Visual working memory representations are distorted by their use in perceptual comparisons
Dr
University of Toronto Mississauga, University of Toronto
Event Information
Host
Distributed WM Series
Duration
60 minutes
Abstract
Visual working memory (VWM) allows us to maintain a small amount of task-relevant information in mind so that we can use them to guide our behavior. Although past studies have successfully characterized its capacity limit and representational quality during maintenance, the consequence of its usage for task-relevant behaviors has been largely unknown. In this talk, I will demonstrate that VWM representations get distorted when they are used for perceptual comparisons with new visual inputs, especially when the inputs are subjectively similar to the VWM representations. Furthermore, I will show that this similarity-induced memory bias (SIMB) occurs for both simple (e.g. , color, shape) and complex stimuli (e.g., real world objects, faces) that are perceptually encoded and retrieved from long-term memory. Given the observed versatility of the SIMB, its implication for other memory distortion phenomena (e.g., distractor-induced distortion, misinformation effect) will be discussed.
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