In vivo brain 1H-MRS spectrum acquired with 30 ms-TE PRESS acquisition at 4 Tesla. Spectrum is from a 2.5 × 2.5 × 2.5 cm voxel in the parieto-occipital cortex of a healthy adult. Spectral regions denoted with brackets indicate multiplet resonance structures for each featured neurochemical. Spectrum is displayed without any filtering. Cho, choline; Cr, creatine; GABA, γ-aminobutyric acid; Gln, glutamine; Glu, glutamate; GSH, glutathione; Lac, lactate; mI, myo-inositol; NAA, N-acetylaspartate; NAAG, N-acetylaspartylglutamate; PCho, phosphorylcholine; PCr, phosphocreatine.