Table 3.

Differences between cases and controls in terms of informativeness

Participants AD cases	On-topic condition Score	Off-topic condition Score	Blank screen condition Score
A	84.25	65.24	26.33*
B	67.42	29.71*	35.30*
C	76.32	70.33	73.11
D	82.54	72.12	84.37
E	63.22	39.37*	47.14*
M (SD) controls	86.49 (16.53)	82.91 (11.96)	85.27 (15.10)

Differences between each AD case and the control group are marked for p<0.05. P values indicate an estimated percentage of the control population that would have lower scores than the cases.