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Functionally distinct memories for imprinting stimuli: Behavioral and neural dissociations

Honey, Robert Colin ORCID:, Horn, G., Bateson, P. and Walpole, M. 1995. Functionally distinct memories for imprinting stimuli: Behavioral and neural dissociations. Behavioral Neuroscience 109 (4) , pp. 689-698. 10.1037/0735-7044.109.4.689

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Precocial chicks exposed to a stimulus subsequently approach that stimulus in preference to other, novel stimuli. Previous investigations of the neural basis of these imprinting preferences suggest that imprinting training results in the formation of two memories. The first memory is formed rapidly and is located in the intermediate and medial part of the hyperstriatum ventrale (IMHV) of the left hemisphere; the formation of the second, in another memory system, S', takes several hours and can be prevented by a lesion placed in the right IMHV soon after training. The results of the present study suggest that the functional characteristics of these memories differ. Although memories in both left IMHV and S' supported imprinting preferences (Experiments 1a and 2a), only memories in S' influenced the acquisition of a heat-reinforced discrimination in which imprinted objects served as discriminanda (Experiments 1b and 2b).

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher: American Psychological Association
ISSN: 0735-7044
Last Modified: 21 Oct 2022 09:07

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