This term comes from the Greek "ignorance" and is related to the impediment that a person has to be able to remember the stimuli that have been learned, this is due to some brain damage and not to language or perception disorders. There are different types of agnosia where each one is specific to a sensory conduit and does not harm the other sensory forms. The agnosia can also cause difficulties in learning new sensory stimuli from the damaged pipe. The agnostic person can recognize visual, tactile and auditory characteristics, but later fails to recognize them as such.
- Visual agnosia: this type of agnosia is the most frequent and is characterized by the fact that patients do not have the ability to remember the objects that are visually shown to them, for example they can see a table and describe it as a table with four sticks, but not they manage to remember its name.
The person's brain is unable to recognize or translate what their eyes see:
- Tactile agnosia: the patient is not able to remember the name of an object through touch, even without presenting any sensory-perceptual disorder.
- Auditory agnosia: in this case the patient cannot understand or recognize the normal language of sounds.
- Motor agnosia: this type of agnosia makes it impossible for the patient to recognize motor patterns.
- Body agnosia: in this case the person is not able to recognize or describe their own body either in a total, lateral or partial way. The specialist in charge of evaluating this class of cognitive deficiencies is the neurologist.
