Anosognosia
Unawareness of one's own illness, symptoms or impairments / From Wikipedia, the free encyclopedia
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Anosognosia is a condition in which a person with a disability is cognitively unaware of having it due to an underlying physical condition. Anosognosia results from physiological damage to brain structures, typically to the parietal lobe or a diffuse lesion on the fronto-temporal-parietal area in the right hemisphere,[1][2][3] and is thus a neuropsychiatric disorder. A deficit of self-awareness, the term was first coined by the neurologist Joseph Babinski in 1914, in order to describe the unawareness of hemiplegia.[4][5]
Phenomenologically, anosognosia has similarities to denial, which is a psychological defense mechanism; attempts have been made at a unified explanation.[6]
Anosognosia is sometimes accompanied by asomatognosia, a form of neglect in which patients deny ownership of body parts such as their limbs. The name derives from Ancient Greek: ἀ-, a- ('without'), νόσος, nosos ('disease'), and γνῶσις, gnōsis ('knowledge').[5] It is considered a disorder that makes the treatment of the patient more difficult, since it may affect negatively the therapeutic relationship.[7]