Interictal dysphoric disorder is not specific for epilepsy but occurs with comparable prevalence and severity in people with depression with and without epilepsy.
Why this matters
Depression often accompanies epilepsy. Historically, interictal dysphoric disorder was regarded as an affective disorder that only occurred in people with epilepsy, but the epilepsy-specific nature of this disorder has recently been refuted.
These findings support topical reports that interictal dysphoric disorder should not be viewed as an epilepsy-specific condition.