Estimating Mental Health Conditions of Patients with Opioid Use Disorder

Figure 2

Topographic changes of θ powers in patients with opioid use disorder. (a) Examples of EEG traces representing 10 s θ 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 θ powers was increased by >76%, including FP1, FP2, F3, F4, Fz, C3, Cz, C4, T3, and T4. Open columns denote healthy controls, and solid red columns indicate the opioid group. NS, , , vs. healthy controls determined by repeated measures ANOVA followed by post hoc Scheffe test. (c) The θ powers were increased by 51–75% in F7, F8, P3, P4, Pz, O1, and O2. Open columns denote the healthy control group, and solid green columns indicate the opioid group. NS, vs. healthy control determined by repeated measures ANOVA. (d) The θ powers were increased by 11–50% in T5 and T6. Open columns denote the healthy control group, and solid brown columns indicate a low change in the opioid group. NS, vs. healthy control determined by repeated measures ANOVA. (e) Topographic correlation between increased θ oscillation (4–8 Hz) and electrodes on cortical scalps. The red area denotes for high δ powers, the green for medium δ powers, and the brown for low δ powers.

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