TABLE I.

Demographic information (i.e., age, scores of MMSE and digit-span, and air-conducted audiometric thresholds) of individual ENH and EHI listeners (ENH = the elderly normal-hearing; EHI = the elderly hearing-impaired; MMSE = Mini-Mental Status Exam; PTA 1,2,4 or PTA 0.5,1,2 = Pure-tone thresholds averaged across 1, 2, 4 kHz or across 0.5, 1, 2 kHz).

	Frequency
	Age	MMSE	Digit spans	250 Hz	500 Hz	1000 Hz	1500 Hz	2000 Hz	3000 Hz	4000 Hz	6000 Hz	8000 Hz	PTA 1,2,4	PTA 0.5,1,2
ENH 1	65	29	21	15	15	15	15	20	15	10	15	40	15	17
ENH 2	79	30	18	25	20	15	10	5	10	15	15	35	12	13
ENH 3	72	28	20	10	5	10	10	5	5	10	15	0	8	7
ENH 4	69	30	14	20	25	20	20	20	20	25	25	40	22	22
ENH 5	69	29	17	15	15	10	13	15	15	30	35	25	18	13
ENH 6	66	30	16	10	15	5	15	10	25	35	35	30	17	10
ENH 7	63	30	17	20	20	20	20	20	25	25	35	30	22	20
ENH 8	64	29	18	15	10	10	5	5	10	5	5	5	7	8
ENH 9	69	30	16	20	20	20	10	15	15	10	15	25	15	18
ENH 10	79	29	13	5	5	10	15	15	10	15	15	40	13	10
ENH 11	72	28	17	20	20	15	15	10	15	20	5	5	15	15
ENH 12	67	25	17	15	10	10	5	10	20	30	30	25	17	10
ENH 13	67	30	20	5	5	5	8	10	20	20	10	20	12	7
ENH 14	79	28	17	10	25	20	5	10	20	15	35	15	15	18
ENH 15	75	29	16	0	5	5	10	10	25	30	20	15	15	7
mean	70	29	17	14	14	13	12	12	17	20	21	23	15	13
EHI 1	61	30	12	20	20	25	35	35	60	65	65	65	42	27
EHI 2	80	29	21	20	25	30	35	40	45	65	65	75	45	32
EHI 3	63	30	22	40	40	40	35	50	65	65	60	65	52	43
EHI 4	67	29	13	20	30	40	42	45	55	50	55	75	45	38
EHI 5	78	29	18	40	35	35	45	55	60	65	55	65	52	42
EHI 6	63	30	14	30	35	45	50	50	50	60	60	60	52	43
EHI 7	75	28	13	20	25	25	40	45	50	55	65	75	42	32
EHI 8	81	29	13	40	35	30	35	40	45	60	70	75	43	35
EHI 9	71	29	19	25	25	30	35	35	45	60	50	60	42	30
EHI 10	81	29	13	20	25	35	45	55	55	60	65	75	50	38
EHI 11	71	29	10	15	25	25	35	45	45	50	50	60	40	32
EHI 12	76	28	14	20	35	45	55	60	50	55	60	70	53	47
EHI 13	68	29	14	20	25	35	40	45	45	55	60	60	45	35
EHI 14	64	29	9	20	30	40	45	50	55	60	65	60	50	40
EHI 15	70	29	16	15	20	45	45	60	65	65	70	70	57	42
mean	71	29	15	24	29	35	41	47	53	59	61	67	47	37