Table 4.

Correlations between new neurons, microglia, and behavioral scores on the 2nd session.

Age	Total cell #			Immediate probe		Delayed probe		2nd vs. 1st Memory Session Diff Scores
		New Neurons	Mean PL	DI score	% Time TQ	DI score	% Time	Δ DI	Δ %t
Y	New neurons microglia	−	0.04	0.56a	0.49	−0.06	−0.27	0.02	−0.58a
	Resting	0.19	0.13	−0.05	−0.16	−0.25	−0.38	−0.43	−0.26
	Activated	−0.13	−0.39	−0.23	0.01	0.62b	0.53a	0.51a	0.50
	Phagocytic	−0.23	0.04	−0.48	−0.65b	−0.51a	−0.45	−0.11	0.00
MA	New neurons microglia	−	−0.78c	0.04	0.05	0.28	0.15	0.24	0.05
	Resting	−0.37	0.25	−0.03	0.06	−0.04	0.00	−0.04	−0.06
	Activated	0.06	0.09	−0.07	−0.11	0.03	−0.09	−0.03	0.05
	Phagocytic	−0.52a	0.46	0.13	0.05	0.04	0.00	−0.01	−0.05
A	New neurons microglia	−	−0.39	0.21	0.24	−0.05	−0.20	−0.08	−0.37
	Resting	−0.32	0.24	−0.64b	−0.77c	−0.33	−0.19	−0.31	0.56a
	Activated	−0.32	0.16	−0.49	−0.25	−0.45	−0.22	−0.33	0.06
	Phagocytic	0.09	−0.14	−0.19	−0.23	−0.25	−0.09	−0.14	0.14

^ap < 0.05,

^bp < 0.01,

^cp < 0.001.

Significant relationships are highlighted in bold.