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Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
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Enhancing change perception through object-based attention.

Tong Xie1, Shimin Fu2

  • 1Department of Psychology and Center for Brain and Cognitive Sciences, School of Education, Guangzhou University, Guangzhou, 510006, China.

Attention, Perception & Psychophysics
|May 13, 2025
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Changes within a single object are perceived faster than across different objects, demonstrating the object-based attention effect on change perception. This highlights how object-based attention enhances perceptual sensitivity.

Keywords:
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Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Attention Studies

Background:

  • Change perception is crucial for environmental interaction.
  • The influence of object-based attention on change perception remains under-explored.

Purpose of the Study:

  • To investigate how object-based attention modulates change perception.
  • To determine if perceptual changes are enhanced when occurring within a single object.

Main Methods:

  • Utilized the gap-contingent technique within a double-rectangle paradigm.
  • Compared response times for changes occurring within the same object versus across different objects.
  • Applied the drift-diffusion model to analyze information accumulation.

Main Results:

  • Participants exhibited faster response times for within-object changes, confirming an object-based attention effect.
  • The object-based attention effect was robust across variations in change number, response time limits, task difficulty, and object relevance.
  • The drift-diffusion model indicated more rapid information accumulation for within-object changes.

Conclusions:

  • Changes occurring within the same object are perceived with enhanced sensitivity.
  • Object-based attention plays a significant role in improving perceptual sensitivity to changes.