Table 1 Subject demographics, PET and MRS results.

From: The relationship between glutamate, dopamine, and cortical gray matter: A simultaneous PET-MR study

Subjects (N = 28)

Mean (SD) or %

Age (years)

23.8 (4.7)

Female

59.30%

Tobacco

10.70%

Cannabis

17.90%

Ethnicity

Black African

Chinese

Indian

White

Other

 

11.10%

11.10%

22.20%

37.10%

18.50%

Right-handed

88.90%

 

Placebo [mean (SD)]

Amphetamine [mean (SD)]

BPND whole striatum

2.52 (0.29)

2.01 (0.29)

BPND sensorimotor striatum

2.59 (0.32)

1.9 (0.28)

BPND associative striatum

2.43 (0.29)

2.06 (0.31)

BPND limbic striatum

2.95 (0.54)

2.28 (0.42)

Glx in anterior cingulate cortex

20.84 (3.89)

21.79 (3.5)

GM proportion in ACC voxel

62.3% (15%)

63.6% (7.2%)

WM proportion in ACC voxel

15.6% (19.6%)

12.2% (6%)

CSF proportion in ACC voxel

22% (9.8%)

23.3% (8.5%)

  1. ACC Anterior cingulate cortex, BPND Nondisplaceable binding potential, CSF Cerebrospinal fluid, Glx Glutamate+glutamine, GM Gray matter, SD Standard deviation, WM White matter.