Phonological–lexical activation: a lexical component or anoutput buffer? Evidence from aphasic errors

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Phonological–lexical activation : a lexical component or anoutput buffer? Evidence from aphasic errors. / Romani, Cristina; Galluzzi, Claudia.

In: Cortex, Vol. 47, No. 2, 02.2011, p. 217-235.

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Harvard

Romani, C & Galluzzi, C 2011, 'Phonological–lexical activation: a lexical component or anoutput buffer? Evidence from aphasic errors' Cortex, vol. 47, no. 2, pp. 217-235. https://doi.org/10.1016/j.cortex.2009.11.004

APA

Romani, C., & Galluzzi, C. (2011). Phonological–lexical activation: a lexical component or anoutput buffer? Evidence from aphasic errors. Cortex, 47(2), 217-235. https://doi.org/10.1016/j.cortex.2009.11.004

Vancouver

Romani C, Galluzzi C. Phonological–lexical activation: a lexical component or anoutput buffer? Evidence from aphasic errors. Cortex. 2011 Feb;47(2):217-235. https://doi.org/10.1016/j.cortex.2009.11.004

Author

Romani, Cristina ; Galluzzi, Claudia. / Phonological–lexical activation : a lexical component or anoutput buffer? Evidence from aphasic errors. In: Cortex. 2011 ; Vol. 47, No. 2. pp. 217-235.

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@article{094aca9952444a5c950dd39b21e23aa5,
title = "Phonological–lexical activation: a lexical component or anoutput buffer? Evidence from aphasic errors",
abstract = "Single word production requires that phoneme activation is maintained while articulatory conversion is taking place. Word serial recall, connected speech and non-word production (repetition and spelling) are all assumed to involve a phonological output buffer. A crucial question is whether the same memory resources are also involved in single word production. We investigate this question by assessing length and positional effects in the single word repetition and reading of six aphasic patients. We expect a damaged buffer to result in error rates per phoneme which increase with word length and in position effects. Although our patients had trouble with phoneme activation (they made mainly errors of phoneme selection), they did not show the effects expected from a buffer impairment. These results show that phoneme activation cannot be automatically equated with a buffer. We hypothesize that the phonemes of existing words are kept active though permanent links to the word node. Thus, the sustained activation needed for their articulation will come from the lexicon and will have different characteristics from the activation needed for the short-term retention of an unbound set of units. We conclude that there is no need and no evidence for a phonological buffer in single word production.",
keywords = "phonological output buffer, phonological errors, buffer impairment, length effects, positional effects",
author = "Cristina Romani and Claudia Galluzzi",
note = "NOTICE: this is the author’s version of a work that was accepted for publication in Cortex. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Romani, Cristina and Galluzzi, Claudia (2011). Phonological–lexical activation: A lexical component or an output buffer? Evidence from aphasic errors. Cortex, 47 (2), pp. 217-235. DOI 10.1016/j.cortex.2009.11.004",
year = "2011",
month = "2",
doi = "10.1016/j.cortex.2009.11.004",
language = "English",
volume = "47",
pages = "217--235",
journal = "Cortex",
issn = "0010-9452",
publisher = "Elsevier",
number = "2",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Phonological–lexical activation

T2 - Cortex

AU - Romani, Cristina

AU - Galluzzi, Claudia

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Cortex. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Romani, Cristina and Galluzzi, Claudia (2011). Phonological–lexical activation: A lexical component or an output buffer? Evidence from aphasic errors. Cortex, 47 (2), pp. 217-235. DOI 10.1016/j.cortex.2009.11.004

PY - 2011/2

Y1 - 2011/2

N2 - Single word production requires that phoneme activation is maintained while articulatory conversion is taking place. Word serial recall, connected speech and non-word production (repetition and spelling) are all assumed to involve a phonological output buffer. A crucial question is whether the same memory resources are also involved in single word production. We investigate this question by assessing length and positional effects in the single word repetition and reading of six aphasic patients. We expect a damaged buffer to result in error rates per phoneme which increase with word length and in position effects. Although our patients had trouble with phoneme activation (they made mainly errors of phoneme selection), they did not show the effects expected from a buffer impairment. These results show that phoneme activation cannot be automatically equated with a buffer. We hypothesize that the phonemes of existing words are kept active though permanent links to the word node. Thus, the sustained activation needed for their articulation will come from the lexicon and will have different characteristics from the activation needed for the short-term retention of an unbound set of units. We conclude that there is no need and no evidence for a phonological buffer in single word production.

AB - Single word production requires that phoneme activation is maintained while articulatory conversion is taking place. Word serial recall, connected speech and non-word production (repetition and spelling) are all assumed to involve a phonological output buffer. A crucial question is whether the same memory resources are also involved in single word production. We investigate this question by assessing length and positional effects in the single word repetition and reading of six aphasic patients. We expect a damaged buffer to result in error rates per phoneme which increase with word length and in position effects. Although our patients had trouble with phoneme activation (they made mainly errors of phoneme selection), they did not show the effects expected from a buffer impairment. These results show that phoneme activation cannot be automatically equated with a buffer. We hypothesize that the phonemes of existing words are kept active though permanent links to the word node. Thus, the sustained activation needed for their articulation will come from the lexicon and will have different characteristics from the activation needed for the short-term retention of an unbound set of units. We conclude that there is no need and no evidence for a phonological buffer in single word production.

KW - phonological output buffer

KW - phonological errors

KW - buffer impairment

KW - length effects

KW - positional effects

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U2 - 10.1016/j.cortex.2009.11.004

DO - 10.1016/j.cortex.2009.11.004

M3 - Article

VL - 47

SP - 217

EP - 235

JO - Cortex

JF - Cortex

SN - 0010-9452

IS - 2

ER -

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