Nerve cells can detect small numbers of thing
<p>When two, three or four apples are placed in front of us, we are able to recognize the number of apples very quickly. However, we need significantly more time if there are five or more apples and we often also guess the wrong number. In fact, the brain does actually register smaller numbers of things differently than larger ones. This has been demonstrated in a recent study by the University of T&uuml;bingen, University of Bonn and the University Hospital Bonn. The results were publ...
Source: eurekalert.org