The role of the avian hippocampus in orientation in space and time

Citation
M. Colombo et al., The role of the avian hippocampus in orientation in space and time, BRAIN RES, 919(2), 2001, pp. 292-301
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Neurosciences & Behavoir
Journal title
BRAIN RESEARCH
ISSN journal
0006-8993 → ACNP
Volume
919
Issue
2
Year of publication
2001
Pages
292 - 301
Database
ISI
SICI code
0006-8993(20011123)919:2<292:TROTAH>2.0.ZU;2-M
Abstract
We examined the effects of hippocampus (Hp) and area parahippocampalis (APH ) lesions in pigeons on their ability to perform a battery of tasks includi ng autoshaping. time discrimination, spatial memory, and pattern discrimina tion. Pigeons with Hp-APH lesions were impaired in the acquisition of an au toshaped response, emitting fewer pecks to the stimulus than control animal s. Hp-APH pigeons were also impaired in the acquisition of a radial-arm maz e analogue task, and those birds that did learn the task seemed to do so by adopting a stereotypic response strategy. In contrast, Hp-APH lesions had no effect on the ability of the birds to discriminate on the basis of eithe r temporal or visual information. Overall, these studies complement our ear lier studies and suggest that the avian hippocampus is important for the pr ocessing and retention of spatial rather than non-spatial information. (C) 2001 Published by Elsevier Science B.V.