Effect of speech rate and complexity on sentence comprehension in Alzheimer’s disease

Figures & data

Figure 1 . Example of Sentence Picture Matching Task Stimulus: ‘The child across from the mother served the father.’

Table 1 . Sentence type examples.

Sentence Type	Sentence Example
Active	The child across from the mother served the father.
Passive	The child was served by the father.
Subject-Object	The mother who the child bumped into served the father.

Table 2 . Comprehension accuracy by condition.

	Normal Speech Rate			Slow Speech Rate			Comprehension by Sentence Type^a
P#	Active	Passive	Subject-Object	Active	Passive	Subject-Object	Active	Passive	Subject-Object
1	10	9	8	10	9	8	10	9	8
2	3	4	4	5	7	4	4	5.5	4
3	4	3	4	4	2	2	4	2.5	3
4	3	6	2	6	5	2	4.5	5.5	2
5	5	7	2	5	5	6	5	6	4
6	7	9	4	.^b	.	.	7	9	4
7	7	9	5	9	9	4	8	9	4.5
8	10	10	9	10	10	6	10	10	7.5
9	9	9	7	10	9	8	9.5	9	7.5
10	7	10	5	5	9	5	6	9.5	5
11	5	7	4	4	2	4	4.5	4.5	4
12	8	10	6	9	5	8	8.5	7.5	7
13	6	5	3	6	8	1	6	6.5	2
14	7	6	5	8	7	5	7.5	6.5	5
Means (out of 10)	6.5	7.42	4.86	7.0	6.69	4.85	6.75	7.14	4.82

^a Collapsing across speech rate.

^b Due to scheduling issues, the data for the slow rate condition could not be collected for participant 6.