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Neural mechanisms of feature binding in working memory
Yang Cao1,2, Fuyong Chen3, Hao Wang4
1Key Laboratory of Brain, Cognition and Education Sciences, South China Normal University, Ministry of Education, Guangzhou, China.
Communications Biology
|January 24, 2026
Summary
This study reveals a collaborative brain network for working memory (WM) feature binding. The somatomotor area, insula, and prefrontal cortex form a workspace crucial for efficiently processing and binding information.
Area of Science:
- Cognitive Neuroscience
- Neuroimaging
Background:
- Working memory (WM) is essential for cognition, but the neural basis of feature binding remains unclear.
- Effective feature binding in WM enhances cognitive efficiency.
Purpose of the Study:
- To investigate the neural mechanisms of feature binding in working memory.
- To identify brain regions and network dynamics involved in processing color-location bindings.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was used to monitor brain activity.
- Graph-based network analysis was applied to data from a WM task involving color-location binding.
Main Results:
- A collaborative network involving the somatomotor area, insula, and prefrontal cortex was identified for feature binding.
- Increased local efficiency and stronger connections within this network correlated with behavioral performance.
- The somatomotor area showed rapid responses and rich temporal information, suggesting a role in initiating binding.
Conclusions:
- A dedicated neural workspace facilitates successful feature binding in working memory.
- Interactions within this workspace, particularly involving the somatomotor area, are critical for binding efficiency.
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