. Author manuscript; available in PMC: 2014 Mar 19.

Published in final edited form as: Psychol Med. 2012 May 14;43(1):109–117. doi: 10.1017/S0033291712001006

Table 2.

Mean (standard deviation) N170 and N250 amplitude and latency for each group, collapsed across task.

	Group
	Healthy Controls	Schizophrenia Patients	Bipolar Patients	Group Main Effect Statistics
N170 Amplitude (μV)	−5.51 (3.33)	−3.79 (2.92)	−4.70 (2.95)	F (2, 114) = 11.33, p < 0.001 HC = BD < SZ, p < 0.05
N170 Latency (ms)	151.1 (8.7)	161.8 (11.4)	159.7 (11.8)	F (2, 114) = 8.46, p < 0.001 HC < SZ = BD, p < 0.05
N250 Amplitude (μV)	−1.81 (1.82)	−0.58 (1.81)	−0.92 (2.02)	F (2, 114) = 6.99, p < 0.001 HC < BD = SZ, p < 0.05
N250 Latency (ms)	236.3 (21.4)	243.4 (21.8)	254.6 (24.5)	F (2, 114) = 6.73, p < 0.01 HC = SZ < BD, p < 0.05

HC = Healthy Controls

BD = Bipolar Disorder Patients

SZ = Schizophrenia Patients