Below you will find more information about Agnosia from Medigest. If you believe that you are suffering from any of the symptoms of Agnosia it is important that you obtain an accurate diagnosis from a medical professional to ensure that you obtain the correct medication or treatment for your condition. There are medical conditions that carry similar symptoms associated with Agnosia and therefore the information provided by Medigest is offered as a guideline only and should never be used in preference to seeking professional medical advice. The information relating to Agnosia comes from a third party source and Medigest will not be held liable for any inaccuracies relating to the information shown.


Agnosia or failure to know is a condition in which the person is unable to recognize objects, persons, sounds, shapes, or smells without any defective in a specific sense. There are different types of agnosia. The Autotopagnosia, the person is unable to identify the parts of the body. Visual agnosia the person cannot recognize a visual objects. Another type is Alexia, Inability to recognize text. We also have color agnosia, the patient has difficulty in distinguishing between color perception versus color recognition. Prosopagnosia also called as faceblindness or facial agnosia , the affected person is unable to recognize faniliar faces. Expressive agnosia is a type o g agnosia that the person cannot perceive different facial perception. Visual Verbal agnosia, the patient cannot understand spoken words. Auditory agnosia. The person can hear but unable to determine environmental and non-verbal auditory signs. Amusia, unable to identify music. Somatosensory agnosia or Astereognosia the patient is unable to identify object that is touch. Time Agnosia another type of agnosia that characterized with loss of comprehension of the time and duration of events. Apraxia or motor (body) agnosia it involves loss of ability to determine physical actions thus lead to repetitive of action.


Thorough physical assessment can identify agnosia. MRI and CT scan can also help diagnose the disorder and the severity of injury.


There is no specific treatment of agnosia, but rehabilitation like occupational therapy and speech therapy can help and improve the patient, but depending on the cause of the disorder.

Symptoms and Signs

Patient with Agnosia will show abnormal physical and mental function depending on the type of agnosia and the injury of the brain.


Agnosia is cause from strokes, dementia, or other neurological problem. Head injury, brain infection and genetic are also the predisposing factors that leads agnosia.

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