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Anhedonia is a diverse array of deficits in hedonic function, including reduced motivation or ability to experience pleasure. [1] 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.
Sorrowing Old Man (At Eternity's Gate), an 1890 portrait by Vincent van Gogh Major depressive disorder (MDD), also known as clinical depression, is a mental disorder [9] characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities.
The two main symptoms of a major depressive episode are a depressed mood and a loss of interest or pleasure. [3] From the list below, one bold symptom and four other symptoms must be presented for at least 2 weeks for a diagnosis of a major depressive episode. Weight loss or gain; Change in body activity (psychomotor changes) Change in sleep ...
Melancholic depression is characterized by a loss of pleasure in most or all activities, a failure of reactivity to pleasurable stimuli, a quality of depressed mood more pronounced than that of grief or loss, a worsening of symptoms in the morning hours, early-morning waking, psychomotor retardation, excessive weight loss (not to be confused ...
The pleasure or joy that a person gets from certain experiences is reduced, and the afflicted person often experiences a loss of motivation or interest in those activities. [6] People with depression may experience sadness , feelings of dejection or hopelessness, difficulty in thinking and concentration, or a significant change in appetite or ...
A person is considered to have minor depressive disorder if they experience two to four depressive symptoms, with one of them being either depressed mood or loss of interest or pleasure, during a two-week period. The person must not have experienced the symptoms for two years and there must not have been one specific event that caused the ...
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Academic pressure, intrapersonal and interpersonal difficulties, death of loved ones, illnesses, and loss of relationships, have shown to be significant stressors in young people. [33] While it is a normal part of development in adolescence to experience distressing and disabling emotions, there is an increasing incidence of mental illness ...