Document Detail


Brown (Eulemur fulvus) and Ring-Tailed Lemurs (Lemur catta) Use Human Head Orientation as a Cue to Gaze Direction in a Food Choice Task.
MedLine Citation:
PMID:  22123170     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Whilst the ability to follow human gaze has been demonstrated in monkeys and apes, there is little evidence that prosimians share this ability. The current study used a food choice paradigm to assess whether captive brown (Eulemur fulvus) and ring-tailed lemurs (Lemur catta) use human gaze direction as a cue when choosing between an attending or non-attending human. Four experiments assessed the use of body, head and eye cues by the lemurs. In experiment 1, the non-attending human stood with her back to a food item; 3 of the 5 lemurs preferentially chose the attending human with an equivalent food item in view. In experiments 2 and 3, which used head angles of 90°, 4 out of 5 lemurs preferentially chose the attending human. In experiment 4, in which the humans differed only by whether their eyes were open or shut, no significant preferences were found. This study provides the first tentative evidence that lemurs are capable of discriminating human gaze direction and can use both body and head direction to do so.
Authors:
Jennifer L Botting; Mallory L Wiper; James R Anderson
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-25
Journal Detail:
Title:  Folia primatologica; international journal of primatology     Volume:  82     ISSN:  1421-9980     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370723     Medline TA:  Folia Primatol (Basel)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  165-176     Citation Subset:  -    
Copyright Information:
Copyright © 2011 S. Karger AG, Basel.
Affiliation:
Department of Psychology, University of Stirling, Stirling, UK.
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