Further validation of the corridor task for assessing deficit and recovery in the hemi-Parkinsonian rat: restoration of bilateral food retrieval by dopamine receptor agonism.

The corridor test is a newly developed test of sensorimotor integration that depends on a rat's ability to retrieve food from either side of its body. Rats with unilateral dopamine-depleting lesions neglect food on the contralateral side of their bodies, and selectively retrieve from the ipsilateral side. In the present study, the time-course for development of this deficit after injection of 6-hydroxydopamine into the striatum is determined using the corridor test.