Education enhances the acuity of the nonverbal approximate number system
Psychological Science (2013) - Comment
pubmed: 23625879  doi: 10.1177/0956797612464057  issn: 1467-9280  issn: 0956-7976 

Manuela Piazza, Pierre Pica, Véronique Izard, Elizabeth S. Spelke, Stanislas Dehaene