Table B2.

Unpaired two-tailed t-test results comparing the acoustic measurements for each shape and attribute in the accenting vs. deaccenting conditions, prior to the addition of the cough.

	Shape 1	Attribute 1	Shape 2	Attribute 2
Duration (ms)	t=0.013 n.s.	t=2.55 p<0.05*	t=0.822 n.s.	t=1.68 p<0.10°
Mean F0 (Hz)	t=0.196 n.s.	t=7.33 p<0.001***	t=1.68 p<0.10°	t=1.83 p<0.10°
Minimum F0 (Hz)	t=0.577 n.s.	t=2.84 p<0.01**	t=0.918 n.s.	t=2.3 p<0.05*
Maximum F0 (Hz)	t=1.04 n.s.	t=3.21 p<0.005*	t=0.689 n.s.	t=0.928 n.s.
Mean intensity (dB)	t=1.21 n.s.	t=3.46 p<0.05*	t=1.53 n.s.	t=5.82 p<0.001***
Maximum intensity (dB)	t=0.92 n.s.	t=3.10 p<0.01*	t=2.06 p=0.05*	t=3.78 p<0.001***

°Marginally significant;

^*Significant at 0.05 level;

^**Significant at 0.01 level;

^***Significant at 0.001 level.