Calculation abilities in dementia of Alzheimer's type and in vascular dementia

Influence of Probable Alzheimer's Disease on Multiplication Verification and Production Abstract

“…While there has been considerable research on the effect of AD on semantic memory (see Nebes, 1989, for a review), much less research has been conducted on AD and mental arithmetic processing (e.g., Kaufmann et al, 2002;Marterer et al, 1996;McGlinchy-Berroth et al, 1989;Pesenti, Thioux, Samson, Bruyer, & Seron, 2000;Rosselli et al, 1998). None of these earlier studies examined the detailed loci of mental arithmetic effects across groups as was done in the present study.…”

“…While numerical knowledge, such as number comparison and subitizing, seem to be preserved in AD patients (Grafman et al, 1989;Kaufmann et al, 2002), their overall performance in arithmetic problem solving tasks decreased with advances in the disease. Several studies showed that arithmetic score decrease correlated with the degree of dementia (Deloche et al, 1995;Mantovan et al, 1999;Marterer et al, 1996;Rosselli et al, 1998). Authors even suggested that arithmetic impairment may represent a reliable hallmark for the diagnosis of AD (Carlomagno et al, 1999;Deloche et al, 1995;Kaufmann et al, 2002;Mantovan et al, 1999;Marterer et al, 1996;Rosselli et al, 1998).…”

“…Several studies have shown that mathematical processing is impaired in demented people (Deloche et al, 1995;Grafman, Kampen, Rosemberg, Salazar, & Boller, 1989;Mantovan, Delazer, Ermani, & Denes, 1999;Marterer, Danielczyk, Simanyi, & Fischer, 1996;Parlato et al, 1992;Pesenti, Seron, & Van Der Linden, 1994). While numerical knowledge, such as number comparison and subitizing, seem to be preserved in AD patients (Grafman et al, 1989;Kaufmann et al, 2002), their overall performance in arithmetic problem solving tasks decreased with advances in the disease.…”

Numerical abilities in dementia

“…Calculation abilities in patients suffering from Alzheimer's type dementia (n = 23) and patients with vascular dementia (n = 19) were tested in a study by Marterer et al (1996). The performance in addition and multiplication problems was systematically lower in both AD groups than controls and was found to correlate with the severity of the disease.…”

Statistical Analysis of Dual-task Gait Characteristics for Cognitive Score Estimation

“…The primary symptoms of dementia include a deficit of memory, failure to understand concepts and impaired judgment behavior. Other signs of the affliction include the decrease of ability to perform locomotion tasks and carry out cognitive assignments such as solving calculus problems 10–13 .…”