Major depressive disorder

mood disorder characterized by persistent low mood, motivation, and self-esteem, accompanied by loss of interest or pleasure and impairment of functioning

Antidepressants, also known in the past as psychic energizers, are a class of medications used to treat major depressive disorder, anxiety disorders, chronic pain, and addiction.

Anhedonia is a diverse array of deficits in hedonic function, including reduced motivation or ability to experience pleasure. While earlier definitions emphasized the inability to experience pleasure, anhedonia is currently used by researchers to refer to reduced motivation, reduced anticipatory pleasure (wanting), reduced consummatory pleasure (liking), and deficits in reinforcement learning. In the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), anhedonia is a component of depressive disorders, substance-related disorders, psychotic disorders, and personality di

mental depression that involves presentation of depressive symptoms only during a specific season of the year

Self-criticism involves how an individual evaluates oneself. Self-criticism in psychology is typically studied and discussed as a negative personality trait in which a person has a disrupted self-identity. The opposite of self-criticism would be someone who has a coherent, comprehensive, and generally positive self-identity. Self-criticism is often associated with major depressive disorder. Some theorists, such as Sidney Blatt, Samantha Reis and Brin Grenyer, define self-criticism as a mark of a certain type of depression (introjective depression), and in general people with depression tend to

depression characterized by improved mood in response to positive events

major depressive episode that is accompanied by psychotic symptoms

DSM-IV subtype of clinical depression

medical condition

medical condition

Demographics and prevelence of depression

state with features unique to both depression and mania

branch of biology

a period characterized by the symptoms of major depressive disorder

intense feeling caused by lack of touch