Estimating Mental Health Conditions of Patients with Opioid Use Disorder

Figure 3

Topographic changes of α powers in patients with opioid use disorder. (a) Examples of EEG traces representing 10 s α oscillations from a healthy control (top) and a patient with opioid use disorder. Horizontal scale bar, 1 s; vertical scale bar, 10 μV. (b) The α powers was reduced by 11–50% in O1, O2, P3, P4, T5, T6, and Pz. Open columns denote for the healthy control group and solid blue columns for a reduction of α oscillations in the opioid group. NS, vs. healthy controls determined by repeated measures ANOVA. (c) There was no change of α powers in FP1, FP2, F3, F4, F7, F8, Fz, T3, C3, Cz, C4, or T4. Open columns denote for the healthy control group, and zebra-striping columns for the opioid group. NS, vs. healthy control determined by repeated measures ANOVA. (d) Topographic correlation between reduced α oscillation (8–12 Hz) and electrodes on the scalp. The dark area denotes for a low reduction of α powers.

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