Table 4.

Correlations Between Formant Frequencies and Arch Dimensions

	Arch Width		Arch Depth		Arch Length		Perimeter
	r	P- Value	r	P- Value	r	P- Value	r	P- Value
F1
/a/	−0.21	.23	−0.02	.92	0.02	.89	−0.11	.54
/i/	−0.25	.14	0.06	.74	−0.28	.10	−0.31	.07
/o/	0.16	.36	0.16	.36	−0.06	.72	−0.08	.63
/u/	0.24	.16	0.07	.68	0.06	.76	0.35	.04*
F2
/a/	−0.28	.10	−0.11	.55	−0.06	.74	−0.02	.89
/i/	−0.06	.74	−0.20	.24	−0.05	.79	0.01	.97
/o/	0.09	.61	0.39	.02*	0.10	.58	0.11	.55
/u/	0.27	.13	0.32	.06	0.06	.72	0.24	.18
F3
/a/	−0.33	.05	−0.43	.01*	−0.42	.01*	−0.44	.01*
/i/	−0.13	.45	−0.65	.00*	−0.12	.50	−0.23	.18
/o/	−0.37	.03*	0.00	.99	−0.29	.09	−0.37	.03*
/u/	−0.26	.15	−0.35	.05*	−0.19	.28	−0.26	.15
F4
/a/	−0.12	.48	−0.11	.55	−0.38	.02*	−0.29	.09
/i/	−0.22	.24	−0.10	.60	0.10	.58	−0.25	.17
/o/	−0.20	.25	0.03	.85	−0.48	.00*	−0.28	.10
/u/	0.07	.69	−0.28	.13	−0.42	.02*	0.07	.71

^*Statistically significant.