day period of sensory deprivation is sufficient to induce a plasticity. Our results indicate that the remodelling of the cortical map was not observed after 1 day of sensory deprivation. On the other hand, the recovery was achieved after 6 h. These findings suggest that a procedure reducing sensory function resulted in reversible changes in the somatosensory cortex. The recovery was more rapid than the induction of plasticity.
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