The purpose of the present paper is to provide a critical review of the neuropsychological evidence elucidating the incidence and nature of numerical difficulties in dementia. Though long neglected, the occurrence of dyscalculia in the early stage of Alzheimer's disease (AD) has caught the attention of many, and both group studies and single-case investigations converge in identifying number processing and numerical difficulties among the early signs of dementia. Yet analysis of the available data suggests that the pattern of decline may vary greatly across individuals: numerical difficulties may be highly selective and limited to single processing mechanisms but also extended to all aspects of numerical abilities. Overall, data from AD, in agreement with acquired disorders in focal lesioned patients, confirm the dissociations between multiple functional components of the number processing and calculation system.

Girelli, L., Delazer, M. (2001). Numerical abilities in dementia. APHASIOLOGY, 15(7), 681-694 [10.1080/02687040143000122].

Numerical abilities in dementia

GIRELLI, LUISA;
2001

Abstract

The purpose of the present paper is to provide a critical review of the neuropsychological evidence elucidating the incidence and nature of numerical difficulties in dementia. Though long neglected, the occurrence of dyscalculia in the early stage of Alzheimer's disease (AD) has caught the attention of many, and both group studies and single-case investigations converge in identifying number processing and numerical difficulties among the early signs of dementia. Yet analysis of the available data suggests that the pattern of decline may vary greatly across individuals: numerical difficulties may be highly selective and limited to single processing mechanisms but also extended to all aspects of numerical abilities. Overall, data from AD, in agreement with acquired disorders in focal lesioned patients, confirm the dissociations between multiple functional components of the number processing and calculation system.
Articolo in rivista - Articolo scientifico
numerical abilities, dementia
English
lug-2001
15
7
681
694
none
Girelli, L., Delazer, M. (2001). Numerical abilities in dementia. APHASIOLOGY, 15(7), 681-694 [10.1080/02687040143000122].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/5460
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