Table 2.

Speaking-induced suppression and peak latency difference between the speaking and listening conditions

	Patients with Alzheimer’s disease (n = 20, mean ± SEM)		Healthy controls (n = 12, mean ± SEM)
	Left hemisphere	Right hemisphere	Left hemisphere	Right hemisphere
SIS, M50	−0.20 ± 0.11	−0.23 ± 0.13	−0.05 ± 0.14	−0.20 ± 0.17
SIS, M100	−0.06 ± 0.10	−0.04 ± 0.12	0.41 ± 0.13	0.16 ± 0.16
SIS, M200	−0.01 ± 0.09	0.16 ± 0.09	0.05 ± 0.12	−0.01 ± 0.12
Latency diff, M50 (ms)	−2.2 ± 4.5	−12.5 ± 5.1	−5.1 ± 5.8	−12.3 ± 6.5
Latency diff, M100 (ms)	−27.2 ± 5.7	−29.8 ± 7.6	−18.0 ± 7.4	−17.0 ± 9.9
Latency diff, M200 (ms)	−24.2 ± 6.4	−33.7 ± 7.8	−10.0 ± 8.3	−36.3 ± 10.0

Latency diff = peak latency difference between the speaking and listening conditions.