Anton–Babinski syndrome

The Anton 's syndrome is a rare neurological syndrome. It describes the visual anosognosia (lack of insight into illness ) of their own ( cortical ) blindness by damaging the optic tract of both hemispheres of the brain. The Anton 's syndrome goes back to the Austrian neurologist Gabriel Anton ( 1858-1933 ).

The Anton 's syndrome is not to be confused with the Anton- Babinski syndrome, which refers to a unilateral Asomatognosie.

Symptoms

Sufferers do not notice their blindness and behave as if nothing had happened. The question as to whether the vision had become worse, they often deny vehemently. If you hold them things before, they describe these supposed objects as lively as wrong ( confabulation ).

Anatomical

The typical for Anton 's syndrome brain injury is a stroke of the visual cortex of both hemispheres. When supplied with blood of the visual cortex of the brain stem artery, is the origin of the two rear cerebral arteries. Rarely, an Anton 's syndrome, however, even after damage to the visual pathway anterior arise about the eyes.

A anosognosia may also occur for unusual parts of the visual field, where the person concerned does not catch it. It is not uncommon, for example, a blindness in the entire left half of the visual field only notice when the person frequently runs against the left door frame.

Historical

The first case described by Anton Gabriel is the one Mrs. Ursula M., who did not recognize their complete cortical blindness. A discrete word-finding disturbance, however, bothered her very much, which is why she complained much about it.

There was a case in 1885 known of Monakow, who had suffered a cortical blindness. This had not recognized his complete vision loss and behaved as if he could see. His general frailty, however, he realized, and also made allusions to it. The examination of his brain after his death showed that he had suffered damage to his visual cortices of both hemispheres.