Table 4:

Correlations between biomarkers and episodic memory

	RAVLT Learning^*		RAVLT 30 Minutes’ Recall
	R		R
	S1	S2	S1	S2
Hippocampus	.49^§	.70^†^‡	.35	.71^†^‡
A: Middle temporal LH	.51^†	.38	.33	.22
B: Inferior parietal LH	.67^†	.44^§	.48^‡	.53^†
C: Entorhinal LH	.66^†	.64^†^‡	.46	.64^†^‡
D: Precuneus (toward isthmus) LH	.50^†	.48^†	.15	.44^†
E: Superior frontal LH	.43	.42	.24	.38
A: Middle temporal RH	.49^§	.34	.16	.39^†
B: Inferior parietal RH	.56^†	.49^†	.53^†	.60^†
C: Entorhinal RH	.35	.50^†	.23	.53^†
D: Precuneus (toward isthmus) RH	.28	.54^†	.04	.54^†
E: Superior frontal RH	.38	.36	.29	.22
Tau	−.28	−.60^†	−.09	−.73^†^‡
Aβ42	.09	.42	.33	.35
APOE	−.09	−.17	−.34	−.18

Note:—S1 indicates Sample 1; S2, Sample 2; RAVLT, Rey Auditory-Verbal Test; APOE, apolipoprotein E; Aβ42; amyloid beta 42 peptide; LH, left hemisphere; RH, right hemisphere; R, Pearson r.
* RAVLT learning is the sum of correct responses across learning trials 1 to 5. APOE is quantified as the number of ε4 alleles (0, 1, or 2). For tau, cutoff criteria are used in the analyses (0 for nonpathologic, 1 for pathologic), whereas for Aβ42 the actual values are used because only 2 participants in Sample 1 had pathologic values.
† P < .05.
‡ P < .05 when the effect of age is controlled for.
§ P < .06.