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Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment

Chris Code, Nicole Muller, Jeremy Tree Orcid Logo, Martin Ball

Aphasiology, Volume: 20, Issue: 9, Pages: 1035 - 1058

Swansea University Author: Jeremy Tree Orcid Logo

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DOI (Published version): 10.1080/02687030600739539

Abstract

Background & Aims: Recent studies suggest that agrammatism is not a major feature of progressive nonfluent aphasia, at least not in the earlier years post-onset. We investigated the emergence of syntactic impairments over a 3-year period in CS, a 63-year-old man 8 years post-onset of progressive...

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Published in: Aphasiology
Published: 2006
URI: https://cronfa.swan.ac.uk/Record/cronfa16870
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spelling 2014-01-10T16:38:07.1039253 v2 16870 2014-01-10 Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment 373fd575114a743d502a979c6161b1ad 0000-0001-6000-8125 Jeremy Tree Jeremy Tree true false 2014-01-10 HPS Background & Aims: Recent studies suggest that agrammatism is not a major feature of progressive nonfluent aphasia, at least not in the earlier years post-onset. We investigated the emergence of syntactic impairments over a 3-year period in CS, a 63-year-old man 8 years post-onset of progressive speech difficulties. CS has a range of progressive cognitive impairments, including progressive nonfluent aphasia, and limb and other apraxias (with a progressive non-aphasic and mostly non-dysarthric speech deterioration), but relatively intact intelligence, perception, orientation, long-term memory, semantics, and phonology. Writing impairments did not emerge until some 8 years after naming and speech impairments were first noticed, and after CS became mute. Methods & Procedures: We undertook detailed longitudinal examination of word and sentence writing and syntactic comprehension across a range of tasks and examined the impact of short-term memory. We were concerned to examine the data for evidence of agrammatic features, particularly in noun and verb use, and use of formulaic and simplified syntactic structures as the condition progressed. Outcomes & Results: Analysis showed a progressive emergence of deficits on tests of written syntax, syntactic comprehension, and auditory-verbal short-term memory. There was a progressive reduction in verb and noun use, but this was related to the kind of stimulus used. Features of agrammatism were evident in writing with a progressive dependence on formulaic and simplified syntax. Conclusions: It may be that agrammatism in PNFA is a feature that develops late in the progression, showing up only in writing because it is masked in speech by motor speech impairment. Increasing reliance on formulaic and simplified structures with progression suggests compensatory adaptation of CS's system. Impairments appeared to emerge in parallel with deterioration of syntactic comprehension and phonological short-term memory. Journal Article Aphasiology 20 9 1035 1058 31 12 2006 2006-12-31 10.1080/02687030600739539 COLLEGE NANME Psychology COLLEGE CODE HPS Swansea University 2014-01-10T16:38:07.1039253 2014-01-10T16:38:07.1039253 Faculty of Medicine, Health and Life Sciences School of Psychology Chris Code 1 Nicole Muller 2 Jeremy Tree 0000-0001-6000-8125 3 Martin Ball 4
title Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
spellingShingle Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
Jeremy Tree
title_short Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
title_full Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
title_fullStr Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
title_full_unstemmed Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
title_sort Syntactic impairments can emerge later: Progressive agrammatic agraphia and syntactic comprehension impairment
author_id_str_mv 373fd575114a743d502a979c6161b1ad
author_id_fullname_str_mv 373fd575114a743d502a979c6161b1ad_***_Jeremy Tree
author Jeremy Tree
author2 Chris Code
Nicole Muller
Jeremy Tree
Martin Ball
format Journal article
container_title Aphasiology
container_volume 20
container_issue 9
container_start_page 1035
publishDate 2006
institution Swansea University
doi_str_mv 10.1080/02687030600739539
college_str Faculty of Medicine, Health and Life Sciences
hierarchytype
hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
document_store_str 0
active_str 0
description Background & Aims: Recent studies suggest that agrammatism is not a major feature of progressive nonfluent aphasia, at least not in the earlier years post-onset. We investigated the emergence of syntactic impairments over a 3-year period in CS, a 63-year-old man 8 years post-onset of progressive speech difficulties. CS has a range of progressive cognitive impairments, including progressive nonfluent aphasia, and limb and other apraxias (with a progressive non-aphasic and mostly non-dysarthric speech deterioration), but relatively intact intelligence, perception, orientation, long-term memory, semantics, and phonology. Writing impairments did not emerge until some 8 years after naming and speech impairments were first noticed, and after CS became mute. Methods & Procedures: We undertook detailed longitudinal examination of word and sentence writing and syntactic comprehension across a range of tasks and examined the impact of short-term memory. We were concerned to examine the data for evidence of agrammatic features, particularly in noun and verb use, and use of formulaic and simplified syntactic structures as the condition progressed. Outcomes & Results: Analysis showed a progressive emergence of deficits on tests of written syntax, syntactic comprehension, and auditory-verbal short-term memory. There was a progressive reduction in verb and noun use, but this was related to the kind of stimulus used. Features of agrammatism were evident in writing with a progressive dependence on formulaic and simplified syntax. Conclusions: It may be that agrammatism in PNFA is a feature that develops late in the progression, showing up only in writing because it is masked in speech by motor speech impairment. Increasing reliance on formulaic and simplified structures with progression suggests compensatory adaptation of CS's system. Impairments appeared to emerge in parallel with deterioration of syntactic comprehension and phonological short-term memory.
published_date 2006-12-31T03:19:22Z
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score 11.01753

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