Table 4 Functional neuroimaging findings in panic disorder [electroencephalography]
   Study | Subjects | No. of subjects (female) | Mean age (SD) | Comorbid Depression | Comorbid Agora-phobia | Medication status | Findings |
|---|---|---|---|---|---|---|---|
Eser, 2009 [27] | HC (CCK-4 injection) | 77 (0) | Â | None | None | None taking medication | No correlations between CCK-4 induced panic symptom severity and loudness dependency of auditory evoked potentials |
Lepola, 1990 [22] | PD | 31 (23) | 37 (Range 16–52) |  |  | At some period treated with psychotropic agents, n = 32 | Slow-wave activity▲ in 13 patients. |
Stein, 1989 [28] | PD | 35 (24) | 35 (8) |  |  | n = 33 free of all psychotropic drugs for a minumum of 2 weeks. n = 2 has taken a low dose of a benzodiazepine 2 days before evaluation. | n = 5 (14%) had nonspecific abnormal EEGs. None had evidence supportive of an ictal process. |