Table 4.

Correlations between MRI metrics and cognitive performance in the recovery period.

Brain area	Behavioral task	Behavioral parameter	MRI metrics	Control	Stress
Amygdala	MWM	Day2 escape latency	MD	τ = 0.322	τ = −0.474*
	MWM	Day2 escape latency	RD	τ = 0.429*	τ = −0.500*
Anterior commissure	NOR-3	HI	FA	τ = 0.103	τ = 0.487*
	MWM	Trial2 escape latency	FA	τ = −0.501*	τ = −0.118
	MWM	Trial3 escape latency	MD	τ = 0.478*	τ = −0.295
	MWM	Trial3 escape latency	AD	τ = 0.454*	τ = −0.113
	MWM	Day1 escape latency	AD	τ = 0.055	τ = −0.460*
Basal ganglia	NOR-3	HI	MD	τ = 0.431*	τ = −0.051
	MWM	Trial4 escape latency	Vol	τ = −0.035	τ = −0.510*
	MWM	Day1 escape latency	Vol	τ = 0.033	τ = −0.557*
	MWM	Day4 escape latency	Vol	τ = 0.331	τ = −0.485*
	MWM	Day4 escape latency	FA	τ = 0.486*	τ = 0.103
Corpus callosum	MWM	Trial2 escape latency	FA	τ = −0.426*	τ = −0.024
	MWM	Trial3 escape latency	FA	τ = −0.408*	τ = 0.113
	MWM	Trial3 escape latency	AD	τ = −0.478*	τ = −0.033
	MWM	Day3 escape latency	MD	τ = 0.187	τ = −0.458*
	MWM	Day3 escape latency	AD	τ = 0.275	τ = −0.452*
	MWM	Day4 escape latency	AD	τ = −0.022	τ = −0.555**
External capsule	MWM	Day1 escape latency	Vol	τ = −0.143	τ = −0.522*
	MWM	Day1 escape latency	AD	τ = −0.253	τ = −0.489*
	MWM	Day3 escape latency	MD	τ = 0.416*	τ = −0.231
Inferior colliculus	MWM	Trial4 escape latency	FA	τ = 0.046	τ = 0.496*
	MWM	Day1 escape latency	FA	τ = 0.033	τ = 0.633**
	MWM	Day4 escape latency	FA	τ = −0.398*	τ = −0.077
Thalamus	MWM	Day1 escape latency	RD	τ = 0.033	τ = −0.449*
	MWM	Day2 escape latency	Vol	τ = −0.099	τ = −0.688**
	MWM	Day4 escape latency	AD	τ = 0.000	τ = −0.436*

NOR-3, novel object recognition test which was performed on the 2nd week of the recovery period; MWM, Morris water maze test, which was done on the 7th week of the recovery period; HI: habituation index; AD, axial diffusivity; FA, fractional anisotropy; MD, mean diffusivity; RD, radial diffusivity; Vol, volume; R, Pearson's correlation coefficient; τ, Kendall's tau coefficient.

^*p < 0.05;

^**p < 0.01.