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Abstract #1920

The anterior cingulate gyrus exhibits an excitatory-inhibitory balance that correlates with working memory

Xin Hu1, Min Zhao1, Yuxi Liu1, Richard A.E. Edden2, Weibo Chen3, Fuxin Ren1, and Fei Gao1
1Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China, 2Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Baltimore, MD, United States, 3Philips Healthcare, Shanghai, China, Shanghai, China

Synopsis

Keywords: Neurotransmission, Spectroscopy

Motivation: Examining the impact of the excitatory-inhibitory balance on cognitive function in healthy individuals holds great significance in research.

Goal(s): Exploring the excitatory-inhibitory balance at the neurotransmitter level and studying the relationship between excitatory-inhibitory balance and cognitive functions.

Approach: The study involved the collection of glutamate and γ-aminobutyric acid using magnetic resonance spectroscopy in 268 healthy participants, alongside the assessment of cognitive function in the subjects.

Results: In the anterior cingulate cortex, we observed a positive correlation between glutamate and γ-aminobutyric acid levels. Additionally, we found that a higher ratio of excitatory balance was associated with improved working memory performance at this specific location.

Impact: This study enhances our understanding of the excitatory-inhibitory balance at the neurotransmitter level and identifies a correlation between the level of excitatory inhibition and cognitive function. These findings provide valuable insights into the impact of excitatory inhibition on cognitive function.

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Keywords