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2025 APS Global Summit Program

This program does not include all sessions and will be updated as additional program information is received. Please check back for the latest program updates. 

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1 Session

Subject Area: Perception

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Roundtable

Differential Boundary-Shape Effects on Visual Working Memory Suggests Encoding Formats Evolve from Early Perception to Statistical Compression

Tuesday October 21, 2025 1:00 PM - 1:45 PM ET (17:00 - 17:45 UTC)

Subject Area: Perception

Abstract

Visual working memory showed striking temporal dissociation: angular boundaries (rectangles, pentagons) enhanced early maintenance (500ms) but declined 40%+, while circular boundaries improved 130% by 1500ms, achieving >100% efficiency. Performance changes followed geometric principles (R²=.93). Findings reveal dynamic memory reorganization from discrete perceptual to statistical ensemble representations, reconciling competing capacity theories.

Visual working memory showed striking temporal dissociation: angular boundaries (rectangles, pentagons) enhanced early maintenance (500ms) but declined 40%+, while circular boundaries improved 130% by 1500ms, achieving >100% efficiency. Performance changes followed geometric principles (R²=.93). Findings reveal dynamic memory reorganization from discrete perceptual to statistical ensemble representations, reconciling competing capacity theories.