Verb production during action naming in semantic dementia

Méligne, Déborah; Fossard, Marion; Belliard, Serge; Moreaud, Olivier; Duvignau, Karine; Demonet, Jean-François

doi:10.1016/j.jcomdis.2010.12.001

Cited by 20 publications

(15 citation statements)

References 47 publications

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“…With regards to semantically complex (instrumental) verbs, recent evidence from patients with semantic dementia has revealed a hierarchical bottom-up deficit of action semantic knowledge in which the more specific verbs (e.g., to peel) were the first to be lost (see Meligne et al, 2011, for a detailed explanation), mirroring the pattern shown in the present study by children with and without SLI. Once again, however, more research is warranted, to determine the exact nature of the similarities or deficit.…”

Section: Discussionsupporting

confidence: 80%

Does verb type affect action naming in specific language impairment (SLI)? Evidence from instrumentality and name relation

Kambanaros

2013

Journal of Neurolinguistics

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Section: Discussionsupporting

confidence: 80%

Does verb type affect action naming in specific language impairment (SLI)? Evidence from instrumentality and name relation

Kambanaros

2013

Journal of Neurolinguistics

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“…This is in line with recent findings that SD patients use more generic, high frequency verbs to describe videos of actions when compared against controls (Meligne et al, 2011). Meteyard & Patterson (2009) analysed open ended responses to questions about autobiographical events for eight SD patients.…”

Section: Introductionsupporting

confidence: 83%

“…This phenomenon may also be especially characteristic of speech samples collected from this kind of semi-structured interview, where the tester's questions about life events provoke responses like "I went to school in Birmingham", "We had our first child in 1970" etc. By comparison, description of a constrained scene like a video or complex picture invites the use of specific, heavier verbs (such as 'falling' or 'overflowing' in the Cookie Theft picture) and, in these cases it has been found that SD patients do rely on more high frequency, generic verbs than healthy speakers (Meligne et al, 2011). This is not meant to imply that picture description is a better method of eliciting connected speech than interview; if anything, some recent comparisons of the two methods have concluded that interview is more sensitive for detecting abnormalities in the syntax/structure of speech (Sajjadi et al, 2012;Sajjadi, Patterson, Tomek, & Nestor, 2013).…”

Section: Discussionmentioning

confidence: 99%

Ever decreasing circles: Speech production in semantic dementia

Meteyard

Quain

Patterson

2014

Cortex

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We explored the impact of a degraded semantic system on lexical, morphological and syntactic complexity in language production. We analysed transcripts from connected speech samples from eight patients with semantic dementia (SD) and eight age-matched healthy speakers. The frequency distributions of nouns and verbs were compared for hand-scored data and data extracted using text-analysis software. Lexical measures showed the predicted pattern for nouns and verbs in hand-scored data, and for nouns in software-extracted data, with fewer low frequency items in the speech of the patients relative to controls. The distribution of complex morpho-syntactic forms for the SD group showed a reduced range, with fewer constructions that required multiple auxiliaries and inflections. Finally, the distribution of syntactic constructions also differed between groups, with a pattern that reflects the patients' characteristic anomia and constraints on morpho-syntactic complexity. The data are in line with previous findings of an absence of gross syntactic errors or violations in SD speech. Alterations in the distributions of morphology and syntax, however, support constraint satisfaction models of speech production in which there is no hard boundary between lexical retrieval and grammatical encoding.

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“…While there is limited evidence available which suggests that there is a relationship between semantic knowledge and the proportion of verbs used by participants with aphasia that are semantically light, there is evidence for this relationship in other populations where semantic knowledge is impaired. For example, Méligne et al (2011) found that people with semantic dementia who have impaired semantic knowledge also produce a higher proportion of less specific or semantically light verbs. Therefore, the findings of the current study suggest that just as impaired semantic knowledge can impact on the semantic richness of verbs (Méligne et al, 2011), it also impacts on the semantic richness of iconic gestures that are produced during fluent speech.…”

Section: Discussionmentioning

confidence: 99%

“…For example, Méligne et al (2011) found that people with semantic dementia who have impaired semantic knowledge also produce a higher proportion of less specific or semantically light verbs. Therefore, the findings of the current study suggest that just as impaired semantic knowledge can impact on the semantic richness of verbs (Méligne et al, 2011), it also impacts on the semantic richness of iconic gestures that are produced during fluent speech. Thus both the iconic gestures produced during fluent speech and language are modulated by the semantic abilities of the person with aphasia.…”

Section: Discussionmentioning

confidence: 99%

The impact of impaired semantic knowledge on spontaneous iconic gesture production

Cocks¹,

Dipper²,

Pritchard³

et al. 2013

Aphasiology

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BackgroundPrevious research has found that people with aphasia produce more spontaneous iconic gesture than control participants, especially during word-finding difficulties. There is some evidence that impaired semantic knowledge impacts on the diversity of gestural handshapes, as well as the frequency of gesture production. However, no previous research has explored how impaired semantic knowledge impacts on the frequency and type of iconic gestures produced during fluent speech compared with those produced during word-finding difficulties.AimsTo explore the impact of impaired semantic knowledge on the frequency and type of iconic gestures produced during fluent speech and those produced during word-finding difficulties.Methods & ProceduresA group of 29 participants with aphasia and 29 control participants were video recorded describing a cartoon they had just watched. All iconic gestures were tagged and coded as either “manner,” “path only,” “shape outline” or “other”. These gestures were then separated into either those occurring during fluent speech or those occurring during a word-finding difficulty. The relationships between semantic knowledge and gesture frequency and form were then investigated in the two different conditions.Outcomes & ResultsAs expected, the participants with aphasia produced a higher frequency of iconic gestures than the control participants, but when the iconic gestures produced during word-finding difficulties were removed from the analysis, the frequency of iconic gesture was not significantly different between the groups. While there was not a significant relationship between the frequency of iconic gestures produced during fluent speech and semantic knowledge, there was a significant positive correlation between semantic knowledge and the proportion of word-finding difficulties that contained gesture. There was also a significant positive correlation between the speakers' semantic knowledge and the proportion of gestures that were produced during fluent speech that were classified as “manner”. Finally while not significant, there was a positive trend between semantic knowledge of objects and the production of “shape outline” gestures during word-finding difficulties for objects.ConclusionsThe results indicate that impaired semantic knowledge in aphasia impacts on both the iconic gestures produced during fluent speech and those produced during word-finding difficulties but in different ways. These results shed new light on the relationship between impaired language and iconic co-speech gesture production and also suggest that analysis of iconic gesture may be a useful addition to clinical assessment.

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Verb production during action naming in semantic dementia

Cited by 20 publications

References 47 publications

Does verb type affect action naming in specific language impairment (SLI)? Evidence from instrumentality and name relation

Does verb type affect action naming in specific language impairment (SLI)? Evidence from instrumentality and name relation

Ever decreasing circles: Speech production in semantic dementia

The impact of impaired semantic knowledge on spontaneous iconic gesture production

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