Error biases in spoken word planning and monitoring by aphasic and nonaphasic speakers: comment on Rapp and Goldrick (2000) |
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Authors: | Roelofs Ardi |
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Affiliation: | Max Planck Institute for Psycholinguistics, Nijmegen, Netherlands. ardi@mpi.nl |
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Abstract: | B. Rapp and M. Goldrick (2000) claimed that the lexical and mixed error biases in picture naming by aphasic and nonaphasic speakers argue against models that assume a feedforward-only relationship between lexical items and their sounds in spoken word production. The author contests this claim by showing that a feedforward-only model like WEAVER++ (W. J. M. Levelt, A. Roelofs, & A. S. Meyer, 1999b) exhibits the error biases in word planning and self-monitoring. Furthermore, it is argued that extant feedback accounts of the error biases and relevant chronometric effects are incompatible. WEAVER++ simulations with self-monitoring revealed that this model accounts for the chronometric data, the error biases, and the influence of the impairment locus in aphasic speakers. |
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