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. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Neurobiol Aging. 2008 Dec 4;31(11):1975–1990. doi: 10.1016/j.neurobiolaging.2008.10.010

Table 1.

Demographic and behavioral data for the High (n = 8) and Low (n = 8) memory performance subgroups.

High Low p
Age (years) 70.0 ± 10.3 72.9 ± 9.3 0.57
Education (years) 16.4 ± 2.4 15.3 ± 2.4 0.11
Sex 6M, 2F 3M, 5F 0.13
%Correct—congruous 97 ± 2 94 ± 5 0.13
%Correct—incongruous 99 ± 2 99 ± 1 0.83
RT—Congruous New (ms) 1018 ± 187 1330 ± 323 0.04*
RT—Congruous Old 620 ± 136 907 ± 239 0.01*
ΔRT—congruous (New–Old) 399 ± 168 423 ± 184 0.79
RT—Incongruous New (ms) 1136 ± 182 1436 ± 291 0.051
RT—Incongruous Old 877 ± 239 1195 ± 274 0.03*
ΔRT—incongruous (New–Old) 260 ± 136 240 ± 169 0.80
Free recall—all words (%) 16 ± 6 11 ± 6 0.14
Cued-recall—congruous (%) 93 ± 5 71 ± 14 0.001*
Cued-recall—incongruous (%) 14 ± 22 0 0.09
Recognition—congruous (%) 97 ± 4 85 ± 13 0.03*
Recognition—Incongruous (%) 86 ± 17 47 ± 30 0.006*

RT, Reaction time.

*

p < 0.05 (t-tests, except chi-square test for categorical variable ‘sex’).