Portal:Psychiatry

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Psychiatry is the medical specialty devoted to the diagnosis, prevention, and treatment of deleterious mental conditions. These include various matters related to mood, behaviour, cognition, perceptions, and emotions.

Initial psychiatric assessment of a person begins with creating a case history and conducting a mental status examination. Physical examinations, psychological tests, and laboratory tests may be conducted. On occasion, neuroimaging or other neurophysiological studies are performed. Mental disorders are diagnosed in accordance with diagnostic manuals such as the International Classification of Diseases (ICD), edited by the World Health Organization (WHO), and the Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association (APA). The fifth edition of the DSM (DSM-5), published in May 2013, reorganized the categories of disorders and added newer information and insights consistent with current research.

Treatment may include psychotropics (psychiatric medicines) and psychotherapy, and also other modalities such as assertive community treatment, community reinforcement, substance-abuse treatment, and supported employment. Treatment may be delivered on an inpatient or outpatient basis, depending on the severity of functional impairment or risk to the individual or community. Research within psychiatry is conducted on an interdisciplinary basis with other professionals, such as epidemiologists, nurses, social workers, occupational therapists, and clinical psychologists. (Full article...)

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Methylphenidate (trade names Concerta, Methylin, Ritalin, Equasym XL) is a substituted phenethylamine and psychostimulant drug used for the treatment of attention-deficit hyperactivity disorder (ADHD), postural orthostatic tachycardia syndrome and narcolepsy. Methylphenidate has been studied and researched for over 50 years and has a very good efficacy and safety record for the treatment of ADHD. The original patent was owned by CIBA, now Novartis Corporation. It was first licensed by the U.S. Food and Drug Administration (FDA) in 1955 for treating what was then known as hyperactivity. Prescribed to patients beginning in 1960, the drug became heavily prescribed in the 1990s, when the diagnosis of ADHD itself became more widely accepted.

ADHD and other similar conditions are believed to be linked to sub-performance of the dopamine and norepinephrine functions in the brain, primarily in the prefrontal cortex, responsible for self-regulatory function (e.g., inhibition, motivation, and memory) and executive function (e.g., reasoning, organizing, problem solving, and planning). Methylphenidate's mechanism of action involves the inhibition of catecholamine reuptake, primarily as a dopamine reuptake inhibitor. Methylphenidate acts by blocking the dopamine transporter and norepinephrine transporter, leading to increased concentrations of dopamine and norepinephrine within the synaptic cleft. This effect in turn leads to increased neurotransmission of dopamine and norepinephrine. (Full article...)

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Thomas Szasz
Thomas Stephen Szasz (/ˈsɑːs/ SAHSS; April 15, 1920 – September 8, 2012) was a psychiatrist and academic, a Fellow of the American Psychiatric Association, a member of the American Psychoanalytic Association, a professor of psychiatry at the State University of New York, and starting in 1990, he was professor emeritus of psychiatry at the State University of New York Upstate Medical University in Syracuse. He was well known as a social critic of the moral and scientific foundations of psychiatry, of what he saw as social control aims of medicine in modern society, and scientism. His books The Myth of Mental Illness (1961) and The Manufacture of Madness (1970) set out some of the arguments he is most associated with.

Szasz argued that mental illnesses are not real in the sense that cancers are real. Except for a few identifiable brain diseases, such as Alzheimer's disease, there are “neither biological or chemical tests nor biopsy or necropsy findings for verifying or falsifying DSM diagnoses", i.e. there are no objective methods for detecting the presence or absence of mental illness.(Full article...)

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