creators_name: Pavese, Antonella
creators_name: Umiltà, Carlo
type: journalp
datestamp: 1999-04-22
lastmod: 2011-03-11 08:54:18
metadata_visibility: show
title: Symbolic distance between numerosity and identity modulates Stroop-like interference
ispublished: pub
subjects: cog-psy
subjects: percep-cog-psy
subjects: psy-phys
full_text_status: public
keywords: number processing, symbolic distance effect, Stroop interference, magnitude representation, number line
abstract: 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.
date: 1999
date_type: published
publication: Journal of Experimental Psychology: Human Perception and Performance
volume: 24
number: 5
pagerange: 1535-1545
refereed: TRUE
citation:   Pavese, Antonella and Umiltà, Carlo  (1999) Symbolic distance between numerosity and identity modulates Stroop-like interference.  [Journal (Paginated)]     
document_url: http://cogprints.org/804/3/stroopsde1.pdf