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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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Physiological constraints on memory and imprinting

Physiological constraints on memory and imprinting

(p.175) 9 Physiological constraints on memory and imprinting
Memory, Imprinting, and the Brain

Gabriel Horn

Oxford University Press

This chapter reviews evidence that activity in the sensory pathways is insufficient for information storage. The roles of noradrenaline and testosterone in imprinting processes are analyzed. The concentration of noradrenaline in parts of the forebrain, including the IMHV, appears to limit acquisition particularly in chicks trained on the box. For fowl-trained chicks, preference for the jungle-fowl was associated with testosterone concentration in the plasma. The results suggest that at least some of the neural mechanisms underlying the preference for the box and for the fowl, respectively, are subject to different physiological constraints.

Keywords:   information storage, brain, imprinting process, noradrenaline, testosterone

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