Symbolic distance between numerosity and identity modulates Stroop-like interference

Pavese, Antonella and Umiltà, Carlo (1999) Symbolic distance between numerosity and identity modulates Stroop-like interference. [Journal (Paginated)]

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Thirty undergraduates participated in an experiment investigating the effect of the arithmetic difference between stimulus identity and stimulus numerosity in a numerical version of the Stroop task. It was found that digits symbolically close to the enumeration response reliably produced larger interference than digits that were farther from the enumeration response. This semantic distance effect (SDE) was found with different numerosities (1¸9) and different enumeration processes (counting and subitizing), and it increased as a function of numerosity in the subitizing range. These findings suggest that digit identity autonomously activates a magnitude representation organized as a compressed number line.

Item Type:Journal (Paginated)
Keywords:number processing, symbolic distance effect, Stroop interference, magnitude representation, number line
Subjects:Psychology > Cognitive Psychology
Psychology > Perceptual Cognitive Psychology
Psychology > Psychophysics
ID Code:804
Deposited By: Pavese, Antonella
Deposited On:22 Apr 1999
Last Modified:11 Mar 2011 08:54


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