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Related Experiment Video

Updated: Jun 14, 2025

Training Synesthetic Letter-color Associations by Reading in Color

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

Color category and inter-item interaction influence color working memory codependently.

Mengdan Sun^1,2, Xinyue Yang^3,4, Chundi Wang^5,6

¹Department of Psychology, Soochow University, Suzhou, China.

Journal of Vision

|September 6, 2024

Summary

Visual working memory (WM) for color is biased by both learned category knowledge and concurrent distractors. These biases interact flexibly, not additively, and originate from perceptual processes.

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Area of Science:

Cognitive Psychology
Neuroscience
Visual Perception

Background:

Visual working memory (WM) is not always veridical and can be biased by various factors.
Color WM is influenced by category knowledge (e.g., prototypes) and contextual factors.
Previous research often studied these bias sources independently.

Purpose of the Study:

To investigate how color WM is influenced by both category priors and concurrent distractors.
To explore the interplay between category-based and inter-item interaction biases in WM.
To determine if these biases are additive or flexible.

Main Methods:

Participants retained two color items in WM.
Assessed WM representation of target colors under varying category knowledge and distractor conditions.
Analyzed biases toward category prototypes and away from distractors.

Main Results:

Color WM representations were biased toward category prototypes and away from concurrent distractors.
The relative influence of category and distractor biases varied depending on the specific color category.
Both category and distractor biases were found to arise from perceptual processes.

Conclusions:

Color WM is shaped by both learned category knowledge and contextual inter-item interactions.
The interaction between these biases is flexible and category-dependent.
Perceptual mechanisms underlie both category and distractor-induced biases in color WM.