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Updated: Jan 6, 2026
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Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
Published on: August 1, 2018
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Feature-based versus object-based representation in visual working memory
1School of Psychological Sciences, Tel Aviv University.
Journal of Experimental Psychology. Human Perception and Performance
|September 11, 2025
Summary
Visual working memory (WM) holds limited object information. This study found that object features like color and shape are remembered dependently, not independently, in WM.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Visual Perception
Background:
- Visual working memory (WM) is crucial for temporary information storage.
- The representation of object features within WM (dependent vs. independent) remains an active research question.
Purpose of the Study:
- To investigate whether features of objects in visual working memory are processed dependently or independently.
- To determine if remembering one object feature influences the memory of another feature.
Main Methods:
- Five experiments utilized multifeature objects (color and shape).
- Response distributions were analyzed to correlate the memory accuracy of one feature with the other.
- Area under the curve calculations were performed across different performance quintiles.
Main Results:
- Consistent evidence across all experiments demonstrated a dependency between object features in visual working memory.
- Memory for one feature was significantly correlated with memory for another feature.
Conclusions:
- Visual working memory relies on object-based representations.
- All features of an object are represented in a dependent manner within visual working memory.
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