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Schizotypal personality disorder (StPD or SPD), also known as schizotypal disorder, is a cluster A personality disorder. [4] [5] The Diagnostic and Statistical Manual of Mental Disorders (DSM) describes the disorder specifically as a personality disorder characterized by thought disorder, paranoia, a characteristic form of social anxiety, derealization, transient psychosis, and unconventional ...
The DSM-5 characterizes disorders as psychotic or on the schizophrenia spectrum if they involve hallucinations, delusions, disorganized thinking, grossly disorganized motor behavior, or negative symptoms. [17] The DSM-5 does not include psychosis as a definition in the glossary, although it defines "psychotic features", as well as "psychoticism ...
Oppositional defiant disorder (ODD) [1] is listed in the DSM-5 under Disruptive, impulse-control, and conduct disorders and defined as "a pattern of angry/irritable mood, argumentative/defiant behavior, or vindictiveness."
Brief psychotic disorder—according to the classifications of mental disorders DSM-IV-TR and DSM-5—is a psychotic condition involving the sudden onset of at least one psychotic symptom (such as disorganized thought/speech, delusions, hallucinations, or grossly disorganized or catatonic behavior) lasting 1 day to 1 month, often accompanied by emotional turmoil.
The DSM-5, published in 2013, gives a Scale to Assess the Severity of Symptom Dimensions outlining eight dimensions of symptoms. [59] DSM-5 states that to be diagnosed with schizophrenia, two diagnostic criteria have to be met over the period of one month, with a significant impact on social or occupational functioning for at least six months.
Psychotic depression can be difficult to distinguish from schizoaffective disorder, a diagnosis that requires the presence of psychotic symptoms for at least two weeks without any mood symptoms present. [2] Unipolar psychotic depression requires that psychotic symptoms occur during severe depressive episodes, although residual psychotic ...
Personality disorder not otherwise specified (PD-NOS) is a subclinical [a] diagnostic classification for some DSM-IV Axis II personality disorders not listed in DSM-IV. [1] The DSM-5 does not have a direct equivalent to PD-NOS. However, the DSM-5 other specified personality disorder and unspecified personality disorder are substantially ...
Other psychiatric disorders must then be ruled out. In delusional disorder, mood symptoms tend to be brief or absent, and unlike schizophrenia, delusions are non-bizarre and hallucinations are minimal or absent. [8] Interviews are important tools to obtain information about the patient's life situation and history to help make a diagnosis.