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Psychosis and Antipsychotic Drugs: Overview01:28

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The term "psychosis" refers to a spectrum of mental disorders characterized by abnormal thoughts, perceptions, and behaviors. It can manifest as mood disorders, dementia, delirium with psychotic features, substance-induced psychosis with psychotic features, brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophrenia. Among all these disorders, schizophrenia is the most common psychotic disorder, affecting 1% of the worldwide population. Psychotic...
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Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
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Psychosis: Goals of Pharmacotherapy01:26

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Antipsychotic drugs are a crucial treatment method for acute and chronic psychoses, bipolar illness, and behavioral disorders. The selection of these drugs depends on several factors, including the state of the disease, clinical judgment, possible drug interactions, and the patient's sensitivity to adverse effects. In immediate scenarios, such as delirium and dementia, short-term treatment with low doses of high-potency typical or atypical agents can effectively manage symptom exacerbation.
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Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
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Personality disorders represent enduring cognition, affect, and behavior patterns that significantly deviate from societal norms. These maladaptive traits often lead to difficulties in various domains, including interpersonal relationships, occupational settings, and overall psychological well-being. Paranoid personality disorder and schizoid personality disorder are two distinct conditions marked by odd or eccentric behavior.
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    Area of Science:

    • Neurology
    • Psychiatry
    • Neuroscience

    Background:

    • Psychosis presents across primary psychotic disorders, neurologic diseases, and medical conditions.
    • Effective management requires differentiating psychiatric from neurologic origins.
    • Neurologic practice frequently encounters patients with psychosis.

    Purpose of the Study:

    • To review the definition, evaluation, and management of psychosis.
    • To differentiate psychosis in primary psychiatric versus neurologic disorders.
    • To highlight emerging evidence on brain changes and antipsychotic mechanisms.

    Main Methods:

    • Literature review focusing on psychiatric and neurologic disorders with psychosis.
    • Analysis of current understanding of psychosis etiology and pathophysiology.
    • Examination of pharmacological treatments, including novel antipsychotics.

    Main Results:

    • Significant links exist between psychosis and structural/functional brain alterations.
    • New-generation antipsychotics offer benefits via serotonin receptor activity, reducing extrapyramidal side effects.
    • These agents are valuable for psychosis in neurodegenerative diseases.

    Conclusions:

    • Psychosis management strategies vary between primary psychotic and neurologic conditions.
    • Clinicians need to evaluate psychosis from both psychiatric and neurologic viewpoints.
    • Differentiating origins is crucial for optimal patient outcomes.