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Specialty. Psychiatry. Seasonal affective disorder (SAD) is a mood disorder subset in which people who typically have normal mental health throughout most of the year exhibit depressive symptoms at the same time each year. [1][2] It is commonly, but not always, associated with the reductions or increases in total daily sunlight hours that occur ...
screening instrument for seasonal affective disorder. The Seasonal Pattern Assessment Questionnaire, or SPAQ, is a simple, self-administered screening test for Seasonal Affective Disorder, first developed in 1984. Though some aspects of its accuracy have been questioned since then, it is widely used today, especially by SAD researchers.
The Diagnostic and Statistical Manual of Mental Disorders (DSM; latest edition: DSM-5-TR, published in March 2022 [1]) is a publication by the American Psychiatric Association (APA) for the classification of mental disorders using a common language and standard criteria. It is an internationally accepted manual on the diagnosis and treatment of ...
Dr. Norman Rosenthal, a light-therapy pioneer from South Africa, shares his insights on the disorder that he discovered in the 1980s. 3 questions about seasonal affective disorder — SAD — for ...
Intermittent explosive disorder (sometimes abbreviated as IED, also referred to as episodic dyscontrol syndrome) is a behavioral disorder characterized by explosive outbursts of anger and/or violence, often to the point of rage, that are disproportionate to the situation at hand (e.g., impulsive shouting, screaming or excessive reprimanding triggered by relatively inconsequential events).
The DSM also states that "there is no assumption that each category of mental disorder is a completely discrete entity with absolute boundaries dividing it from other mental disorders or no mental disorders." The DSM-IV-TR (Text Revision, 2000) consisted of five axes (domains) on which disorder could be assessed. The five axes were:
Hypersomnolence. Specialty. Psychiatry, neurology, sleep medicine. Hypersomnia is a neurological disorder of excessive time spent sleeping or excessive sleepiness. It can have many possible causes (such as seasonal affective disorder) and can cause distress and problems with functioning. [1]
The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), is the 2013 update to the Diagnostic and Statistical Manual of Mental Disorders, the taxonomic and diagnostic tool published by the American Psychiatric Association (APA). In 2022, a revised version (DSM-5-TR) was published. [1]