Table 3.
Narrative Language Profiles and Lexical Properties of Nouns and Verbs.
| PPA-G (n=12) |
PPA-L (n=11) |
PPA-S (n=12) |
Controls (n=12) |
Omnibus Significance |
|
|---|---|---|---|---|---|
| Narrative Language Profiles (Northwestern Narrative Language Analysis) | |||||
| Words Per Minute | 73.27C,L,S (22.62) |
112.00 (23.74) |
118.13 (28.66) |
131.70 (17.66) |
*** |
| Mean Length of Utterance | 8.02C (1.72) |
9.23 (2.34) |
9.70 (2.85) |
11.53 (2.10) |
** |
| % Grammatical Sentences | 62.61C,L (27.17) |
84.68 (10.18) |
75.77C (16.00) |
90.18 (6.70) |
* |
| Open: Closed Ratio | 0.94 (0.10) |
0.87 (0.07) |
0.80C,G (0.11) |
0.96 (0.10) |
** |
| Noun: Verb Ratio | 1.48 (0.49) |
1.25 (0.35) |
1.00C,G (0.46) |
1.46 (0.24) |
** |
| Total Nouns Produced | 56.75 (37.17) |
48.09C (20.00) |
33.08C (22.32) |
73.67 (18.65) |
** |
| Total Verbs Produced | 38.42 (20.40) |
41.18 (20.07 |
35.42 (25.79) |
51.58 (14.70) |
n.s. |
| Lexical Properties of Nouns and Verbs | |||||
| Log Lexical Frequency: Nouns | 7.80 (0.76) |
7.75 (1.17) |
9.57C,G,L (0.45) |
7.36 (0.47) |
*** |
| Log Lexical Frequency: Verbs | 11.35 (0.68) |
11.14 (0.68) |
11.07 (0.46) |
10.92 (0.68) |
n.s. |
| Mean Length in Phonemes: Nouns | 4.86C (0.51) |
5.27 (0.70) |
4.08C,G,L (0.33) |
5.57 0.42 |
*** |
| Mean Length in Phonemes: Verbs | 3.72S (0.30) |
3.84 (0.34) |
4.01 (0.17) |
4.02 (0.39) |
* |
The ‘Narrative Language Profile’ measures, calculated using the Northwestern Narrative Language Analysis system, were derived from the full narrative samples. The measures of ‘Lexical Properties of Nouns and Verbs’ were derived from a subset of the data in some participants; see Methods for details. Values provided are means (standard deviations).
C
= significantly impaired relative to control group (p <.05)
G
= significantly impaired relative to PPA-G group (p <.05)
L
= significantly impaired relative to PPA-L group
S
= significantly impaired relative to PPA-S group (p < .05); omnibus significance levels
*
= p < .05
**
= p < .01
***
= p < .001, n.s. = not significant