Table 1.
Demographic description of the two subject groups and outcomes in cognitive architecture.
Figure 1.
DSST raw scores of the younger and the older group in 10 consecutive trials in the DSST.
Note the difference in base line performance between groups, but the similar increase in performance in both groups. Vertical bars indicate 95% confidence intervals.
Figure 2.
Histogram of the raw (left) and modified gain scores (right) of the younger and older group.
Note the large overlap in gain scores for younger and older subjects in both gain measures.
Figure 3.
Exemplary performance curves of 10 consecutive trials in the DSST of 15 randomly selected younger subjects (left) and 15 randomly selected older subjects (right).
Note differences in baseline and in interindividual performance variation in both groups.
Figure 4.
Inconsistency values for DSST raw gain scores for the younger and the older group in the 2nd to 9th trial.
Note the similar inconsistency in all trials for both groups. Vertical bars indicate 95% confidence intervals.
Figure 5.
Interindividual variability in DSST raw gain scores for the younger and the older group in the 2nd to 10th trial.
Note the similar gain in the first 4 trials and increasing differences in the later trials. Vertical bars indicate 95% confidence intervals.
Table 2.
Correlations between modified gain scores and measures of cognitive architecture.
Table 3.
Correlations between modified gain scores and personality traits.