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Schizoaffective disorder is a mental disorder characterized by symptoms of both schizophrenia and a mood disorder - either bipolar disorder or depression. [4] [5] The main diagnostic criterion is the presence of psychotic symptoms for at least two weeks without prominent mood symptoms. [5]
In contrast to major depression, dementia is a progressive neurodegenerative syndrome involving a pervasive impairment of higher cortical functions resulting from widespread brain pathology. [ 7 ] A significant overlap in cognitive and neuropsychological dysfunction in dementia and pseudodementia patients increases the difficulty in diagnosis.
Emil Kraepelin (1856–1926). The Kraepelinian dichotomy is the division of the major endogenous psychoses into the disease concepts of dementia praecox, which was reformulated as schizophrenia by Eugen Bleuler by 1908, [1] [2] and manic-depressive psychosis, which has now been reconceived as bipolar disorder. [3]
The word schizophrenia ("splitting of the mind") is Modern Latin, derived from the Greek schizein (Ancient Greek: σχίζειν, lit. 'to split') and phrēn (Ancient Greek: φρήν, lit. 'mind'). [260] Its use was intended to describe the separation of function between personality, thinking, memory, and perception. [259]
In psychology, schizotypy is a theoretical concept that posits a continuum of personality characteristics and experiences, ranging from normal dissociative, imaginative states to extreme states of mind related to psychosis, especially schizophrenia. The continuum of personality proposed in schizotypy is in contrast to a categorical view of ...
A thought disorder (TD) is a disturbance in cognition which affects language, thought and communication. [1] [2] Psychiatric and psychological glossaries in 2015 and 2017 identified thought disorders as encompassing poverty of ideas, paralogia (a reasoning disorder characterized by expression of illogical or delusional thoughts), word salad, and delusions—all disturbances of thought content ...
Schizophreniform disorder is a type of mental illness that is characterized by psychosis and closely related to schizophrenia.Both schizophrenia and schizophreniform disorder, as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), have the same symptoms and essential features except for two differences: the level of functional impairment and the duration of symptoms.
A major mood episode is required for schizoaffective disorder (for a majority of the disorder's duration after criterion A [related to delusions, hallucinations, disorganized speech or behavior, and negative symptoms such as avolition] is met). [11] Criteria for delusional disorder changed, and it is no longer separate from shared delusional ...
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related to: which best describes delusions of schizophrenia related to depression and dementia