Interpeduncular Nucleus and Avoidance Conditioning in the Rat

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Science  25 Nov 1960:
Vol. 132, Issue 3439, pp. 1551-1553
DOI: 10.1126/science.132.3439.1551


Rats trained to make a jumping response to the onset of a visual stimulus lost the habit after damage to the interpeduncular nucleus of the midbrain. It was noted, however, that the majority of the operated animals showed perfect retention of the "fear" response to the conditioned stimulus.