Table 8.

Mean gamma-amino-butyric-acid concentration (mmol/L) at different doses of pregabalin

ROI	Pregabalin dose
	0 mg	75 mg	225 mg	450 mg
rACC	0.36 (± 0.24)	0.53 (± 0.51)	0.28 (± 0.19)	0.28 (± 0.15)
DLPFC	0.37 (± 0.16)	0.32 (± 0.18)	0.38 (± 0.22)	0.33 (± 0.16)
Thalamus left	0.53 (± 0.40)	0.41 (± 0.16)	0.63 (± 0.39)	0.45 (± 0.24)
Right thalamus	0.39 (± 0.34)	0.31 (± 0.19)	0.36 (± 0.17)	0.39 (± 0.17)

Data are presented as the mean ± SD