intact color perception (as measured by a matching task) but has deficits in color recognition, such as knowing which color they are looking at.

Signs and symptoms

Patients with cerebral achromatopsia deny having any experience of color when asked and fail standard clinical assessments like the Farnsworth-Munsell 100-hue test (a test of color ordering with no naming requirements). Patients may often not notice their loss of color vision and

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