Titre
When solving 22-7 is much more difficult than 99-12.
Type
étude de cas
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Auteur(s)
Carota, A.
Auteure/Auteur
Marangolo, P.
Auteure/Auteur
Markowitsch, H.J.
Auteure/Auteur
Calabrese, P.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1465-3656
Statut éditorial
Publié
Date de publication
2013
Volume
19
Numéro
1
Première page
54
Dernière page/numéro d’article
66
Langue
anglais
Notes
Publication types: Journal ArticlePublication Status: ppublish
Résumé
We describe the case of a 69-year-old professor of mathematics (GV) who was examined 2 years after left-hemispheric capsular-thalamic haemorrhage. GV showed disproportionate impairment in subtractions requiring borrowing (22 - 7). For large subtraction problems without borrowing (99 - 12) performance was almost flawless. Subtractions with borrowing mostly relied on inadequate attempts to invert subtractions into the corresponding additions (22 - 7 = x as 7 + x = 22). The hypothesis is advanced that difficulty in the inhibitory components of attention tasks (Stroop test, go-no-go task) might be the responsible factor of his calculation impairment. A deficit in subtractions with borrowing might be related to left-hemispheric damage involving thalamo-cortical connections.
PID Serval
serval:BIB_28B2D74BB26E
PMID
Date de création
2013-02-21T16:42:29.001Z
Date de création dans IRIS
2025-05-20T19:44:39Z