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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)