Eye and head movements shape gaze shifts in Indian peafowl.

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  • Additional Information
    • Source:
      Publisher: Company Of Biologists Limited Country of Publication: England NLM ID: 0243705 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1477-9145 (Electronic) Linking ISSN: 00220949 NLM ISO Abbreviation: J Exp Biol Subsets: MEDLINE
    • Publication Information:
      Publication: London : Company Of Biologists Limited
      Original Publication: London, Cambridge Univ. Press.
    • Subject Terms:
      Attention*; Eye Movements/*physiology ; Galliformes/*physiology ; Head Movements/*physiology; Animals ; Female ; Male ; Reflex, Vestibulo-Ocular ; Saccades/physiology
    • Abstract:
      Animals selectively direct their visual attention toward relevant aspects of their environments. They can shift their attention using a combination of eye, head and body movements. While we have a growing understanding of eye and head movements in mammals, we know little about these processes in birds. We therefore measured the eye and head movements of freely behaving Indian peafowl (Pavo cristatus) using a telemetric eye-tracker. Both eye and head movements contributed to gaze changes in peafowl. When gaze shifts were smaller, eye movements played a larger role than when gaze shifts were larger. The duration and velocity of eye and head movements were positively related to the size of the eye and head movements, respectively. In addition, the coordination of eye and head movements in peafowl differed from that in mammals; peafowl exhibited a near-absence of the vestibulo-ocular reflex, which may partly result from the peafowl's ability to move their heads as quickly as their eyes.
      (© 2015. Published by The Company of Biologists Ltd.)
    • Contributed Indexing:
      Keywords: Eye movement; Eye tracking; Fixation; Pavo cristatus; Saccade; Vestibulo-ocular reflex
    • Publication Date:
      Date Created: 20151022 Date Completed: 20170111 Latest Revision: 20170112
    • Publication Date:
      20221213
    • Accession Number:
      10.1242/jeb.129544
    • Accession Number:
      26486363