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ERIC Number: EJ940826
Record Type: Journal
Publication Date: 2011-Nov
Pages: 5
Abstractor: As Provided
ISSN: ISSN-0010-0277
Numerosities and Space; Indeed a Cognitive Illusion! A Reply to de Hevia and Spelke (2009)
Gebuis, Titia; Gevers, Wim
Cognition, v121 n2 p248-252 Nov 2011
de Hevia and Spelke (de Hevia and Spelke (2009). Spontaneous mapping of number and space in adults and young children, "Cognition, 110", 198-207) investigated the mapping of number onto space. To this end, they introduced a non-symbolic flanker task. Here subjects have to bisect a line that is flanked by a 2-dot and a 9-dot array. Similar to the symbolic line bisection task, a bias towards the larger numerosity was observed. We re-investigated these results both by creating new flanker stimuli that controlled for different (non-numerical) stimulus properties and by developing a new measurement tool. We demonstrate that the bisection bias was caused by the larger area subtended by the 9-dot array compared to the 2-dot array and not numerosity. Our study puts constraints on the results of the study by de Hevia and Spelke. The role of visual cues in numerosity processing in general is discussed. (Contains 1 figure.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Adult Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A