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 …

The present study assessed the relationships between approximate and exact number
abilities in children with little formal instruction to ask (1) whether individual differences in …

How do our mental representations of number change over development? The dominant
view holds that children (and adults) possess multiple representations of number, and that …

Various measures have been used to investigate number processing in children, including a
number comparison or a number line estimation task. The present study aimed to examine …

What basic capacities lay the foundation for advanced numerical cognition? Are there basic
nonsymbolic abilities that support the understanding of advanced numerical concepts, such …

Mental representations of numerical magnitude are commonly thought to undergo
discontinuous change over development in the form of a “representational shift.” This idea …

We tested the hypothesis that, when children learn to correctly count sets, they make a
semantic induction about the meanings of their number words. We tested the logical …

There are between 4,000 and 6,000 languages remaining in the world and the
characteristics of these languages vary widely. How could an infant born today master any …

In adult number processing two mechanisms are commonly used: approximate estimation of
quantity and exact calculation. While the former relies on the approximate number sense …

Deictic time words like “yesterday” and “tomorrow” pose a challenge to children not only
because they are abstract, and label periods in time, but also because their denotations vary …