Stupor is the lack of critical cognitive function and level of consciousness wherein a sufferer is almost entirely unresponsive and only responds to base stimuli such as pain. The word derives from the Latin "stupure", meaning insensible. Being characterised by impairments of reactions to external stimuli, it usually appears in infectious diseases, complicated toxic states, severe hypothermia, mental illnesses (e.g. schizophrenia), vascular illnesses (e.g. hypertensive encephalopathy), neoplasms (e.g. brain tumors), vitamin D deficiency and so on.


If not stimulated externally, a patient with Stupor will be in a sleepy mode most of the time. Short periods of restricted responsivity can be achieved by intense stimulation (e.g. pain, bright light, loud noise).

Localisation of brain lesions

Lesions of the Ascending Reticular Activation System on height of the Pons and Metencephalon have been shown to cause Stupor. The incidence is higher after left-sided lesions.

ee also

* Torpor


* Ahuja 4th Edition Page 206 ISBN 81-7179-662-1
* Zakboek Neuropsychologische Symptomatologie Page 37 ISBN 90-334-3995-6

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  • stupor — stȕpor m DEFINICIJA pat. 1. stanje psihičke i motoričke ili samo psihičke zakočenosti, najčešće u duševnih bolesnika [pasti u stupor] 2. sopor SINTAGMA katatoni stupor pat. najteži oblik stupora, totalno i trajno zakočenje; sudski stupor naglo… …   Hrvatski jezični portal

  • stupor — stúpor s. n. Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  STÚPOR s. n. (med.) stupoare (2). (< lat. stupor) Trimis de raduborza, 15.09.2007. Sursa: MDN …   Dicționar Român

  • stupor — late 14c., from L. stupor insensibility, numbness, dullness, from stupere be stunned (see STUPID (Cf. stupid)) …   Etymology dictionary

  • Stupor — Stu por, n. [L., from stupere to be struck senseless.] 1. Great diminution or suspension of sensibility; suppression of sense or feeling; lethargy. [1913 Webster] 2. Intellectual insensibility; moral stupidity; heedlessness or inattention to one… …   The Collaborative International Dictionary of English

  • Stupor — (lat.), Gefühllosigkeit, Taubsinn der Mieder, Betäubung; S. artuum, das Einschlafen der Glieder; S. formīcans, so v.w. Ameisenkriechen; S. mentis, Stumpfsinn; S. universalis, Unempfindlichkeit; S. vigĭlans, so v.w. Starrsucht …   Pierer's Universal-Lexikon

  • Stūpor — (lat.), Erstarrung, dumpfe Starrheit; als Geisteskrankheit soviel wie Stumpfsinn (s. d.) …   Meyers Großes Konversations-Lexikon

  • Stupor — (lat.), Erstarrung, Blödsinn …   Kleines Konversations-Lexikon

  • stupor — index inertia, insentience, prostration, sloth Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • stupor — torpor, torpidity, lassitude, *lethargy, languor Analogous words: phlegm, impassivity, stolidity (see under IMPASSIVE): inertness or inertia, passivity, supineness, inactivity, idleness (see corresponding adjectives at INACTIVE): insensibility,… …   New Dictionary of Synonyms

  • stupor — meaning ‘a dazed state’, is spelt or in BrE and AmE …   Modern English usage

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