Numerosity (the number of objects in a set), like color or movement, is a basic property of the
environment. Animal and human brains have been endowed by evolution by mechanisms …

Abstract Mathematics skills relate to lifelong career, health and financial outcomes.
Individuals' cognitive abilities predict mathematics performance and there is growing …

In various cultures and at all spatial scales, humans produce a rich complexity of geometric
shapes such as lines, circles or spirals. Here, we propose that humans possess a language …

If languages influence the way we think, do bilinguals think differently in their respective
languages? And if languages do not affect thought, why do bilinguals often perceive such …

What predicts human mathematical competence? While detailed models of number
representation in the brain have been developed, it remains to be seen exactly how basic …

The natural numbers may be our simplest, most useful, and best-studied abstract concepts,
but their origins are debated. I consider this debate in the context of the proposal, by Gallistel …

Improvements in enumeration abilities that emerge over late childhood are primarily thought
to reflect perceptual developments such as increases in subitizing limits for small sets and …

Understanding what numbers are means knowing several things. It means knowing how
counting relates to numbers (called the cardinal principle or cardinality); it means knowing …

How our intuitive understanding of numbers is deeply rooted in our biology, traceable
through both evolution and development. Humans' understanding of numbers is intuitive …

Kant argued that Euclidean geometry is synthesized on the basis of an a priori intuition of
space. This proposal inspired much behavioral research probing whether spatial navigation …