Table 2.

Zero-order correlation matrix of speech variables for controls (italicized) and patients.

	1.	2.	3.	4.	5.	6.	7.	8.	9.	10.	11.	12.
SPEECH PRODUCTION
1. Word Count		−0.83	0.57	−0.04	0.14	0.09	−0.27	−0.55	−0.04	0.44	0.20	−0.47
2. Pause Length	−0.46		−0.71	0.01	−0.06	0.11	0.22	0.49	0.19	−0.66	−0.21	0.65
3. Pause Number	0.50	−0.80		−0.51	−0.12	−0.41	−0.59	−0.58	−0.25	0.32	0.09	−0.33
4. Utterance Length	−0.15	−0.09	−0.31		0.38	0.18	0.52	0.31	0.29	0.13	−0.01	−0.20
SPEECH VARIABILITY
5. Intonation	−0.27	0.17	−0.22	0.11		0.26	0.26	−0.03	0.32	−0.09	0.14	0.04
6. Formant 1 SD	−0.12	0.24	−0.32	0.16	−0.07		0.53	0.21	0.32	−0.08	−0.10	0.03
7. Formant 2 SD	−0.13	0.11	−0.17	0.11	0.09	0.14		0.47	0.25	−0.01	−0.22	0.11
8. Intensity	−0.41	0.20	−0.43	0.39	0.19	0.08	0.14		0.48	−0.15	−0.19	0.39
9. Emphasis	−0.30	−0.11	−0.15	0.58	0.18	0.24	0.02	0.60		−0.21	−0.24	0.17
SPEECH CONTENT
10. Idea Density	0.47	−0.40	0.36	−0.07	−0.25	−0.15	−0.02	−0.20	−0.02		0.39	−0.62
11. Vocabulary Density	0.28	−0.11	0.10	−0.08	−0.19	−0.05	0.08	−0.34	−0.20	0.50		−0.14
12. Filler	−0.34	0.26	−0.23	−0.10	0.30	0.07	0.00	0.11	−0.03	−0.56	−0.43