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MENTAL MODEL · M5771

Agnosia

Agnosia
TechnicalHigh supportNeuropsychology
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Version 1.0.0 · Updated 2026-07-28

CORE DEFINITION

Agnosia is a cognitive disorder caused by brain damage. Patients, despite having normal consciousness and no sensory deficits, lack the ability to recognize incoming sensory stimuli, including object agnosia, prosopagnosia, and auditory agnosia. It should be noted that this recognition disorder is not due to sensory loss (such as visual field defects, hemineglect), intellectual decline, abnormalities in consciousness or attention, or unfamiliarity with the object. Agnosia typically affects only one sensory modality, so an object that cannot be recognized through one sensory pathway (e.g., vision) may be recognized through another (e.g., touch).

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Agnosia is a cognitive disorder caused by brain damage. Patients, despite having normal consciousness and no sensory deficits, lack the ability to recognize incoming sensory stimuli, including object agnosia, prosopagnosia, and auditory agnosia. It should be noted that this recognition disorder is not due to sensory loss (such as visual field defects, hemineglect), intellectual decline, abnormalities in consciousness or attention, or unfamiliarity with the object.

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A neuropsychological disorder in which the patient's senses and intelligence are basically normal, but they cannot recognize familiar objects, faces, or sounds (e.g., prosopagnosia). The mechanism is damage to the pathway from perceptual information to meaning.

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Source support: Explicit

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    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E5%A4%B1%E8%AE%A4%E7%97%87ZH · Explicit
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