From: The effect of duration of dependence and daily dose of tramadol in tramadol dependent patients on cognitive performance
Duration
r
P value
IQ
− 0.19
0.325
MMSE score
− 0.15
0.424
MoCA score
− 0.30
0.108
P300 latency
0.02
0.909
Reaction time (μs)
− 0.02
0.937
Deterioration index
− 0.14
0.454
Discrimination index
− 0.09
0.628