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Visual working memory (VWM) robustly maintains feature-bound object representations, even with object motion. This suggests VWM binding is resilient, with motion impacting spatiotemporal continuity rather than feature binding itself.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • The storage and nature of feature-bound object representations in visual working memory (VWM) are debated.
  • Previous research suggests VWM representations are fragile and resource-limited.

Purpose of the Study:

  • To investigate the robustness of color-shape binding in VWM using a novel redundant feature reviewing task.
  • To determine how object motion affects feature binding and object representation accessibility in VWM.

Main Methods:

  • Participants performed a redundant feature reviewing task involving memory displays with color-shape features.
  • Object motion was manipulated between memory and probe displays.
  • Feature coactivation and object-specific preview benefit (OSPB) were measured.

Main Results:

  • Color-shape binding advantage was maintained in VWM, irrespective of object motion.
  • Object motion reduced the object-specific preview benefit (OSPB), indicating disrupted spatiotemporal continuity.
  • A meta-analysis confirmed a significant OSPB even with motion, supporting object file representations.

Conclusions:

  • Nonspatial features of multiple objects are bound and maintained robustly in VWM, independent of motion.
  • Motion's cost on performance relates to spatiotemporal correspondence, not feature binding integrity.
  • VWM object representations demonstrate resilience in feature binding despite spatial disruptions.