agnosicadj.n.

1907 Rev. Neurol. & Psychiatry 5 800 When a subject whose eyes are closed is unable to recognise, or recognises incompletely, an object in his hand, when in other words he is agnosic for that object, it is obvious that he cannot name it because he does not know what it is.

1953 M. Critchley Parietal Lobes vi. 191 The various types of visual agnosic defects.

1974 E. Lausch Manipulation v. 72 People whose association areas have been damaged can still see and can describe exactly the shape and colour of what they see, but they have difficulties in recognizing what they have seen. It is hard to transpose oneself into the world of such a ‘visually agnosic’ person, as the doctors call it.

2006 A. C. Papanicolaou et al. in A. C. Papanicolaou Amnesias v. 123 When a patient cannot recognize his wife when we show him her portrait, but does so as soon as she speaks, we call him agnosic.

1934 S. T. Orton in Localization Function Cerebral Cortex (Assoc. Res. Nerv. & Mental Dis.) xxi. 617 The visual agnosic is not blind.

1986 Brain 109 1225 Colour agnosics, autopagnosics, and agnosic alexics have, respectively, difficulty in recognizing colours, body parts and words.

2007 Neuropsychologia 45 2679/2 The recognition performance of agnosics benefits from colour information.