In this review, we are pitting two theories against each other: the more accepted theory, the
number sense theory, suggesting that a sense of number is innate and non-symbolic …

On a now orthodox view, humans and many other animals possess a “number sense,” or
approximate number system (ANS), that represents number. Recently, this orthodox view …

Numerical competence is one of the many aspects of animal cognition that have enjoyed a
resurgence of interest during the past decade. Evidence for numerical abilities in animals …

What representations underlie the ability to think and reason about number? Whereas
certain numerical concepts, such as the real numbers, are only ever represented by a subset …

Rips et al. claim that the principles underlying the structure of natural numbers cannot be
inferred from interactions with the physical world. However, in their target article they failed …

The combined efforts of many fields are advancing our understanding of how number is
represented. Researchers studying numerical reasoning in adult humans, developing …

Background A significant debate surrounds the nature of the cognitive mechanisms involved
in non-symbolic number estimation. Several studies have suggested the existence of the …

Research in numerical cognition has led to a widely accepted view of the existence of
innate, domain-specific, core numerical knowledge that involves the intraparietal sulcus in …

Some 10 years ago, it was proposed that different quantities, including time, space or
number, are processed by a common mechanism (Walsh, 2003; Pinel et al., 2004; Cohen …

Studies of human adults, infants, and non-human animals demonstrate that non-symbolic
numerical cognition is supported by at least two distinct cognitive systems: a “parallel …