TABLE 1.

Hearing thresholds in +/+ and Ts/+ mice

Thresholds are given as mean ± S.D. in db SPL; weeks, weeks of age; NS, not significant; n, number of animals tested.

Weeks	Genotype	Click	8 kHz	16 kHz	32 kHz	n
4	+/+	35 ± 3	25 ± 6	12 ± 3	38 ± 4	6
	Ts/+	62 ± 21	45 ± 17	27 ± 15	56 ± 13	12
	p	<0.01	<0.05	NS	NS
8	+/+	36 ± 8	26 ± 4	20 ± 9	35 ± 5	6
	Ts/+	74 ± 8	70 ± 12	53 ± 18	78 ± 12	10
	p	<0.001	<0.001	<0.001	<0.001
30	+/+	42 ± 6	37 ± 8	21 ± 9	60 ± 14	7
	Ts/+	72 ± 22	63 ± 21	44 ± 24	80 ± 17	14
	p	<0.01	<0.05	<0.05	NS
52	+/+	54 ± 14	55 ± 9	29 ± 10	91 ± 2	5
	Ts/+	65 ± 26	69 ± 19	43 ± 25	95 ± 4	8
	p	NS	NS	NS	NS