The human infant brain is the only known machine able to master a natural language and
develop explicit, symbolic, and communicable systems of knowledge that deliver rich …

Recent studies in cognitive development suggest that preschoolers may not be able to
represent alternative possibilities, and therefore may lack modal concepts such as possible …

Subitizing is the fast and accurate enumeration of small sets. Whether attention is necessary
for subitizing remains controversial considering (1) subitizing is claimed to be “pre-attentive” …

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 …

In this study, we investigated in school-age children the relationship among mathematical
performance, the perception of numerosity (discrimination and mapping to number line), and …

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 …

Numerical comparison tasks are widely used to study the mental representation of numerical
magnitude. In study, event-related brain potentials (ERPs) were recorded while 26 high …

Publisher Summary This chapter discusses how one can determine the content of a mental
representation as it is found in the mind of an infant, an animal, or a member of a culturally …

Behavioral studies of numerical cognition have shown that perceptual threshold for
numerosity discrimination depends on the range of numerical values to be estimated …

In the first year of life, infants possess two cognitive systems encoding numerical information:
one for processing the numerosity of sets of 4 or more items, and the second for tracking up …