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  • Title: Auditory orienting and detection in rats following lesions of the superior colliculus.
    Author: Milner AD, Taylor MJ.
    Journal: Behav Brain Res; 1990 Mar 26; 37(3):293-6. PubMed ID: 2340103.
    Abstract:
    Rats were trained to run towards a lighted target following either bilateral lesions of the superior colliculus (SC) or control lesions of the overlying cortex. At 4 months post-surgery, the animals were tested for the disruptive effects of an auditory tone. An increase in running times was found in both groups, attributable to frequent freezing reactions in all animals. However, only the control rats made orienting reactions to the tones. It is argued that the freezing responses show that the SC lesions did not impair sensory detection; consequently, the orienting failure cannot be attributed to a sensory deficit.
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