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agnosia

agnosia

9.9
Unable to recognize familiar people or things even though your senses work
  • noun
  • /æɡˈnoʊziə/
  • Specialized
translation icon : agnosia
  • The doctor explained that agnosia can prevent patients from identifying everyday objects, even though their eyesight is normal.
  • associative agnosia
  • visual agnosia
  • patients with agnosia

Examples

  • It could be something neurological, like... something we call "agnosia"... which is an inability to recognize familiar objects.

  • The functioning of the "what" pathway has been revealed through the study of patients with agnosia.

    Academic text (1997)
  • Neurologists call this "visual agnosia."

    Fiction book (1999)
  • The authors explained that the "illusion des sosies," as they dubbed it, was caused by an "identification agnosia."

    Academic text (2009)
  • As Archibald (2003) describes, the person may also have difficulty in recognizing things, for example, a drink or food—visual agnosia.

    Academic text (2010)
  • In contrast, there is also clinical evidence for a dissociation of visual perception and imagery, especially dissociations between visual agnosia and visual imagery, suggesting a distinct implementation of these two capacities in the brain.

    Academic text (1999)
  • After his accident, he developed agnosia, which made it difficult for him to recognize his own family members.

  • People with agnosia may struggle to name familiar items, like a cup or a pen, despite being able to see them clearly.

Synonyms

nonrecognition
vsagnosia
  • Specialized
9.3

Not being able to tell who people are or what objects and sounds are because of brain damage

is a loss of recognizing familiar people or objects despite normal senses
noncognizance
vsagnosia
9.9

Not being aware of a fact or change

is a clinical sensory recognition loss occurring despite intact senses

Antonyms

43 2.0

Identifying someone or something from earlier experience

Compounds

auditory agnosia
  • Specialized
9.1

A condition where a person can hear sounds but cannot understand spoken words

tactile agnosia
  • Specialized
9.9

Not being able to tell what objects are by touch when your hand feels normal

visual agnosia
  • Specialized
9.3

A condition where a person can see but cannot identify objects or faces

Surface Forms

agnosia singular
agnosias plural

Morphology

agnosia = gnosis (opaque) = a + gnos + ia

The prefix 'a-' denotes absence, but the root 'gnos' is not a standalone English word, making the word's meaning opaque.

Etymology

Agnosia comes from Greek parts a- meaning 'not' and gnosis meaning 'knowledge', the same root you see in diagnosis. So, agnosia is like 'not knowing' and explains why someone can see or hear things but cannot recognize or name them.