Functional Neural Architecture of Working Memory in Musicians: An ALE Meta-Analysis and Review

Area of Science:

• Neuroscience of Cognition
• Cognitive Psychology
• Cognitive Biology

Background:

• Musical expertise is linked to enhanced cognitive abilities and unique neural mechanisms.
• Existing research shows associations between musical training and cognitive functions.
• Neural changes in musicians, especially concerning working memory, require further investigation.

Purpose of the Study:

• To investigate functional neural activity differences between musicians and non-musicians during working memory tasks.
• To explore broader neural networks associated with working memory in musicians using meta-analytic connectivity modeling.

Main Methods:

• Conducted an activation likelihood estimation (ALE) meta-analysis of nine functional magnetic resonance imaging (fMRI) studies.
• Included 228 participants (113 musicians, 115 non-musicians).
• Performed meta-analytic connectivity modeling (MACM) to identify co-activation networks.

Main Results:

• Musicians displayed hyperactivations in the right medial frontal gyrus.
• Musicians showed hypoactivations in the right middle occipital gyrus, right precentral gyrus, left inferior parietal lobule, right claustrum, and left cerebellum.
• MACM identified distributed networks linked to various cognitive functions.

Conclusions:

• Distinct functional networks and enhanced neural efficiency in musicians may support lifelong working memory performance.
• Findings contribute to understanding the neural basis of cognitive advantages associated with musical expertise.