All About Prosopagnosia, "Prosopagnosia" : Prosopagnosia (sometimes known as face blindness) is a rare disorder of face perception where the ability to recognize faces is impaired, although the ability to recognize objects may be relatively intact. It usually occurs after brain injury or neurological disease that affects specific brain regions, although more recently, cases of congenital or developmental prosopagnosia have also been reported.

Few effective therapies have so far been developed for affected individuals, although individuals often learn to use 'piecemeal' or 'feature for feature recognition strategies. This may be secondary cues such as clothing, hair color or voice. Because the face seems to function as an important element in identifying the memory, it may be difficult for people with this condition to keep track of information about individuals.

Some people also use the prosophenosia term, which refers to the inability to recognize faces considerable damage to both occipital and temporal lobes.

disabilities selectively recognize faces were reported throughout the 19th century, and included case studies by Hughlings Jackson and Charcot. However, it has not been appointed until the term prosopagnosia was used in 1947 by Joachim Bodamer, a German neurologist.

He described three cases, including a 24 year old male who suffered a gunshot wound to the head and lost his ability to recognize friends, family, and even his own face. However, he was able to recognize and identify them through other sensory modalities such as auditory, tactile, visual and even other types of stimuli (such as walking and other physical ways). Bodamer gave his paper the title Die Prosopis-Agnosia, prosopon from classical Greek means "face" and agnosia, which means "unknowing.

The study of prosopagnosia has been crucial in the development of theories of face perception. Because prosopagnosia is not a unitary disorder (eg, different people may have different types and levels of impairment), he argued that face perception involves a number of steps, each of which may be damaged1 . This is reflected not only in the amount of impairment displayed but also in qualitative differences in renal a person may submit a prosopagnosia.

Such evidence was crucial in supporting the theory that there may be a specific face perception system in the brain. This cons-intuitive to many people that we do not experience faces as 'special' or perceived differently from the rest of the world.

There is a debate about the specificity of face perception and both prosopagnosia and some people have argued that this is just a subtype of visual agnosia.

Although prosopagnosia is often accompanied by problems of identification of visual objects, cases have been reported where the perception of faces appears to be selectively impaired.

He also argued that prosopagnosia may be suffering from a general deficiency in understanding how individual perceptual components make up the structure or gestalt of an object. Psychologist Martha Farah has been particularly associated with this view.

Subtypes of prosopagnosia

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