color agnosia

(redirected from colour agnosia)

col·or ag·no·si·a

inability to name or identify specific colors by sight; caused by lesions of the dominant occipital and temporal lobes.

col·or ag·no·si·a

(kŏl'ŏr ag-nō'zē-ă)
Inability to name or identify colors; caused by lesions of the dominant occipital and temporal lobes.
Synonym(s): colour agnosia.

color agnosia

Inability to recognize or name specific colors.
See also: agnosia
Mentioned in ?
References in periodicals archive ?
26) Cortical injury causes additional sensory deficits, including colour agnosia (the inability to remember colour names), coloured hallucinations (phosphenes), photopsia, migrainous 'fortification spectra' or episodes of chromatopsia in which the environment appears suffused in a single colour.
In addition, the study of errors in colour naming by pre-school children (Pitchford & Mullen, 2003), and by an adult (JT) with colour agnosia (Woodward, Dixon, Mullen, Christensen, & Bub, 1999), gives results that are compatible with the pattern of reversals in Spanish colour terms across countries: Reversals in order occur between categories that are not only adjacent to each other in the naming sequence, but also perceptually adjacent in colour space.
This deficit in young children is intriguingly similar to colour agnosia neural deficits in adults.