Localizing the deficit in a case of jargonaphasia

Cognitive Neuropsychology
Andrew C OlsonLiz Halloran

Abstract

We report the case of a neologistic jargonaphasic and ask whether her target-related and abstruse neologisms are the result of a single deficit, which affects some items more severely than others, or two deficits: one to lexical access and the other to phonological encoding. We analyse both correct/incorrect performance and errors and apply both traditional and formal methods (maximum-likelihood estimation and model selection). All evidence points to a single deficit at the level of phonological encoding. Further characteristics are used to constrain the locus still further. V.S. does not show the type of length effect expected of a memory component, nor the pattern of errors associated with an articulatory deficit. We conclude that her neologistic errors can result from a single deficit at a level of phonological encoding that immediately follows lexical access where segments are represented in terms of their features. We do not conclude, however, that this is the only possible locus that will produce phonological errors in aphasia, or, indeed, jargonaphasia.

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Citations

Aug 26, 2010·Cognitive Neuropsychology·Andrew OlsonAlfonso Caramazza
Jul 4, 2012·Cognitive Neuropsychology·Andrew C Olson, Cristina Romani
Feb 19, 2010·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Cristina RomaniAndrew Olson
Sep 28, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Andrew OlsonCristina Romani
Sep 17, 2013·International Journal of Language & Communication Disorders·Arpita Bose
Dec 3, 2014·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Dror Dotan, Naama Friedmann
May 1, 2015·Psychological Science·Brenda RappMichele Miozzo
Nov 27, 2018·International Journal of Language & Communication Disorders·Arpita BoseDouglas Saddy
Oct 4, 2012·Journal of Speech, Language, and Hearing Research : JSLHR·Marina Laganaro
May 20, 2017·Frontiers in Human Neuroscience·Emma PilkingtonHolly Robson

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Methods Mentioned

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CELEX

Software Mentioned

PALPA
CELEX

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