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- W4296156483 abstract "Abstract Functional magnetic resonance spectroscopy (fMRS) can be used to investigate neurometabolic responses to external stimuli in-vivo, but findings are inconsistent. We performed a systematic review and meta-analysis on fMRS studies of the primary neurotransmitters Glutamate (Glu), Glx (Glutamate + Glutamine), and GABA. Data were extracted, grouped by metabolite, stimulus domain, and brain region, and analysed by determining standardized effect sizes. The quality of individual studies was rated. When results were analysed by metabolite type small to moderate effect sizes of 0.29-0.47 (p < 0.05) were observed for changes in Glu and Glx regardless of stimulus domain and brain region, but no significant effects were observed for GABA. Further analysis suggests that Glu, Glx and GABA responses differ by stimulus domain or task and vary depending on the time course of stimulation and data acquisition. Here, we establish effect sizes and directionality of GABA, Glu and Glx response in fMRS. This work highlights the importance of standardised reporting and minimal best practice for fMRS research." @default.
- W4296156483 created "2022-09-17" @default.
- W4296156483 creator A5007581269 @default.
- W4296156483 creator A5023877905 @default.
- W4296156483 creator A5025672631 @default.
- W4296156483 creator A5051762550 @default.
- W4296156483 creator A5075585675 @default.
- W4296156483 creator A5091121842 @default.
- W4296156483 date "2022-09-08" @default.
- W4296156483 modified "2023-09-26" @default.
- W4296156483 title "Functional MRS studies of GABA and Glutamate/Glx – a systematic review and meta-analysis" @default.
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