Behavioral and psychological aspects of cluster headache: an overview.

This paper overviews available literature addressing behavioral and psychological aspects of cluster headache. Behavioral correlates of sleep and drug use are explored, as are the psychological correlates pertaining to psychopathology and cognitive functioning. We conclude with a review of the few investigations addressing adjunctive behavioral treatments for cluster headache, and provide suggestions for possible ways to enhance effects of behavioral interventions for this painful and difficult to treat headache disorder.