Purpose To clinically evaluate the random dot stereoacuity cards developed by Birch and Salomao on a population of infants within the first 12 months of life and to generate baseline normative data.

Reaction times are long and variable, almost certainly because they result from a process that accumulates noisy decision signals over time, rising to a threshold. But the origin of the variability is ...

Get enough dots together and your faulty eyeballs start seeing things. With random dot patterns, a simple move of the dots by a few degrees can create trippy concentric circles or wild swirls that ...

If you overlay a copy of random dots on itself, and then rotate it, magic — or, rather, a trick of geometry and pattern recognition — happens. As Numberphile’s Tadashi Tokieda (who previously brought ...