The debate over maths in the Amazon: still counting points
Another paper, in Cognition, about the mathematical abilities of Amazonians. This time, the Gibson/Everett view scored one point. They claim that language for numbers is not what allows us to use concepts of exact quantities for big sets. It merely helps us to keep them in mind.[from the abstract] number words do not change our underlying representations of number but instead are a cognitive technology for keeping track of the cardinality of large sets across time, space, and changes in modality.
The opposite side is nonplussed about the study. Stanislas Deahaene shared his disbelief with The Telegraph.
Elizabeth Spelke talks of possible experimental biases in New Scientist. You can read the paper here (no screen).