Experiments on domestic chicks shed light on the links between brain lateralization and the left-to-right mental number line.

A study in newborn chicks shows that brain lateralisation is essential for the development of a left-to-right mental number line.

In ovo light exposure that induces brain lateralization boosts chicks' number sense and spatial-numerical association.

Lateralization of the brain—the tendency for the left and right hemispheres to specialize in different functions—underlies ...

An illustrative video of the study by Rugani et al. showing how prenatal light exposure affects number sense and the mental number line in young domestic chicks.