Table 2. FA values of the 21 tracts registered in the JHU atlas.

Tracts	PD-P	PD-NP	q Value
AThR-L	0.466 ±0.015	0.475 ± 0.014	1.84E-04
AThR-R	0.468 ±0.014	0.477 ± 0.014	6.26E-07
CST-L	0.547 ±0.019	0.551 ± 0.015	1.84E-04
CST-R	0.539 ±0.018	0.547 ± 0.015	2.12E-04
Cg-L	0.453 ± 0.022	0.464 ± 0.018	2.74E-04
Cg-R	0.433 ± 0.020	0.443 ± 0.019	9.29E-05
Hpc-L	0.396 ± 0.019	0.402 ± 0.019	5.95E-03
Hpc-R	0.404 ± 0.020	0.413 ± 0.021	2.52E-03
FMa	0.531 ± 0.018	0.539 ± 0.018	2.34E-04
FMi	0.481 ±0.021	0.489 ±0.019	2.52E-03
IFOF-L	0.464 ± 0.021	0.473 ± 0.019	6.10E-04
IFOF-R	0.457 ± 0.020	0.465 ± 0.019	2.34E-04
ILF-L	0.396 ± 0.016	0.402 ± 0.016	3.14E-05
ILF-R	0.389 ± 0.015	0.395 ± 0.015	1.96E-04
SLF-L	0.423 ± 0.020	0.431 ± 0.015	2.34E-04
SLF-R	0.421 ± 0.020	0.429 ± 0.015	4.04E-04
Unci-L	0.405 ± 0.018	0.411 ± 0.016	1.16E-04
Unci-R	0.409 ± 0.017	0.416 ± 0.016	1.81E-04
SLFt-L	0.401 ± 0.021	0.409 ± 0.017	4.73E-02
SLFt-R	0.443 ± 0.022	0.449 ± 0.017	1.90E-03
BCC	0.662 ± 0.025	0.671 ± 0.030	2.52E-03

Abbreviations: AThR = anterior thalamic radiation; bCC = body of the corpus callosum; Cg = cingulum (cingulate gyrus); CST = corticospinal tract; FA = fractional anisotropy; FMa = forceps major; FMi = forceps minor; Hpc = cingulum (hippocampus); IFOF = inferior fronto-occipital fasciculus; ILF = inferior longitudinal fasciculus; JHU = Johns Hopkins University; PD-P = patients having PD with psychosis; PD-NP = patients having PD without psychosis; SLF = superior longitudinal fasciculus; SLFt = superior longitudinal fasciculus (temporal part); Unci = uncinate fasciculus.