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Table 2 ERP P300 amplitude, latency and reaction time data

From: Auditory target processing in methadone substituted opiate addicts: The effect of nicotine in controls

  Methadone substituted opiate addicts Control subjects
  whole group without concomitant non-opioid drug use with concomitant non-opioid drug use whole group without nicotine consumption with nicotine consumption
  mean (sd) mean (sd) mean (sd) mean (sd) mean (sd) mean (sd)
P300 Amplitude (μV)       
Fz 23.3 (14.3) 22.5 (14.1) 23.8 (15.1) 25.1 (13.3) 30.9 (10.9) 18.3 (12.9)
Cz 27.6 (14.6) 26.5 (15.5) 28.3 (14.2) 26.9 (15.5) 34.2 (12.8) 18.4 (14.1)
Pz 33.4 (12.3) 32.9 (14.4) 33.7 (11.1) 31.7 (14.5) 37.7 (12.7) 24.8 (13.5)
P300 Latency (ms)       
Fz 327 (36) 337 (39) 322 (34) 335 (20) 331 (18) 340 (21)
Cz 333 (43) 339 (42) 330 (45) 335 (23) 332 (24) 339 (22)
Pz 339 (40) 348 (33) 333 (44) 339 (29) 339 (26) 338 (32)
Reaction Time (RT)       
RT (ms) between subjects 409 (97) 442 (87) 390 (98) 422 (101) 397 (93) 450 (104)
Standard deviation of RT within subjects (ms) 76 (29) 87 (34) 70 (24) 73 (29) 64 (17) 83 (34)