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Human Infants and Baboons Show the Same Pattern of Handedness for a Communicative Gesture

Meunier, Helene ; Vauclair, Jacques ; Fagard, Jacqueline

PLoS One, Mar 2012, Vol.7(3), p.e33959 [Tạp chí có phản biện]

E-ISSN: 19326203 ; DOI: 10.1371/journal.pone.0033959

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  • Nhan đề:
    Human Infants and Baboons Show the Same Pattern of Handedness for a Communicative Gesture
  • Tác giả: Meunier, Helene ; Vauclair, Jacques ; Fagard, Jacqueline
  • Chủ đề: Infants ; Language Acquisition ; Evolution ; Sign Language ; Communication ; Handedness ; Infants ; Brain Research ; Language ; Baboons ; Handedness ; Adaptation ; Human Communication ; Preferences ; Hand ; Spatial Discrimination ; Animal Cognition ; Handedness ; Males ; Grasping
  • Là 1 phần của: PLoS One, Mar 2012, Vol.7(3), p.e33959
  • Mô tả: To test the role of gestures in the origin of language, we studied hand preferences for grasping or pointing to objects at several spatial positions in human infants and adult baboons. If the roots of language are indeed in gestural communication, we expect that human infants and baboons will present a comparable difference in their pattern of laterality according to task: both should be more right-hand/left-hemisphere specialized when communicating by pointing than when simply grasping objects. Our study is the first to test both human infants and baboons on the same communicative task. Our results show remarkable convergence in the distribution of the two species' hand biases on the two kinds of tasks: In both human infants and baboons, right-hand preference was significantly stronger for the communicative task than for grasping objects. Our findings support the hypothesis that left-lateralized language may be derived from a gestural communication system that was present in the common...
  • Ngôn ngữ: English
  • Số nhận dạng: E-ISSN: 19326203 ; DOI: 10.1371/journal.pone.0033959

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