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Scale ambiguities in material recognition.

Jacob R Cheeseman1, Roland W Fleming1,2, Filipp Schmidt1

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Summary
This summary is machine-generated.

Perception of natural materials depends on assumed scale. Manipulating apparent distance changed how identical images were categorized, showing top-down influences on material identification.

Keywords:
Biological sciencesNeuroscienceSensory neuroscience

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Area of Science:

  • Cognitive psychology
  • Visual perception
  • Material science

Background:

  • Natural materials exhibit complex, multi-scale structures.
  • Surface identity can change based on the observer's spatial scale.
  • This phenomenon is termed 'material-scale ambiguity'.

Purpose of the Study:

  • To investigate material-scale ambiguity.
  • To determine if apparent distance manipulations affect material categorization.
  • To demonstrate top-down effects in visual interpretation.

Main Methods:

  • 87 photographs of diverse materials were used.
  • Two experiments involved 72 adult participants.
  • Apparent distance was manipulated via verbal cues and familiar objects.

Main Results:

  • Identical images were assigned to different material categories based on assumed scale.
  • Manipulations of apparent distance significantly altered material judgments.
  • Material categorization proved susceptible to scale-based top-down influences.

Conclusions:

  • Visual perception of materials is highly sensitive to assumed spatial scale.
  • Top-down processing significantly impacts how visual information is interpreted.
  • Understanding material-scale ambiguity is crucial for visual science research.