« Scoring friends | Main | How everyday things are made »

15 September 2003

Two-ness

In a maths test based at a science museum, female volunteers recognised one to four dots more quickly than males did. Both sexes did equally well at counting larger numbers of dots.

The findings add to evidence that the brain deals differently with small and large numbers. We seem to have a built-in idea of 'two-ness' or 'three-ness', but must count to distinguish 12 and 13, say...

Why the brain treats small and large numbers differently is not clear. Some social animals - rats, lions and chimpanzees - can count, a skill that perhaps enables them to decide how their group should react to single or multiple intruders.

From Nature

Posted at 09:42 PM in Cultured animals | Permalink

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d83455926e69e200d83502627353ef

Listed below are links to weblogs that reference Two-ness:

Comments