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The Dynamics of Lexical Competition During Spoken Word Recognition
 

Summary: The Dynamics of Lexical Competition
During Spoken Word Recognition
James S. Magnusona,b
, James A. Dixona
,
Michael K. Tanenhausc
, Richard N. Aslinc
aDepartment of Psychology, University of Connecticut
bHaskins Laboratories, New Haven, Connecticut
cDepartment of Brain and Cognitive Sciences, University of Rochester
Received 29 August 2005; received in revised form 25 May 2006; accepted 25 June 2006
Abstract
The sounds that make up spoken words are heard in a series and must be mapped rapidly onto words
in memory because their elements, unlike those of visual words, cannot simultaneously exist or persist
in time. Although theories agree that the dynamics of spoken word recognition are important, they differ
in how they treat the nature of the competitor set--precisely which words are activated as an auditory
word form unfolds in real time. This study used eye tracking to measure the impact over time of word
frequency and 2 partially overlapping competitor set definitions: onset density and neighborhood den-
sity. Time course measures revealed early and continuous effects of frequency (facilitatory) and on-
set-based similarity (inhibitory). Neighborhood density appears to have early facilitatory effects and late

  

Source: Aslin, Richard N. - Department of Brain and Cognitive Sciences, University of Rochester

 

Collections: Biology and Medicine