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Physically Implied Surfaces.

Patrick C Little1,2, Chaz Firestone1

  • 1Department of Psychological and Brain Sciences, Johns Hopkins University.

Psychological Science
|April 1, 2021
PubMed
Summary
This summary is machine-generated.

Physical interactions, like bumping into an unseen object, help us infer the presence of surfaces not directly visible. This suggests our brains automatically represent objects based on their physical consequences.

Keywords:
amodal perceptioncausal perceptionintuitive physicsmagicmimeopen dataopen materialspreregistered

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Area of Science:

  • Cognitive Psychology
  • Perception Science
  • Human-Computer Interaction

Background:

  • Humans perceive objects directly visible and also infer the presence of unseen objects through various cues.
  • The role of physical interaction in inferring implied objects remains underexplored.

Purpose of the Study:

  • To investigate if physical interaction with implied objects influences the perception of surfaces.
  • To determine if such interactions trigger automatic inferences about unseen surfaces.

Main Methods:

  • Three preregistered experiments with 360 adult participants were conducted.
  • Participants observed actors interacting with implied surfaces (invisible walls/boxes).
  • Response times to visible surfaces appearing in the implied locations were measured (Stroop-like task).

Main Results:

  • Participants showed facilitated responses to visible surfaces at locations where implied objects had been interacted with.
  • This facilitation and interference pattern suggests automatic inferences about the implied surfaces.
  • Follow-up experiments ruled out geometric cues and anticipatory responses as explanations.

Conclusions:

  • Physical interactions can automatically trigger mental representations of surfaces.
  • We infer the presence of objects based on their physical consequences, even when not directly perceived.
  • This highlights the embodied nature of object representation in human cognition.