Spatial memory and orientation strategies in the elasmobranch Potamotrygon motoro

Schluessel, Vera and Bleckmann, Horst (2005) Spatial memory and orientation strategies in the elasmobranch Potamotrygon motoro. Journal of Comparative Physiology A: sensory, neural, and behavioral physiology, 191 8: 695-706. doi:10.1007/s00359-005-0625-9


Author Schluessel, Vera
Bleckmann, Horst
Title Spatial memory and orientation strategies in the elasmobranch Potamotrygon motoro
Journal name Journal of Comparative Physiology A: sensory, neural, and behavioral physiology   Check publisher's open access policy
ISSN 0340-7594
Publication date 2005
Sub-type Article (original research)
DOI 10.1007/s00359-005-0625-9
Volume 191
Issue 8
Start page 695
End page 706
Total pages 12
Place of publication New York
Publisher Springer
Collection year 2005
Language eng
Subject C1
0606 Physiology
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.
Keyword Stingray
Allocentric
Egocentric
Cognitive Map
Spatial Orientation
Behavioral Sciences
Neurosciences
Physiology
Zoology
Goldfish Carassius-auratus
Telencephalic Ablation
Foraging Goldfish
Constancy Problem
Maze Procedures
Cued One
Behavior
Fish
Performance
Place
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2006 Higher Education Research Data Collection
School of Biomedical Sciences Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 22 times in Scopus Article | Citations
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Created: Wed, 15 Aug 2007, 05:55:37 EST