Table 2

Correlations analysis between behavioural measures and PET/CT¹¹C-PK11195 rates of decay, as well as immunohistochemistry OD values

	PET/CT¹¹C-PK11195uptake ratio		OD value
	Prefrontal cortex	Hippocampus	Prefrontal cortex	Hippocampus
Locomotor activity	−0.651*	−0.765^**	0.697*	0.849^**
PPI
PP2	0.586*	0.534	−0.649^**	−0.364
PP4	0.632*	0.518	−0.632*	−0.567
PP8	0.750^**	0.439	−0.814^**	−0.534
Passive avoidance
T1	−0.458	−0.588*	0.450	0.599*
T	0.467	0.598*	−0.473	−0.648*
Active avoidance (total number of conditioned responses/500)	0.701*	0.816^**	−0.789^**	−0.802^**

Linear correlation analysis was used to calculatedata.
*P<0.05;**P<0.01.
OD, optical density; PET,positron emission tomography; PPI, prepulse inhibition.