864 articles
Gender dysphoria
Gender dysphoria is the DSM-5-TR diagnosis of clinically significant distress from incongruence between experienced gender and sex assigned at birth; ICD-11 instead uses gender incongruence, classified under sexual health, with distinct criteria and treatment frameworks.
Gender incongruence of childhood
Gender incongruence of childhood (ICD-11 HA61) is a WHO sexual-health diagnosis for pre-pubertal children with a marked, roughly two-year incongruence between experienced gender and assigned sex, replacing ICD-10's gender identity disorder of childhood.
Generalized anxiety disorder
Generalised anxiety disorder (GAD; ICD-11 6B00) is a mental disorder of excessive, hard-to-control worry lasting at least 6 months. First defined in DSM-III (1980); treated with CBT, applied relaxation, or SSRIs such as sertraline.
Generalized Anxiety Disorder 7 (GAD-7)
The GAD-7 is a seven-question public-domain questionnaire that screens for generalized anxiety disorder and grades anxiety symptom severity, described by Spitzer, Kroenke, Williams, and Löwe in 2006.
Genetics of schizophrenia
The genetics of schizophrenia covers inherited risk in schizophrenia, a psychotic disorder whose heritability is roughly 60–80%, shaped by many common variants and rarer, higher-impact ones.
Genital stage
Genital stage: fifth and final stage of Freud's psychosexual development, from puberty on, when libido shifts to genital primacy and mature sexual interests; largely unsupported empirically.
Geophagia
Geophagia (geophagy), deliberate eating of earth, soil, or clay, a form of pica; documented since Hippocrates, most common in pregnant women and children, best explained as protection from pathogens and toxins, with risks of anemia, obstruction, and heavy metal exposure.
Gestalt therapy
Gestalt therapy, founded by Fritz and Laura Perls with Paul Goodman (founding text 1951), is a here-and-now psychotherapy using empty-chair and awareness techniques, influenced by psychoanalysis, Gestalt psychology, and existentialism.
Glass delusion
Glass delusion, also called glass disease, a psychiatric condition of 15th–17th century Europe in which sufferers believed their bodies were made of glass and would shatter; famous case King Charles VI of France; now rare.
Global developmental delay-alopecia-macrocephaly-facial dysmorphism-structural brain anomalies syndrome
Global developmental delay-alopecia-macrocephaly-facial dysmorphism-structural brain anomalies syndrome, also called Bachmann-Bupp syndrome or ODC1-related neurodevelopmental disorder, is an ultra-rare autosomal dominant polyaminopathy caused by gain-of-function ODC1 variants, marked by postnatal alopecia, hypotonia, macrocephaly, and treatable with eflornithine (DFMO).
Glossary of psychiatry
Glossary of psychiatry: reference vocabulary of psychiatric diagnosis, centered on DSM (APA, 1952, now DSM-5-TR) and ICD (WHO, ICD-11), plus terms like nosology, mental status examination, residual categories, and RDoC.
Glossophobia
Glossophobia, or speech anxiety, is the fear of public speaking, from Greek glossa (tongue) and phobo (fear). Affects 21–33% of community samples, usually begins in adolescence, and is treated with exposure-based CBT, beta-blockers, or VR exposure therapy.
Goldwater rule
The Goldwater rule is Section 7.3 of the American Psychiatric Association's ethics code (1973), barring psychiatrists from offering professional opinions on public figures without a personal examination, after the 1964 Fact magazine poll of Barry Goldwater.
Grandiose delusion
Grandiose delusion, also called delusion of grandeur, is a psychotic false belief of inflated worth or exceptional identity, occurring in about two-thirds of bipolar and half of schizophrenia patients, coded ICD-11 MB26.05.
Grandiosity
Grandiosity: inflated sense of superiority, importance, or power; a defining trait of narcissistic personality disorder (DSM-5-TR) and, as grandiose delusions, a psychotic symptom common in bipolar mania and schizophrenia.
Gustatory hallucinations
Gustatory hallucinations, also called phantageusia, are tastes perceived without an oral stimulus; ICD-11 code MB27.21. They occur in epilepsy (parietal or rolandic operculum), psychosis (1-31% prevalence), and migraine.
Gynophobia
Gynophobia (gynephobia, gynaephobia) is a specific phobia of women, ICD-10-CM F40.291; ICD-11 lists it under social anxiety disorder. Treated by exposure therapy; distinct from misogyny.
Habit reversal training
Habit reversal training is a behavioral therapy that treats tics, nervous habits, and body-focused repetitive behaviors by training patients to detect the behavior early and perform an incompatible competing response.
Hallucination
Hallucination: a sensory perception without an external stimulus, in any modality. Also called voice hearing (auditory). Occurs in ~9.6% of the general population lifetime, 80% in schizophrenia; not pathognomonic of any disorder.
Hallucinogen dependence
Hallucinogen dependence is a disorder of dysregulated hallucinogen use, marked by impaired control, use taking precedence over other pursuits, and persistence despite harm; ICD-11 classifies it under code 6C49.2.
Hallucinogen intoxication
Hallucinogen intoxication (ICD-11 6C49.3) is a transient condition during or shortly after hallucinogen use, with perceptual, cognitive, and autonomic disturbances; managed mainly with reassurance and benzodiazepines, with hyperthermia and tachydysrhythmias as key dangers.
Hallucinogen persisting perception disorder
Hallucinogen persisting perception disorder (HPPD), formerly post-hallucinogen perception disorder or flashback syndrome, is a DSM-5 disorder (292.89, F16.983) of persistent re-experienced perceptual disturbances after hallucinogen use, with intact reality testing, roughly 4% estimated prevalence, and antipsychotics worsening symptoms.
Hallucinogen-induced anxiety disorder
Hallucinogen-induced anxiety disorder (ICD-11 6C49.61) is a substance-induced anxiety disorder with symptoms during or soon after hallucinogen intoxication, exceeding intoxication-level anxiety and not better explained by a primary disorder.
Hallucinogen-induced mood disorder
Hallucinogen-induced mood disorder (ICD-11 6C49.60) is mood disturbance, depressive, manic, or mixed, arising during or soon after hallucinogen intoxication, distinguished from primary mood disorders by resolution after cessation of use.
Hallucinogen-induced psychotic disorder
Hallucinogen-induced psychotic disorder (ICD-11 6C49.5): psychotic symptoms such as delusions and hallucinations arising during or soon after hallucinogen intoxication, with 26% pooled transition to schizophrenia.
Hamilton Rating Scale for Depression
Hamilton Rating Scale for Depression (HAM-D, HRSD, HDRS): clinician-administered 21-item depression severity scale by Max Hamilton, 1960, scored on first 17 items; gold standard in trials, remission cutoff ≤7.
Hangover
A hangover, also called veisalgia, is the set of mental and physical symptoms felt the day after heavy drinking, starting as blood alcohol returns to zero.
Hans Asperger
Hans Asperger (1906–1980) was an Austrian pediatrician who headed the therapeutic pedagogy ward of the Vienna University Children's Clinic and described "autistic psychopathy" in 1944, giving Asperger syndrome its name.
Haphephobia
Haphephobia, also called aphephobia or chiraptophobia, is a rare specific phobia of being touched, diagnosed under DSM-5 and ICD-11 (6B03), treated mainly with exposure therapy.
Helen Schucman
Helen Schucman (1909, New York City) was a Columbia University research psychologist who scribed A Course in Miracles (1965-1972) from an inner Voice she identified as Jesus, publishing anonymously; copyright assigned to the Foundation for Inner Peace.