Enumeration
of visual stimuli is supported by two, or more, distinct psychological
processes. 1) Serial counting, an effortful, slow, and controlled process that
is engaged when counting relatively large sets of objects (more than 4).
Reaction time (RT) slope for serial counting increases linearly, as the number
of items increases RT increases as well . 2) Subitizing is a fast and accurate
assessment of small quantities, the subitizing range is between 1 to 3 (or 4)
items.
 |
| Working Memory in Subitizing |
As
opposed to serial counting, RT barely increases (100 ms per item) as items
increase within the subitizing range, and therefore, the slope remains
relatively flat. Serial counting is more complex compared to subitizing and
involves many processes including: individualization and localization of
objects, switching spatial attention from one object to the other, summing the
number of objects and inhibition of already summed objects. Read more>>>>>>>>
No comments:
Post a Comment