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Memory, Imprinting, and the BrainAn Inquiry into Mechanisms$
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Gabriel Horn

Print publication date: 1985

Print ISBN-13: 9780198521563

Published to Oxford Scholarship Online: January 2008

DOI: 10.1093/acprof:oso/9780198521563.001.0001

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Predispositions and preferences

Predispositions and preferences

Chapter:
(p.151) 8 Predispositions and preferences
Source:
Memory, Imprinting, and the Brain
Author(s):

Gabriel Horn

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198521563.003.0008

This chapter investigates the effects of brain lesions on imprinting; the training objects were either a rotating flashing red box or a stuffed hen jungle-fowl. In experiments, the preferences of both chicks trained on the jungle fowl and chicks trained on the red box were reduced. The effect on the box-trained chicks was significant, while the effect on chicks trained on the jungle fowl was relatively weak. The preferences of young chicks were affected by two underlying processes. There is (i) a developing predisposition which becomes apparent as an increasing preference for the jungle fowl. The predisposition can be activated by non-specific experiences, and once activated interacts with (ii) a learning process through which chicks come to recognize specific objects to which they have been exposed. The IMHV is concerned with the second process.

Keywords:   bran lesion, imprinting, training, jungle fowl, behavioural analysis

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