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        Efffects of hypothalamic lesions on the food intake of the goldfish (Carassius auratus)

        Author
        Roberts, Michael
        Savage, George
        Attention
        2299/8208
        Abstract
        Goldfish were trained to perform an operant response in order to obtain food, thereby allowing the food intake to be accurately determined. The normal daily food intake was established for each fish before it was given a sham operation or bilateral hypothalamic lesions. It was then observed over a period of up to 60 days. Lesions of the lateral areas of the hypothalamus were found to cause cessations of operant feeding of up to 60 days duration, and cessations of feeding on manually presented food of up to 35 days. Lesions of the anterior-medial areas were followed by cessations of operant feeding of up to 26 days. The post-lesioning food intake of fish lesioned in the posterior-medial area was similar to that of the control fish. No increases in operant feeding were observed after lesioning. The results are considered to be consistent with a genuine aphagia induced by lesions of the lateral hypothalamus.
        Publication date
        1978
        Published in
        Brain, Behavior and Evolution
        Published version
        https://doi.org/10.1159/000123777
        Other links
        http://hdl.handle.net/2299/8208
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