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. 2012 Jan 17;7(1):e29909. doi: 10.1371/journal.pone.0029909

Figure 3. Grand-averaged event related potentials (ERPs) elicited by classic oddball at electrode Cz.

Figure 3

Grand-averaged ERP waveforms at electrode Cz and thirty-one channel ERP topographical maps recorded in the patient (B) and controls (A). The latency is referred at the time point at which the positive peak between 300 and 700 ms latency is maximum at Cz electrode site. ERP waveform from the patient revealed a significantly higher P3 at the left posterior and central sites in response to right stimulation. No P3 could be recorded after left ear stimuli.