Spared numerical abilities in a case of semantic dementia.
We report a case study of a patient (IH) with a progressive impairment of semantic memory affecting all categories of knowledge apart from numbers. Pictorial material was better understood than words, but was still severely impaired. The selective preservation of nearly all aspects of numerical knowledge suggested that this domain might have different neuropsychological status from other aspects of semantic memory.
Cappelletti
M
M
University Department of Psychiatry and Psychology, 3rd Floor, South Wing, St. Thomas' Hospital, Kings' College London, Lambeth Palace Road, SE1 7EH, London, UK. marinella.cappelletti@kcl.ac.uk
Butterworth
B
B
Kopelman
M
M
D000368:Aged; D003072:Cognition Disorders / Q000175:diagnosis*; D003704:Dementia / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008433:Mathematics; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales; D012660:Semantics