Table 4.

The N270 peak latency of the two groups in mismatch conditions (mean ± SD)

Latency (ms)	Task-irrelevant mismatch	Task-relevant mismatch	Conjunction mismatches
Controls
F3	280.00±12.98	280.93±12.57	277.27±10.22
F4	272.87±13.24	277.73±11.76	274.07±8.89
C3	278.13±13.72	282.20±17.11	278.47±11.83
C4	274.00±13.78	276.73±9.89	274.27±10.38
GAD
F3	270.00±17.34	273.08±17.27	272.31±20.55
F4	267.23±17.60	270.46±18.04	265.92±18.40
C3	273.92±15.95	273.62±14.86	276.69±16.91
C4	268.38±14.00	271.77±16.57	267.46±17.34

Note: Controls are healthy subjects.

Abbreviations: SD, standard deviation; GAD, generalized anxiety disorder.