AUTHOR=Shen Jun , Shenkar Dina , An Li , Tomar Jyoti Singh
TITLE=Local and Interregional Neurochemical Associations Measured by Magnetic Resonance Spectroscopy for Studying Brain Functions and Psychiatric Disorders
JOURNAL=Frontiers in Psychiatry
VOLUME=11
YEAR=2020
URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2020.00802
DOI=10.3389/fpsyt.2020.00802
ISSN=1664-0640
ABSTRACT=
Magnetic resonance spectroscopy (MRS) studies have found significant correlations among neurometabolites (e.g., between glutamate and GABA) across individual subjects and altered correlations in neuropsychiatric disorders. In this article, we discuss neurochemical associations among several major neurometabolites which underpin these observations by MRS. We also illustrate the role of spectral editing in eliminating unwanted correlations caused by spectral overlapping. Finally, we describe the prospects of mapping macroscopic neurochemical associations across the brain and characterizing excitation–inhibition balance of neural networks using glutamate- and GABA-editing MRS imaging.