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Exploring for gloss: Active exploration in visual material perception.
Lisa P Y Lin1,2, Knut Drewing1,3, Katja Doerschner1,4
1Department of Psychology, Justus-Liebig University Giessen, Giessen, Germany.
Journal of Vision
|May 5, 2025
Summary
Active exploration shapes visual perception. This study found that people move objects more when judging glossiness versus lightness, adapting actions to perceptual needs.
Area of Science:
- Visual perception
- Motor control
- Human-computer interaction
Background:
- Active exploration generates motion signals crucial for perceiving visual material properties.
- The influence of specific perceptual tasks on action generation for cue acquisition remains underexplored.
Purpose of the Study:
- To investigate how perceptual task demands (e.g., judging gloss or lightness) shape exploratory behaviors.
- To understand the strategic adaptation of actions based on the information needed for visual material property judgments.
Main Methods:
- Utilized virtual reality (VR) and real-time hand tracking to monitor object exploration.
- Participants performed matching tasks involving objects with varying gloss and lightness, under both observational and active exploration conditions.
Main Results:
- Exploration patterns differed significantly based on the perceptual task.
- Participants exhibited more extensive object exploration (larger movements, increased rotation) when judging gloss compared to lightness.
Conclusions:
- Exploratory actions are strategically adapted to the specific demands of the perceptual task.
- Task-dependent exploration optimizes the acquisition of relevant visual cues for material property perception.
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