Sensitivity to Geometric Shape Regularity Emerges Independently of Vision.

ABSTRACT: In a visual intruder task, regular quadrilaterals such as squares and rectangles are easier to process than matched shapes devoid of parallelism, symmetry or right-angles. This geometric regularity effect was found in various human groups, including preschoolers and uneducated adults, but not in non-human primates. It was proposed to reflect a fundamental ability to combine discrete geometric features into structured representations of geometric shapes using an abstract amodal language-of-thought (LoT) that also supports the acquisition of symbolic drawing and formal mathematics. Here, we tested a prediction of this hypothesis: blind participants should have the same intuitions of geometric regularity as sighted ones. To evaluate this prediction, congenitally blind and sighted (but blindfo

SUBMITTER: Adriano A 

PROVIDER: S-EPMC12618013 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature