tactile hallucination

Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.


a sensory impression (sight, touch, sound, smell, or taste) that has no basis in external stimulation. Hallucinations can have psychologic causes, as in mental illness, or they can result from drugs, alcohol, organic illnesses, such as brain tumor or senility, or exhaustion. When hallucinations have a psychologic origin, they usually represent a disguised form of a repressed conflict. adj. adj hallu´cinative, hallu´cinatory.
auditory hallucination a hallucination of hearing; the most common type.
gustatory hallucination a hallucination of taste.
haptic hallucination tactile hallucination.
hypnagogic hallucination a vivid, dreamlike hallucination occurring at sleep onset.
hypnopompic hallucination a vivid, dreamlike hallucination occurring on awakening.
kinesthetic hallucination a hallucination involving the sense of bodily movement.
olfactory hallucination a hallucination of smell.
somatic hallucination a hallucination involving the perception of a physical experience occurring within the body.
tactile hallucination a hallucination of touch.
visual hallucination a hallucination of sight.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

tac·tile hal·lu·ci·na·tion

false perception of movement or sensation, as from an amputated limb, or crawling sensation on the skin.
Farlex Partner Medical Dictionary © Farlex 2012

tactile hallucination

A false sense of touching something or of objects moving on the skin. This abnormal perception is a hallmark of some withdrawal states, such as delirium tremens in alcohol withdrawal. See: formication
See also: hallucination
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Of these 55 patients, 90% experienced transient paranoid delusions, mostly directly related to drug use (such as delusions of being followed or surrounded by law-enforcement personnel or by people wanting to steal their drugs); 83% experienced auditory hallucinations, which is often consistent with paranoid delusions; 38% experienced visual hallucinations (such as people following them or looking in windows); 21% experienced tactile hallucinations (such as bugs or foreign objects on the skin); and 27% experienced transient behavioral stereotypies.
(28) Tactile hallucinations are characteristic of cocaine or amphetamine intoxication.
Tactile hallucinations are a rare symptom of schizophrenia.
Case studies report visual and tactile hallucinations with methylphenidate therapy that resolve after discontinuing the medication.
Table 2 Amoxicillin-triggered psychosis: 3 case reports Study Patient Description Beal Woman, Confusional manic symptoms after 10 days of et al age 30 treatment; symptoms resolved within 12 days of (7) admission; patient had a similar reaction to ampicillin 14 years earlier Stell Man, age Auditory, visual, and tactile hallucinations within et al 55 hours of first dose (8) Rao Woman, Auditory and visual hallucinations 1 week after (9) age 63 taking 250 mg tid; patient had a similar reaction to amoxicillin 5 years earlier; in both cases symptoms resolved within 3 days of discontinuing amoxicillin A 55-year-old man developed auditory, visual, and tactile hallucinations within hours of his first dose of amoxicillin for presumed pneumonia.
Physical and psychiatric symptoms, patient history, and collateral information together can confirm dextromethorphan abuse in patients who present with mainly visual and tactile hallucinations. The signs are easy to miss in patients with schizophrenia because schizophrenia is believed to be causing the psychosis.