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. Author manuscript; available in PMC: 2010 Feb 13.

Published in final edited form as: Psychophysiology. 2009 Jun 8;46(5):1059. doi: 10.1111/j.1469-8986.2009.00845.x

Table 1.

Descriptive Statistics of Mean (SD) for P50, N100, and P200 Ratio, Difference Score, Amplitudes, and Latencies

	P50	N100	P200
Gating measure
Ratio	55.23 (40.84)	48.03 (22.86)	46.90 (19.78)
Δ_S1S2 (µV)	1.37 (1.34)	−4.06 (2.92)	6.68 (4.66)
Amplitude (µV)
S1	2.68 (1.41)	−7.26 (3.53)	11.64 (5.50)
S2	1.31 (1.01)	−3.20 (1.72)	4.96 (1.99)
Latency (ms)
S1	61.21 (11.24)	104.64 (12.72)	200.96 (27.09)
S2	58.76 (10.81)^a	95.13 (13.99)	183.84 (29.43)
Δ_S1S2 (ms)	1.12 (5.50)^a	8.86 (18.01)	17.88 (27.31)

Note: Δ_S1S2 difference score for amplitude (µV) and latency (ms).

^a

n = 50 due to absence of P50 latency for S2 with optimal P50 gating.