by measuring the concentrations of dopamine , norepinephrine , homovanillic acid , dihydroxyphenylacetic acid , gamma-aminobutyric acid , acetylcholine , and choline in different brain areas of tmt and tet-treated animals , an attempt was made to correlate these functional deficits with changes in cns neurotransmitter alterations in vivo .
C0086045
concentrations
C0006104
brain