Subitizing

As a simultaneous detection denote scientists the ability to detect the number of a plurality of objects, without having to count them. In adults, the upper limit for this " At - a-glance record " is about four to five objects.

The fact that through targeted training this ability on eight or more objects could be increased, some say learning psychologists. The question is whether it actually is original simultaneous perception or not detected by structured multiple arrangements pattern must be spoken.

In this respect, allegedly deficient simultaneous perception can not be considered as a reason for dyscalculia ( math disability ). Targeted Recognition training often lead - as intended - to increased hit rates without causing any conceptual learning takes place in terms of quantities or numbers. In addition, a poor simultaneous perception also found in children with good mathematical understanding.