publication . Article . 2011

Target animacy influences gorilla handedness.

Gillian S. Forrester; David A. Leavens; Caterina Quaresmini; Giorgio Vallortigara;
Open Access English
  • Published: 01 Nov 2011
  • Publisher: Springer
  • Country: United Kingdom
We investigated the unimanual actions of a biological family group of twelve western lowland gorillas (Gorilla gorilla gorilla) using a methodological approach designed to assess behavior within social context from a bottom-up perspective. Measures of both the lateralization of unimanual actions (left, right) and the target of the action (animate, inanimate) were assessed during dual, synchronized video observations of naturalistic behavior. This paper demonstrates a corelationship between handedness and the animate quality of the target object. Analyses demonstrated a significant interaction between lateralized unimanual actions and target animacy and a right-h...
free text keywords: psyc, Experimental and Cognitive Psychology, Ecology, Evolution, Behavior and Systematics, Communication, business.industry, business, Gorilla, biology.animal, biology, Animacy, Psychology, Social psychology, Family group, Lateralization of brain function, Chirality (physics), Emotive, Psychological research

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