NDLI: Spatial memory and orientation strategies in the elasmobranch Potamotrygon motoro

Content Provider	Springer Nature Link
Author	Schluessel, Vera Bleckmann, Horst
Copyright Year	2005
Abstract	We investigated whether juvenile freshwater stingrays (Potamotrygon motoro) can solve spatial tasks by constructing a cognitive map of their environment. Two experimental conditions were run: allocentric and ego-allocentric. Rays were trained to locate food within a four-arm maze placed in a room with visual spatial cues. The feeding location (goal) within the maze (room) remained constant while the starting position varied for the allocentrically but not for the ego-allocentrically trained group. After training, all rays solved the experimental tasks; however, different orientation strategies were used within and between groups. Allocentrically trained rays reached the goal via novel routes starting from unfamiliar locations, while ego-allocentrically trained rays primarily solved the task on the basis of an egocentric turn response. Our data suggest that P. motoro orients by constructing a visual cognitive map of its environment, but also uses egocentric and/or other orientation strategies alone or in combination for spatial orientation, a choice which may be governed by the complexity of the problem. We conclude that spatial memory functions are a general feature of the vertebrate brain.
Starting Page	695
Ending Page	706
Page Count	12
File Format	PDF
ISSN	03407594
Journal	Journal of Comparative Physiology A
Volume Number	191
Issue Number	8
e-ISSN	14321351
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-05-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Stingray Allocentric Egocentric Cognitive map Spatial Orientation
Content Type	Text
Resource Type	Article
Subject	Physiology Behavioral Neuroscience Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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