Telencephalic ablation in goldfish impairs performance in a 'spatial constancy' problem but not in a cued one.

Abstract:

:This work was aimed to study if goldfish telencephalon is involved differentially in spatial and cue learning. With this purpose, animals were assigned to two learning conditions, 'spatial constancy' and 'directly cued', and their performance was recorded before and after ablation of the telencephalon. During the presurgical acquisition period, animals of both groups learned to solve the task with accuracy, and reached the goal in transfer tests, even though they were released from new starting positions and the response requirements were changed. Ablation impaired selectively the solution of the spatial constancy problem, but had no significant effects on the cued condition. However, with additional training, performance of the ablated animals in the spatial constancy condition improved to control levels. The above data suggest that fishes can implement multiple spatial learning strategies which have different neural substrata. These results are discussed in relation to the possible nature of the representation underlying each task.

journal_name

Behav Brain Res

authors

Salas C,Broglio C,Rodríguez F,López JC,Portavella M,Torres B

doi

10.1016/0166-4328(96)00014-9

subject

Has Abstract

pub_date

1996-09-01 00:00:00

pages

193-200

issue

1-2

eissn

0166-4328

issn

1872-7549

pii

0166-4328(96)00014-9

journal_volume

79

pub_type

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