Estimating Mental Health Conditions of Patients with Opioid Use Disorder

Table 5

Classification of EEG spectral activity on scalps of patients with opioid use disorders. The activity was categorized into three classes as follows:

		Frontal		Central		Temporal		Parietal		Occipital
Class 1	δ	↑	✓	↑	✓	↑	✓	↑	✓	↑	✓
	θ	↑	✓	↑	✓	↑	✓	↑	✓	↑	✗
Class 2	β	↑	✓	↑	✓	↔	✗	↔	✗	↓	✗
	γ	↑	✓	↑	✓	↔	✗	↔	✗	↓	✗
Class 3	α	↔	✗	↔	✗	↓	✗	↓	✗	↓	✗

Note that frontal electrodes included FP1, FP2, F3, F4, F7, F8, and Fz; central electrodes included T3, T4, T5, and T6; temporal were C3, C4, and Cz; parietal were P3, P4, and Pz; and occipitals were O1 and O2. ↑✓, Increases in spectral powers with statistical significance. ↑✗, Increases in spectral powers but no statistical significance. ↔✗, Neither increases nor decreases in spectral powers. ↓✗, Decreases in spectral powers with statistical significance.