Mismatch Negativity and P50 Sensory Gating in Abstinent Former Cannabis Users

Figure 1

(a) Mismatch negativity (MMN) waveforms at Fz displayed for each condition for ex-cannabis users (grey line) and nonuser controls (black line). (b) Mastoid reference unsubtracted ERP waveforms at Fz to standard (solid line) and deviant tones (dashed lines) for ex-cannabis users (grey lines) and nonuser controls (black lines). Amplitude is shown in μV on the -axis and time in milliseconds along the -axis.

(a)

(b)