NDLI: A new method for studying problem solving and tool use in stingrays (Potamotrygon castexi)

Content Provider	Springer Nature Link
Author	Kuba, Michael J. Byrne, Ruth A. Burghardt, Gordon M.
Copyright Year	2009
Abstract	Testing the cognitive abilities of cartilaginous fishes is important in understanding the evolutionary origins of cognitive functions in higher vertebrates. We used five South American fresh water stingrays (Potamotrygon castexi) in a learning and problem-solving task. A tube test apparatus was developed to provide a simple but sophisticated procedure for testing cognitive abilities of aquatic animals. All five subjects quickly learned to use water as a tool to extract food from the testing apparatus. The experimental protocol, which gave the animals the opportunity of correcting a wrong visual cue decision, resulted in four out of five subjects correcting an error rather than making an initial right choice. One of five subjects reached 100% correct trials in the visual discrimination task. The ability to use water as an agent to extract food from the testing apparatus is a first indication of tool use in batoid fishes. Performance in the instrumental task of retrieving food from a novel testing apparatus and the rapid learning in the subsequent discrimination/error correction task shows that cartilaginous fish can be used to study the origins of cognitive functions in the vertebrate lineage.
Starting Page	507
Ending Page	513
Page Count	7
File Format	PDF
ISSN	14359448
Journal	Animal Cognition
Volume Number	13
Issue Number	3
e-ISSN	14359456
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-12-18
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Tool use Problem solving Cognition Learning Fish Stingray Potamotrygon castexi Zoology Behavioural Sciences Human Physiology Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Ecology, Evolution, Behavior and Systematics

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