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  Changes in occipital GABA, glutamate/glutamine concentrations and cerebral oxygen metabolism in response to visual stimulation

Chan, K., Lu, H., Lin, Z., Henning, A., & Thomas, B. (2022). Changes in occipital GABA, glutamate/glutamine concentrations and cerebral oxygen metabolism in response to visual stimulation. In Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022).

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-5CBE-A Version Permalink: https://hdl.handle.net/21.11116/0000-000B-2B16-D
Genre: Meeting Abstract

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https://archive.ismrm.org/2022/0307.html (Abstract)
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 Creators:
Chan, KL, Author
Lu, H, Author
Lin, Z, Author
Henning, A1, Author           
Thomas, BP, Author
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: The relationship between brain’s GABA and glutamate/glutamine (Glx) concentrations measured by 1H MRS, hemodynamic response, neural signaling, and behavior is poorly understood. Here, the relationship between MRS-detectable GABA and Glx signals and MR hemodynamic contrasts during visual stimulation were examined. It was observed that changes in GABA+ and Glx were positively correlated with the BOLD response and negatively correlated with their levels at rest. Additionally, task GABA+ concentrations were negatively correlated with cerebral metabolic rate of oxygen (CMRO2). Together, these results suggest shifts in the inhibitory/excitatory balance and metabolism to maintain homeostasis in the brain.

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 Dates: 2022-05
 Publication Status: Published online
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Title: Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022)
Place of Event: London, UK
Start-/End Date: 2022-05-07 - 2022-05-12

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Title: Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting (ISMRM 2022)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 0307 Start / End Page: - Identifier: -