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ERIC Number: EJ965026
Record Type: Journal
Publication Date: 2012-Feb
Pages: 5
Abstractor: As Provided
Reference Count: 26
ISBN: N/A
ISSN: ISSN-0096-1523
Immediate Small Number Perception : Evidence from a New Numerical Carry-Over Procedure
Demeyere, Nele; Humphreys, Glyn W.
Journal of Experimental Psychology: Human Perception and Performance, v38 n1 p18-22 Feb 2012
Evidence is presented for the immediate apprehension of exact small quantities. Participants performed a quantification task (are the number of items greater or smaller than?), and carry-over effects were examined between numbers requiring the same response. Carry-over effects between small numbers were strongly affected by repeats of pattern and number identity relative to when displays were from the same response category but contained different numbers. Carry-over effects with large items were less sensitive to both pattern and number identity, even when the numbers in the small and large categories were matched for discriminability. The data suggest that small numbers are immediately apprehended through a direct subitization process distinct from pattern recognition and the apprehension of approximate number. (Contains 2 figures.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Alabama