Table 5. Principal component factor analysis of stress-induced CORT and exploratory and sensory/motor measures.

An unrotated principal component factor analysis of exploratory and sensorimotor behaviors and CORT levels reveals a primary and secondary factor explaining 27% and 15% of the total variance, respectively.

	Factor 1	Factor 2
Open field: total entries	0.65	−0.16
Open field: % internal entries	0.42	−0.14
Open field: run speed	−0.58	−0.09
Light/Dark discrimination: time in dark	−0.18	0.36
Light/Dark discrimination: latency to enter light	−0.45	0.01
Balance beam: latency to fall	−0.21	0.64
Balance beam: distance travelled	0.05	0.82
Screen Hang: latency to fall	−0.07	0.78
Screen Hang: # of crossings	−0.12	0.76
Balance Pole: latency to fall	0.33	0.03
Hotplate	0.12	−0.03
EPM: closed entries	0.80	0.06
EPM: open entries	0.86	0.20
EPM: reentries	0.11	0.09
EPM: total entries	0.91	0.14
EPM: % open entries	0.82	0.20
CORT	0.54	−0.18
eiganvalue	4.53	2.60
% Variance Explained	27%	15%