Developmental colour agnosia.

Covert colour processing in colour agnosia.

Patients with colour agnosia can perceive colours and are able to match coloured patches on hue, but are unable to identify or categorise colours. It is a rare condition and there is as yet no agreement on the clinical definition or a generally accepted explanation. In line with observations from object agnosia and prosopagnosia, we hypothesised that (some of) these patients might still be able...

Observations on Colour Agnosia.

Impaired integration of emotional faces and affective body context in a rare case of developmental visual agnosia.

In the current study we examined the recognition of facial expressions embedded in emotionally expressive bodies in case LG, an individual with a rare form of developmental visual agnosia (DVA) who suffers from severe prosopagnosia. Neuropsychological testing demonstrated that LG's agnosia is characterized by profoundly impaired visual integration. Unlike individuals with typical developmental ...

A Case Report & Literature Review

Developmental Gerstmann’s syndrome is a neurological disorder in children characterized by a tetrad of symptoms including dysgraphia, dyscalculia, left-right confusion, and finger agnosia. The incidence and exact cause is unknown. Controversy surrounds the existence, diagnosis and treatment of this condition. The case presented here represents a patient with developmental Gerstmann’s syndrome t...

Prosopagnosia: current perspectives

Prosopagnosia is a selective visual agnosia characterized by the inability to recognize the identity of faces. There are both acquired forms secondary to brain damage and developmental forms without obvious structural lesions. In this review, we first discuss the diagnosis of acquired and developmental prosopagnosia, and the challenges present in the latter case. Second, we discuss the evidence...