This article discusses cognitive neuropsychological research on acquired dyscalculia (ie,
impaired numerical processing resulting from brain damage), surveying issues of current …

Unresolved controversies regarding the functional impairments at the origin of dyscalculia,
including working memory, approximate number system and attention have pervaded the …

This article presents a framework for the cognitive analysis of number processing and
calculation. Within this framework the primary objective is the development of a model that is …

Neuropsychological studies have revealed different subtypes of dyscalculia, including
dissociations between exact calculation and approximation abilities, and an impact of …

Mental calculation is a complex cognitive operation that is composed of a set of distinct
functional processes. Using functional magnetic resonance imaging (fMRI), we mapped …

In this article, we present data from two brain-damaged patients with calculation impairments
in support of claims about the cognitive mechanisms underlying simple arithmetic …

One important cause of very low attainment in arithmetic (dyscalculia) seems to be a core
deficit in an inherited foundational capacity for numbers. According to one set of hypotheses …

Numerical abilities are thought to rest on the integration of two distinct systems, a verbal
system of number words and a non-symbolic representation of approximate quantities. This …

Non-deficit participants present a leftward bias (pseudoneglect) in a physical line bisection
task. This is also true for the mental number line bisection task. Physical and number line …

Developmental dyscalculia (DD) is a deficit in number processing and arithmetic that affects
3–6% of schoolchildren. The goal of the present study was to analyze cerebral bases of DD …