Subitizing requires attention
Olivers, Christian N. L. and Watson, Derrick G. . (2008) Subitizing requires attention. Visual Cognition, Vol.16 (No.4). pp. 439-462. ISSN 1350-6285Full text not available from this repository.
Official URL: http://dx.doi.org/10.1080/13506280701825861
While counting objects is typically a slow, serial process, enumerating about four or fewer objects has been considered to be a relatively effortless, parallel, and even preattentive process often referred to as subitizing. However, by combining a subitizing task with an attentional blink task, we show that subitizing is systematically affected by a closely preceding letter identification task. Vice versa, letter identification is also affected by a closely preceding subitizing task. Importantly, performance not only depended on the time between the two tasks, but also on the number of to-be-enumerated dots, even though this number fell within the subitizing range. The results imply that the processes underlying subitizing require attentional resources, suggesting that they are either serial in nature, or parallel, with capacity limited by the overall resources available.
|Item Type:||Journal Article|
|Subjects:||B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
|Divisions:||Faculty of Science > Psychology|
|Library of Congress Subject Headings (LCSH):||Visual perception, Attention (Psychology), Number concept, Cognition, Cognitive science, Apperception, Short-term memory|
|Journal or Publication Title:||Visual Cognition|
|Number of Pages:||24|
|Page Range:||pp. 439-462|
|Funder:||Economic and Social Research Council (Great Britain) (ESRC), Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organisation for Scientific Research] (NWO)|
|Grant number:||R000239180 (ESRC)|
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