hallucination in braille
   The expression hallucination in Braille refers to the configurations of raised dots invented by the Frenchman Louis Braille (1809-1852) as a medium of communication for individuals with poor vision or *blindness. The notion of hallucination in braille was introduced by the American neurologist and psychiatrist Walter Jackson Freeman (1895-1972) and his colleague Jonathan M. Williams. In 1953 they reported the case of a woman who was virtually blind and yet experienced * visual hallucinations depicting words in braille which flashed in front of her eyes or forehead simultaneously with her own conscious thoughts. For example, when the woman thought the words defense plant, she would hallucinate those same words visually in braille. Reportedly, the visual hallucinations (as well as the * auditory hallucinations from which she suffered) disappeared after a right-sided amygdaloidectomy. In their paper, Freeman and Williams cite this case to support their suggestion that the amygdala plays a part in the conversion of thought processes into motor movements of the larynx (a prerequisite of ordinary speech, but also of instances of *subvocalization) or into hallucinatory percepts occurring in one of the other sensory modalities. Although the hallucinations in braille described by Freeman and Williams can perhaps be best classified as a special case of * Gedankenlautwerden, it would seem equally defensible to regard them as * visual verbal hallucinations.
   Freeman, W., Williams, J.M. (1953). Hallucinations in braille: Effects of amygdaloidectomy. Archives of Neurology and Psychiatry, 70, 630-634.

Dictionary of Hallucinations. . 2010.

Look at other dictionaries:

  • braille hallucination —    see hallucination in braille …   Dictionary of Hallucinations

  • visual verbal hallucination —    Also known as logopsia, graphic hallucination, graphic speech hallucination, and visual speech hallucination. The French term hallucination verbale visuelle (i.e. visual verbal hallucination) was introduced in or shortly before 1888 by the… …   Dictionary of Hallucinations

  • Gedankenlautwerden —    Also known as Gedankenhören. Both German expressions translate into English as thought echo, thought echoing, thoughts out loud, thought audition, or audible thinking, and into French as écho de la pensée. All of these terms refer to a *… …   Dictionary of Hallucinations

  • Philip K. Dick — Born Philip Kindred Dick December 16, 1928(1928 12 16) Chicago, Illinois, U.S. Died March 2, 1982( …   Wikipedia

  • Projet:Médecine/Index — Articles 0 9 1,2 dibromo 3 chloropropane · 112 (numéro d urgence européen) · 1935 en santé et médecine · 1941 en santé et médecine · 1er régiment médical · 2 iodothyronine déiodinase · 2,4,6 trichlorophénol · 2005 en santé et médecine · 2006 en… …   Wikipédia en Français

  • literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …   Universalium

  • Liste des articles de médecine — Projet:Médecine/Index Articles 0 9 112 (numéro d urgence européen) · 2 iodothyronine déiodinase · 2,4,6 trichlorophénol · 3000 Scénarios contre un virus · A A. J. Cronin · Aaron Esterson · Aaron Temkin Beck · Abacavir · Abascantus · Abasie ·… …   Wikipédia en Français

  • William Burroughs — William S. Burroughs William S. Burroughs Activité(s) Écrivain Naissance 5 février 1914 Saint Louis Décès 2 ao …   Wikipédia en Français

  • William S. Burroughs — Pour les articles homonymes, voir Burroughs. William S. Burroughs …   Wikipédia en Français

  • William Seward Burroughs — William S. Burroughs William S. Burroughs Activité(s) Écrivain Naissance 5 février 1914 Saint Louis Décès 2 ao …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”