Fig. (1) (A) We arbitrarily chose the 104 channel as an example from 160 channels. (B). Grand average of time frequency map of schizophrenic patient group (n=10) during the odd ball task in channel 104. (C). Grand average of time frequency map of control group (n=10) during the odd ball task in channel 104. Beta ERD was increased in patients group compared to controls during the odd ball task.