How body postures affect gaze control in scene viewing under specific task conditions.

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  • Author(s): Backhaus D;Backhaus D; Engbert R; Engbert R; Engbert R
  • Source:
    Experimental brain research [Exp Brain Res] 2024 Mar; Vol. 242 (3), pp. 745-756. Date of Electronic Publication: 2024 Feb 01.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Springer Verlag Country of Publication: Germany NLM ID: 0043312 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-1106 (Electronic) Linking ISSN: 00144819 NLM ISO Abbreviation: Exp Brain Res Subsets: MEDLINE
    • Publication Information:
      Original Publication: Berlin : Springer Verlag
    • Subject Terms:
      Fixation, Ocular* ; Eye Movements*; Humans ; Posture ; Movement ; Standing Position
    • Abstract:
      Gaze movements during visual exploration of natural scenes are typically investigated with the static picture viewing paradigm in the laboratory. While this paradigm is attractive for its highly controlled conditions, limitations in the generalizability of the resulting findings to more natural viewing behavior have been raised frequently. Here, we address the combined influences of body posture and viewing task on gaze behavior with the static picture viewing paradigm under free viewing as a baseline condition. We recorded gaze data using mobile eye tracking during postural manipulations in scene viewing. Specifically, in Experiment 1, we compared gaze behavior during head-supported sitting and quiet standing under two task conditions. We found that task affects temporal and spatial gaze parameters, while posture produces no effects on temporal and small effects on spatial parameters. In Experiment 2, we further investigated body posture by introducing four conditions (sitting with chin rest, head-free sitting, quiet standing, standing on an unstable platform). Again, we found no effects on temporal and small effects on spatial gaze parameters. In our experiments, gaze behavior is largely unaffected by body posture, while task conditions readily produce effects. We conclude that results from static picture viewing may allow predictions of gaze statistics under more natural viewing conditions, however, viewing tasks should be chosen carefully because of their potential effects on gaze characteristics.
      (© 2024. The Author(s).)
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    • Grant Information:
      EN471/16-1 Deutsche Forschungsgemeinschaft
    • Contributed Indexing:
      Keywords: Mobile eye-tracking; Natural scene viewing; Postural variation; Task variation
    • Publication Date:
      Date Created: 20240201 Date Completed: 20240226 Latest Revision: 20240805
    • Publication Date:
      20240805
    • Accession Number:
      PMC11297079
    • Accession Number:
      10.1007/s00221-023-06771-x
    • Accession Number:
      38300280