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Representing dynamic stimulus information during occlusion.

Jim Maarseveen1, Chris L E Paffen1, Frans A J Verstraten2

  • 1Utrecht University, Helmholtz Institute, Department of Experimental Psychology, The Netherlands.

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|July 9, 2017
PubMed
Summary

Human visual perception represents occluded objects, including their dynamic features. This study shows that temporal frequency influences perceived duration even when objects are hidden, confirming dynamic property representation during occlusion.

Keywords:
Duration perceptionDynamic stimulus informationExpectancyObject persistenceOcclusionTemporal processingTime perception

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Humans maintain mental representations of objects, even when not directly visible.
  • Understanding how dynamic visual features are processed during occlusion is crucial for visual cognition.

Purpose of the Study:

  • To investigate if dynamic visual features, specifically temporal frequency, are represented during object occlusion.
  • To determine if temporal frequency influences perceived duration of occluded events.

Main Methods:

  • Utilized a time perception illusion where perceived duration increases with temporal frequency.
  • Conducted experiments with visible and temporarily occluded objects to measure duration perception.
  • Manipulated expected temporal frequency content during occlusion to assess its impact.

Main Results:

  • Temporal frequency modulated perceived duration for both visible and occluded objects.
  • Time dilation effects for occluded objects were not due to pre- or post-occlusion presentation.
  • Perceived duration of occluded events was dependent on the expected temporal frequency during occlusion.

Conclusions:

  • The dynamic properties of objects are represented in human visual memory during occlusion.
  • Representations of occluded objects encompass both static and dynamic features observed prior to occlusion.