When asked to estimate the number of items in a visual array, educated adults and children
are more precise and rapid if the items are clustered into small subgroups rather than …

Numerosity perception is a key ability to guide behavior. However, current models propose
that number units encode an abstract representation of numerosity regardless of the non …

The mechanisms underlying simple arithmetic difficulties in dyscalculia are unknown.
Evidence suggests deficiencies may arise from basic processes supporting magnitude …

Humans and animals share the cognitive ability to quickly extract approximate number
information from sets. Main psychophysical models suggest that visual approximate …

Numerosity, the set size of a group of items, helps guide behavior and decisions. Previous
studies have shown that neural populations respond selectively to numerosities. How …

Perceptual adaptation has been widely used to infer the existence of numerosity detectors,
enabling animals to quickly estimate the number of objects in a scene. Here, we …

The moment we see a group of objects, we can appreciate its numerosity. Our numerical
estimates can be imprecise for large sets (> 4 items), but they become much faster and more …

Numerical estimation of arrays of objects is faster and more accurate when items can be
clustered into groups, a phenomenon termed “groupitizing.” Grou** can facilitate …

Numerosity perception refers to the ability to make rapid but approximate estimates of the
quantity of elements in a set (spatial numerosity) or presented sequentially (temporal …

Abstract 'Groupitizing'refers to the observation that visually grouped arrays can be accurately
enumerated much faster than can unstructured arrays. Previous research suggests that …