Further evidence on the effects of symbolic distance on Stroop-like interference |
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Authors: | Antonella Pavese Carlo Umiltà |
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Institution: | (1) Department of Psychology, College of Arts and Sciences, 1277 University of Oregon, Eugene, OR 97403-1227; Tel.: (541) 346-4940; E-mail: pavese@darkwing.uoregon.edu,;(2) University of Padua, Department of General Psychology, Padua, Italy, IT |
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Abstract: | Pavese and Umiltà found that, in an enumeration task, Stroop-like interference is larger when the digit identity is symbolically
close to the enumeration response than when it is symbolically far. In two experiments testing 49 undergraduates, we further
explored this phenomenon using Francolini and Egeth's paradigm. We found that symbolic distance affected interference even
when the stimulus was briefly presented and masked. In Exp. 2, which tested numerosities outside the subitizing range, individuals
used a different enumeration strategy but showed the same symbolic distance effect. These results support the hypothesis that
Stroop interference found in enumeration tasks depends on a rapid and automatic activation of digits' magnitude representation.
Received: 10 November 1997 / Accepted: 23 June 1998 |
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