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Dysthymia (/ d ɪ s ˈ θ aɪ m i ə / dihs-THIY-mee-uh), also known as persistent depressive disorder (PDD), [3] is a mental and behavioral disorder, [5] specifically a disorder primarily of mood, consisting of similar cognitive and physical problems as major depressive disorder, but with longer-lasting symptoms.
PDD-NOS is not a current part of the Diagnostic and Statistical Manual of Mental Disorders typology (as of the DSM-5), which is the most common diagnostic typology used in the United States. In the still used (though deprecated) ICD-10, it is considered "atypical autism" and "pervasive developmental disorder, unspecified". [8]
Others diagnose the general category label of PDD because they are hesitant to diagnose very young children with a specific type of PDD, such as autism. [4] Both approaches contribute to confusion about the term, because the term PDD is intended by its coiners and major bodies to refer to a category of disorders and not be used as a diagnostic ...
241. “Children just cannot be sad too long, it is not in them.” – Nancy E. Turner. 242. “Children are natural Zen masters; their world is brand new in each and every moment.” – John ...
Developmental disability is a diverse group of chronic conditions, comprising mental or physical impairments that arise before adulthood. Developmental disabilities cause individuals living with them many difficulties in certain areas of life, especially in "language, mobility, learning, self-help, and independent living". [1]
Pathological demand avoidance (PDA) or extreme demand avoidance (EDA) is a proposed disorder, and proposed pervasive developmental disorder, defined by characteristics such as a demand avoidance—which is a greater-than-typical refusal to comply with requests or expectations—and extreme efforts to avoid social demands. [1]
Chinese stocks have surged over the past month, with PDD Holdings up 55% over the past month and GDS Holdings up 21%, even counting today's sell-off. LVMH's 5.6% gain, while paltry compared to ...
The scientific study of the causes of developmental disorders involves many theories. Some of the major differences between these theories involves whether environment disrupts normal development, if abnormalities are pre-determined, or if they are products of human evolutionary history which become disorders in modern environments (see evolutionary psychiatry). [5]