Table 3 P50 suppression amplitudes of S1, S2, and S1/S2 and latencies at different time points

Trial

Mean amplitude (SD)

S1 amplitude

1.65 (1.01)

1.42 (.68)

1.98 (1.26)

1.67 (1.38)

S1 latency

61.35 (10.39)

62.67 (11.40)

63.33 (9.06)

62.67 (9.95)

S2 amplitude

1.00 (1.04)

.88 (.70)

1.02 (.89)

.74 (.52)

S2 latency

59.27 (15.45)

65 (9.97)

67.75 (14.44)

66.22 (14.12)

S1/S2 ratio

.58 (.55)

.73 (.50)

.81 (.85)

.65 (.52)