Document Detail

Inferences about the location of food in the great apes (Pan paniscus, Pan troglodytes, Gorilla gorilla, and Pongo pygmaeus).
MedLine Citation:
PMID:  15250810     Owner:  NLM     Status:  MEDLINE    
Bonobos (Pan paniscus; n = 4), chimpanzees (Pan troglodytes; n = 12), gorillas (Gorilla gorilla; n = 8), and orangutans (Pongo pygmaeus; n = 6) were presented with 2 cups (1 baited) and given visual or auditory information about their contents. Visual information consisted of letting subjects look inside the cups. Auditory information consisted of shaking the cup so that the baited cup produced a rattling sound. Subjects correctly selected the baited cup both when they saw or heard the food. Nine individuals were above chance in both visual and auditory conditions. More important, subjects as a group selected the baited cup when only the empty cup was either shown or shaken, which means that subjects chose correctly without having seen or heard the food (i.e., inference by exclusion). Control tests showed that subjects were not more attracted to noisy cups, avoided shaken noiseless cups, or learned to use auditory information as a cue during the study. It is concluded that subjects understood that the food caused the noise, not simply that the noise was associated with the food.
Josep Call
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of comparative psychology (Washington, D.C. : 1983)     Volume:  118     ISSN:  0735-7036     ISO Abbreviation:  J Comp Psychol     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-07-14     Completed Date:  2004-10-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8309850     Medline TA:  J Comp Psychol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  232-41     Citation Subset:  IM    
Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
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MeSH Terms
Behavior, Animal
Feeding Behavior
Gorilla gorilla
Pan paniscus
Pan troglodytes
Pongo pygmaeus
Random Allocation
Space Perception*

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