A semantic contribution to nonword recall? Evidence for intact phonological processes in semantic dementiaCitation formats

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A semantic contribution to nonword recall? Evidence for intact phonological processes in semantic dementia. / Jefferies, Elizabeth; Jones, Roy W.; Bateman, David; Lambon Ralph, Matthew A.

In: Cognitive Neuropsychology, Vol. 22, No. 2, 03.2005, p. 183-212.

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Jefferies, Elizabeth ; Jones, Roy W. ; Bateman, David ; Lambon Ralph, Matthew A. / A semantic contribution to nonword recall? Evidence for intact phonological processes in semantic dementia. In: Cognitive Neuropsychology. 2005 ; Vol. 22, No. 2. pp. 183-212.

Bibtex

@article{bdce8839a94146fb9bae2d2a4c42ca4b,
title = "A semantic contribution to nonword recall? Evidence for intact phonological processes in semantic dementia",
abstract = "Patients with semantic dementia make numerous phonological errors in their immediate serial recall of words that they understand poorly. Previous studies have argued that these errors result from a reduction in the normal contribution made by semantics to the coherence of items in the phonological system. It is possible, however, that the errors might reflect additional subtle phonological deficits. Six patients with semantic dementia were tested on a variety of phonological processing and short-term memory tasks, in order to explore these possibilities. For the most part, the patients showed normal performance in phonological awareness and discrimination tasks and normal effects of phonological similarity and word length in immediate serial recall. The more severely impaired patients, however, showed some weakness on tests of nonword repetition and recall. Every patient showed better recall of words that were still relatively well understood, compared with words that were more semantically degraded. This difference extended to nonwords that were phonologically similar to the known and degraded words, suggesting that the patients' semantic deficits could account for their impairments in nonword recall. The recall advantage for semantically known over degraded items also extended to a nonverbal delayed picture copying task, suggesting that the patients' immediate serial recall impairments were underpinned by a central semantic deficit, and not by a separable lexical deficit. {\circledC} 2005 Psychology Press Ltd.",
author = "Elizabeth Jefferies and Jones, {Roy W.} and David Bateman and {Lambon Ralph}, {Matthew A.}",
year = "2005",
month = "3",
doi = "10.1080/02643290442000068",
language = "English",
volume = "22",
pages = "183--212",
journal = "Cognitive Neuropsychology",
issn = "1464-0627",
publisher = "Psychology Press Ltd",
number = "2",

}

RIS

TY - JOUR

T1 - A semantic contribution to nonword recall? Evidence for intact phonological processes in semantic dementia

AU - Jefferies, Elizabeth

AU - Jones, Roy W.

AU - Bateman, David

AU - Lambon Ralph, Matthew A.

PY - 2005/3

Y1 - 2005/3

N2 - Patients with semantic dementia make numerous phonological errors in their immediate serial recall of words that they understand poorly. Previous studies have argued that these errors result from a reduction in the normal contribution made by semantics to the coherence of items in the phonological system. It is possible, however, that the errors might reflect additional subtle phonological deficits. Six patients with semantic dementia were tested on a variety of phonological processing and short-term memory tasks, in order to explore these possibilities. For the most part, the patients showed normal performance in phonological awareness and discrimination tasks and normal effects of phonological similarity and word length in immediate serial recall. The more severely impaired patients, however, showed some weakness on tests of nonword repetition and recall. Every patient showed better recall of words that were still relatively well understood, compared with words that were more semantically degraded. This difference extended to nonwords that were phonologically similar to the known and degraded words, suggesting that the patients' semantic deficits could account for their impairments in nonword recall. The recall advantage for semantically known over degraded items also extended to a nonverbal delayed picture copying task, suggesting that the patients' immediate serial recall impairments were underpinned by a central semantic deficit, and not by a separable lexical deficit. © 2005 Psychology Press Ltd.

AB - Patients with semantic dementia make numerous phonological errors in their immediate serial recall of words that they understand poorly. Previous studies have argued that these errors result from a reduction in the normal contribution made by semantics to the coherence of items in the phonological system. It is possible, however, that the errors might reflect additional subtle phonological deficits. Six patients with semantic dementia were tested on a variety of phonological processing and short-term memory tasks, in order to explore these possibilities. For the most part, the patients showed normal performance in phonological awareness and discrimination tasks and normal effects of phonological similarity and word length in immediate serial recall. The more severely impaired patients, however, showed some weakness on tests of nonword repetition and recall. Every patient showed better recall of words that were still relatively well understood, compared with words that were more semantically degraded. This difference extended to nonwords that were phonologically similar to the known and degraded words, suggesting that the patients' semantic deficits could account for their impairments in nonword recall. The recall advantage for semantically known over degraded items also extended to a nonverbal delayed picture copying task, suggesting that the patients' immediate serial recall impairments were underpinned by a central semantic deficit, and not by a separable lexical deficit. © 2005 Psychology Press Ltd.

U2 - 10.1080/02643290442000068

DO - 10.1080/02643290442000068

M3 - Article

VL - 22

SP - 183

EP - 212

JO - Cognitive Neuropsychology

JF - Cognitive Neuropsychology

SN - 1464-0627

IS - 2

ER -