How your eyes detect quantities

Dyscalculia: News from the web:

New research from the University of Sydney sheds light on how we perceive objects and know how many there are:

“Result shows that numerical information is intrinsically related to perception,” said Dr Elisa Castaldi from Florence University. “This could have important, practical implications. For example, this ability is compromised in dyscalculia which is a dysfunction in mathematical learning, so our experiment may be useful in early identification of this condition in very young children. It is very simple: subjects simply look at a screen without making any active response, and their pupillary response is measured remotely.”

Read all about it: HERE