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Predictive processing in biological motion perception in audiovisual context.

Cemre Uçkan1, Burcu A Urgen1

  • 1Bilkent University, Turkey.

Perception
|March 29, 2025
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Summary

Prior auditory information speeds up biological motion (BM) detection but does not improve accuracy. This study explored how expectations in audiovisual settings influence visual perception of human motion.

Keywords:
biological motion perceptioncross-modal primingpredictive processingprior information

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Auditory Perception

Background:

  • Visual perception of biological motion (BM) is crucial for environmental understanding.
  • Cross-modal priming research has advanced BM perception understanding.
  • The role of expectations in audiovisual BM perception is under-explored.

Purpose of the Study:

  • Investigate the impact of congruent and incongruent auditory cues on BM detection.
  • Explore predictive processing's influence on audiovisual BM perception.
  • Examine how prior auditory information affects reaction time and accuracy in BM detection.

Main Methods:

  • Participants detected BMs in point-light displays.
  • Auditory cues were either congruent or incongruent with the visual BM.
  • Task required fast and accurate BM detection.

Main Results:

  • Reaction times were significantly shorter for congruent auditory cues compared to incongruent ones.
  • Auditory cue congruency did not affect detection accuracy.
  • Prior information facilitated faster, but not more accurate, BM detection.

Conclusions:

  • Prior auditory information can enhance the speed of biological motion perception.
  • Expectations derived from auditory cues influence processing speed but not necessarily accuracy.
  • Findings contribute to understanding predictive processing in audiovisual perception.