Obsessive-compulsive-spectrum symptoms in patients with focal dystonia, hemifacial spasm, and healthy subjects.

This study is aimed at investigating obsessive-compulsive disorder (OCD) in three groups of patients matched for age and gender; namely, focal dystonia (FD), hemifacial spasm (HFS), and healthy-control subjects (HC). All subjects were investigated with the Structured Clinical Interview for DSM-I, the Hospital Anxiety and Depression Scale, the Symptom Checklist-90, the Yale-Brown Obsessive-Compulsive Scale, and the Structured Clinical Interview for Obsessive-Compulsive Spectrum Self-Report, Lifetime Version (SCI-OBS-SR-LT). The prevalence of OCD was significantly higher in both FD and HFS than in HC participants.

Epilepsy and bipolar disorders.

Although mood disorders represent a frequent psychiatric comorbidity among patients with epilepsy, data regarding bipolar disorders are still limited. However, these two conditions apparently share a number of biochemical and pathophysiological underpinnings, such as the kindling phenomenon, changes in neurotransmitters and modifications in voltage-opened ion channels and second messenger systems. Moreover, epilepsy and bipolar disorders are both episodic conditions with a time course of illness that can become chronic.