864 articles
Tactile hallucinations
Tactile hallucinations, also called haptic hallucinations, are perceptions of touch without a stimulus; formication (insect crawling, from Latin formica) is the best-known form, occurring in schizophrenia, Parkinson's disease, substance use, and medical conditions.
TELO2-related intellectual disability-neurodevelopmental disorder
TELO2-related intellectual disability-neurodevelopmental disorder, or You-Hoover-Fong syndrome, is an ultra-rare autosomal recessive TELO2 (16p13.3) disorder with severe developmental delay, microcephaly, movement disorder, and impaired balance.
Terminal lucidity
Terminal lucidity, also called paradoxical lucidity or "the surge," is the unexpected return of mental clarity and memory shortly before death in people with severe dementia, schizophrenia, or other neurologic and psychiatric disorders; cause unknown, episodes last seconds to hours.
Thalassophobia
Thalassophobia, also called fear of the ocean or deep water, is a specific phobia of vast, deep, dark bodies of water, distinct from aquaphobia (fear of water itself); treated mainly with exposure therapy and CBT.
The Journal of clinical psychiatry
The Journal of Clinical Psychiatry (JCP), ISSNs 0160-6689 print and 1555-2101 online, is a peer-reviewed psychiatry journal founded 1939, published by Physicians Postgraduate Press, Memphis, and official journal of the American Society of Clinical Psychopharmacology since 2005.
The Three Christs of Ypsilanti
The Three Christs of Ypsilanti is Milton Rokeach's 1964 psychiatric case study of his two-year experiment at Ypsilanti State Hospital, Michigan, where three paranoid schizophrenic patients, Clyde Benson, Joseph Cassel, and Leon Gabor, each claiming to be Jesus Christ, were confronted with one another; none was cured, and Rokeach later apologized for the ethics.
Therapeutic lifestyle change
Therapeutic lifestyle change (TLC) is a lifestyle-based mental health approach that treats psychological symptoms by prescribing changes in daily habits such as exercise, diet, sleep, and social connection.
Thinspiration
Thinspiration (thinspo) is pro-eating-disorder imagery and text idealizing thinness to inspire weight loss, originating in pro-ana spaces and spreading to Tumblr, Instagram, and Twitter; platforms banned its hashtags in 2012, and research links exposure to body dissatisfaction and disordered eating.
Thomas Szasz
Thomas Szasz (1920–2012), Hungarian-born American psychiatrist at SUNY Syracuse, author of The Myth of Mental Illness (1961), who argued mental illness is a metaphor for problems in living and opposed involuntary psychiatry, the insanity defense, and drug prohibition.
Thought blocking
Thought blocking: sudden involuntary interruption of the stream of thought and speech, classically described by Bleuler (1911); a Schneider first-rank-related phenomenon, ICD-11 code MB25.3, seen in psychosis and schizophrenia.
Thought broadcasting
Thought broadcasting: a delusion that one's private thoughts escape the mind and are transmitted to others. A Schneider first-rank symptom with ICD-10 diagnostic significance, historically attributed to Kraepelin (1913), but defined inconsistently and not specific to schizophrenia.
Thought disorder
Formal thought disorder (FTD), or thought disorder, is disturbed form and flow of thinking seen mainly as disorganized speech; hallmark of schizophrenia, also in mania and depression, measured by scales such as TLC, TDI, and TLI.
Thought insertion
Thought insertion (ICD-11 MB26.11) is a psychotic delusion in which a person experiences thoughts in their mind as inserted by an external agent; a Schneider first-rank symptom of schizophrenia, closely tied to auditory verbal hallucinations.
Thought withdrawal
Thought withdrawal (Entzug von Gedanken) is a Schneiderian first-rank symptom of schizophrenia: the experience that one's thoughts are removed from the mind by an external force, historically sufficient for diagnosis but de-emphasized in DSM-5 and ICD-11.
TORDIA trial
TORDIA (Treatment of SSRI-Resistant Depression in Adolescents), NIMH-funded six-site RCT, 334 teens aged 12-18, 2000-2006; CBT plus antidepressant switch beat medication switch alone (54.8% vs 40.5% response); venlafaxine no better than a second SSRI.
Trance disorder
Trance disorder (ICD-11 6B62; formerly ICD-10 F44.3 trance and possession disorders) is a dissociative disorder of involuntary, unwanted trance states with altered consciousness, narrowed awareness, and loss of voluntary control, absent substance, neurological, or sleep-wake causes.
Transactional analysis
Transactional analysis (TA), developed by Eric Berne in the 1950s, is a personality theory and psychotherapy using Parent, Adult, and Child ego states, transactions, games, strokes, and life scripts.
Transference-focused psychotherapy
Transference-focused psychotherapy (TFP) is a structured, manualized psychodynamic treatment for personality disorders, developed by Otto Kernberg and colleagues at Weill Cornell Medical College and counted among the evidence-based treatments for borderline personality disorder.
Transgenerational trauma
Transgenerational trauma (intergenerational, historical trauma) is transmission of trauma effects to descendants without direct exposure. First described 1966 in Holocaust survivors' children; key findings include FKBP5 methylation changes and parental PTSD as predictor; epigenetic inheritance in humans remains unproven.
Transient motor tics
Transient motor tics (ICD-11 8A05.03; DSM-5 provisional tic disorder, formerly transient tic disorder) are sudden, non-rhythmic movements such as blinking or sniffing present under 1 year, common in childhood and usually fading.
Trauma-sensitive yoga
Trauma-sensitive yoga is yoga adapted for trauma survivors, using gentle Hatha-based practice, invitational language, and participant choice; a 2014 trial found it reduced PTSD symptoms.
Treatment-resistant depression
Treatment-resistant depression (TRD) is major depression unresponsive to at least two adequate antidepressant trials; no consensus definition exists, prevalence reaches about 15%, and key treatments include ECT, rTMS, and ketamine or esketamine.
Triangulation (psychology)
Triangulation in psychology, a family-systems concept from Murray Bowen's theory, describes two feuding family members, usually parents, drawing a third person, most often a child, into their conflict.
Trichotillomania
Trichotillomania, or hair-pulling disorder, is a psychiatric disorder of recurrent hair pulling causing hair loss, classified in DSM-5 as an obsessive-compulsive and related disorder, treated first with habit reversal training.
Trifluoperazine
Trifluoperazine is a typical antipsychotic of the piperazine phenothiazine class, first launched as Stelazine by Smith Kline & French in 1958, used mainly for schizophrenia and psychoses and at low doses for anxiety and nausea.
Trypophobia
Trypophobia, or fear of holes, is an aversion to clusters of small holes or bumps, like lotus seedpods, described in 2013 and driven mainly by disgust.
Twelve-step program
Twelve-step program: recovery principles first codified by Alcoholics Anonymous (AA, Big Book, "How It Works"), founded by Bill Wilson and Robert Smith in 1935; adapted by other mutual-help groups and by Twelve-Step Facilitation (TSF) therapy from Project MATCH.
Tyler Hilinski
Tyler Hilinski, Washington State University quarterback, died by suicide January 16, 2018, in Pullman, Washington, at 21; a Mayo Clinic autopsy found Stage 1 CTE, and his family founded Hilinski's Hope for student-athlete mental health.
Urolagnia
Urolagnia (urophilia, undinism) is a paraphilia of sexual arousal linked to urine or urination; term coined from Greek roots, earliest OED evidence 1906 in Havelock Ellis, discussed by Krafft-Ebing, lifetime prevalence about 6% of men and 4% of women.
Varenicline
Varenicline (Chantix, Champix) is a partial agonist at α4β2 nicotinic receptors used for smoking cessation; FDA-approved May 2006, more effective than bupropion or single NRT, most common side effect nausea, recalled in 2021 over nitrosamine impurity, generics since 2021.