Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Loss of the ability to interpret sensory stimuli, such as sounds or images.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The inability to recognize objects by use of the senses.

from The Century Dictionary and Cyclopedia

  • n. Same as agnœea.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. inability to recognize objects by use of the senses

Etymologies

Greek agnōsiā, ignorance : a-, without; see a-1 + gnōsis, knowledge (from gignōskein, to know; see gnō- in Indo-European roots).
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ἀγνωσία (agnōsia, "ignorance"). (Wiktionary)

Examples

  • For him, the agnosia - the term agnosia is used for a situation in which one sees something clearly but one can't ascribe any meaning to it, you can't recognize it.

    Oliver Sacks: A Neurologist Examines 'The Mind's Eye'

  • The German neurologist Hermann Munk called this second condition "mind-blindness" (Seelenblindheit) and today it is known as "agnosia," a term we owe to Sigmund Freud.

    Masturbatory

  • When the cortical centers were damaged and could no longer interpret them, the result was agnosia.

    Masturbatory

  • They also flashed, Hillary's teary moment, in agnosia, and brought us the Hillary show on "sexism," involving a man, sporting a Hillary sticker, who, along with his friend, shouted, "iron our shirts."

    How Hillary Clinton Won Pennsylvania

  • As a consequence of this heterogeneity, SLI, researchers have introduced a number of subtypes of the disorder, including such things as ˜Verbal auditory agnosia,™

    Innateness and Language

  • They have a long-standing interest in specific disorders of auditory processing, such as auditory agnosia.

    Archive 2007-07-01

  • (Visual form agnosia is normally caused by carbon monoxide poisoning, for reasons that are little understood.)

    Higher-Order Theories of Consciousness

  • This is a neurological syndrome called visual form agnosia, which results from damage localized to both temporal lobes, leaving primary visual cortex and the parietal lobes intact.

    Higher-Order Theories of Consciousness

  • Other neuropsychological studies relevant to unified consciousness have examined blindsight (Weiskrantz 1986), blindsight and visual agnosia (van Gulick 1994), and hallucinations and thought insertion (Stephens and Graham 2000) and many similar phenomena.

    The Unity of Consciousness

  • The title refers to a man with visual agnosia, a condition where the ability to perceive or understand objects is lost, despite otherwise normal vision.

    Mind Hacks: Oliver Sacks discusses his work on Book Club

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Comments

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  • JM knows agnosia would be dreadful for a reason he can't recall at the moment.

    February 14, 2010

  • Kudos to laconic. May have to filch that usage sometime.

    June 12, 2009

  • After an hour at MOMA, cantankerous modern paintings lose their edge and the viewer fights the onset of absolute agnosia and boredom.

    June 11, 2009

  • Also, face blindness or prosopagnosia.

    November 10, 2008

  • All his books described some flavor of agnosia — blindness to objects, blindness to places, blindness to age or expression or gaze.
    --Richard Powers, 2007, The Echo Maker, p. 148

    November 7, 2008

  • Cf. jamais vu.

    September 13, 2008