Table 4.

Correlation Between Changes In FA Values And Frontal Lobe Function As Well As Changes In FA Values And Depressive Symptoms (N=12)

		HAM-D	BDI	WCST				WFT		CST
CA	TE	PEN	DMS	Phoneme	Category	Part1	Part2	Part3
FA in the left middle frontal gyrus	Pearson’s correlation	−0.451	−0.204	0.030	0.391	0.471	0.012	−0.757	−0.290	−0.658	−0.715	−0.668
p	0.141	0.524	0.926	0.209	0.123	0.971	0.004	0.360	0.020	0.009	0.018
FA in the right middle frontal gyrus	Pearson’s correlation	0.154	0.151	0.191	0.081	0.115	−0.328	−0.698	−0.154	−0.629	−0.516	−0.679
p	0.633	0.639	0.552	0.803	0.722	0.298	0.012	0.632	0.028	0.086	0.015
FA in the left superior frontal gyrus	Pearson’s correlation	−0.005	0.183	−0.021	0.226	0.405	0.067	0.000	−0.320	0.167	−0.039	0.182
p	0.988	0.570	0.949	0.481	0.192	0.837	0.999	0.310	0.605	0.905	0.571
FA in the right superior frontal gyrus	Pearson’s correlation	−0.265	−0.201	0.533	0.025	0.126	−0.548	−0.138	−0.146	−0.403	−0.538	−0.232
p	0.405	0.532	0.074	0.939	0.697	0.065	0.670	0.652	0.194	0.071	0.468

Notes: In the region of interest (ROI) analysis, none of the fractional anisotropy (FA) increases in any region were correlated with increases in HAM-D scores, BDI scores, or the improvement of any frontal lobe function (n = 12). The amount of changes in FA values and frontal lobe function was calculated by post-pre comparisons.

Abbreviations: HAMD, Hamilton Depressive Rating Scale; BDI, Beck Depression Inventory; WCST, Wisconsin Card Sorting Test; CA, categories achieved; TE, total errors; PEN, the Perseverative Errors of Nelson; DMS, Difficulties of Maintaining Set; WFT, Word Fluency Test; CST, Color Stroop Test; FA, fractional anisotropy.