Immediate and short‐term effects of contextual priming on word retrieval in aphasia

Martin, Nadine; Fink, Ruth; Laine, Matti; Ayala, Jennifer

doi:10.1080/02687030444000390

Cited by 38 publications

(31 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of researchers adopt the approach of a by-items statistical analysis (e.g., Abel et al, 2005;Best et al, 1997;Martin, Fink, Laine, & Ayala, 2004), as is conventional and uncontroversial in the field of cognitive neuropsychological case studies not involving therapy. The tests used take advantage of the fact that the same items are usually repeated in each probe.…”

Section: Statistical Analysis By Itemsmentioning

confidence: 99%

Optimising the design of intervention studies: critiques and ways forward

Best²,

2014

View full text Add to dashboard Cite

Background: There is a growing body of research that evaluates interventions for neuropsychological impairments using single-case experimental designs and diversity of designs and analyses employed. Aims: This paper has two goals: first, to increase awareness and understanding of the limitations of therapy study designs and statistical techniques and, second, to suggest some designs and statistical techniques likely to produce intervention studies that can inform both theories of therapy and service provision. Main Contribution & Conclusions:We recommend a single-case experimental design that incorporates the following features. First, there should be random allocation of stimuli to treated and control conditions with matching for baseline performance, using relatively large stimulus sets to increase confidence in the data. Second, prior to intervention, baseline testing should occur on at least two occasions. Simulations show that termination of the baseline phase should not be contingent on "stability." For intervention, a predetermined number of sessions are required (rather than performance-determined duration). Finally, treatment effects must be significantly better than expected by chance to be confident that the results reflect change greater than random variation. Appropriate statistical analysis is important: by-item statistical analysis methods are strongly recommended and a methodology is presented using WEighted STatistics (WEST).The last decade has seen a rise in the influence of evidence-based practice (EBP) approaches to both service delivery decisions and the practice of therapy. This can be seen in the development of many sets of EBP guidelines and the teaching of evidence-based principles being adopted as a core element of many training courses for clinicians. We are wholly supportive of this. Central to EBP is the issue of what constitutes good evidence.Some EBP practitioners have asserted that randomised controlled trials (RCTs) are almost always the best evidence. A number of people have argued that, for behavioural therapies with heterogeneous populations, RCTs may not often yield useful data. While RCTs may indicate that therapy should be offered to individuals with language impairment, they do not, at least in their current form, provide answers to the "how" of therapy. They do not generally allow us to relate outcome to individual profiles and therefore cannot answer questions about which specific therapy approach is most likely to help a given individual.

show abstract

Section: Statistical Analysis By Itemsmentioning

confidence: 99%

Optimising the design of intervention studies: critiques and ways forward

Best²,

2014

View full text Add to dashboard Cite

show abstract

“…In contrast to IL, he benefited from training with a phonological context but not with semantic context. Martin, Fink, Laine, and Ayala (2004) investigated immediate and short-term effects of contextual repetition priming on naming abilities of 11 aphasic individuals. In all but one of the participants, they found that contextual priming had an immediate interference effect on naming (increased errors on naming probes during training in at least one context), but was facilitative for all participants in the short term (significantly better naming on a post-test 5 minutes after treatment).…”

mentioning

confidence: 99%

Treatment of word retrieval deficits with contextual priming

2004

Self Cite

View full text Add to dashboard Cite

Background: Repetition priming is often a component of treatments for word-finding disorders. It can facilitate or interfere with naming success depending on a number of factors.Here we investigate the effectiveness of massed priming coupled with semantic or phonological context as a treatment for naming impairments arising from semantic and phonological deficits. Aims: We aimed to determine whether (1) this procedure, used previously in a short-term facilitation study, would effectively improve word retrieval in a treatment study, and (2) the pattern of facilitation or interference observed in the facilitation study would carry over to the treatment programme. Methods & Procedures:We used a single subject multiple baseline design. There were two participants: LP with a phonological encoding deficit and AS with both semantic and phonological deficits. Treatment involved identifying and repeating the names of words that were related semantically or phonologically, or unrelated. Pre and post measures of naming were used to assess overall effectiveness of the treatment. Acquisition, maintenance, and generalisation were measured with baseline tests at the start of each session. Correct responses and errors on within-training naming probes were used to measure sensitivity to priming in a particular context. Outcomes & Results: LP benefited from this procedure regardless of the training context. AS showed interference in the semantic context during training and only modest short-term gains. These outcomes were predicted by their performance on an earlier facilitation study. Conclusions: Contextual repetition priming has different effects on naming and these differences appear to be related to the context of training (semantic or phonological) and the primary source of an individual's naming impairment (semantic or phonological). This procedure is most effective when semantic processing of words is relatively spared.

show abstract

“…Contextual priming treatment involves intensive repetition of stimulus items presented in sets that are unrelated, semantically related, phonologically related or both semantically and phonologically related (Cornelissen et al, 2003;Martin, Fink, Laine, & Ayala, 2004;Martin & Laine, 2000;Renvall et al, 2003). Of the participants who underwent CP treatment, individuals with predominantly phonological impairments (e.g., LP, YK, Martin & Laine, 2000;JL, Renvall et al, 2003) demonstrated short-term facilitative effects in naming accuracy.…”

Section: Hendricks Nicholas Zipsementioning

confidence: 97%

Effects of phonological neighbourhood on the treatment of naming in aphasia

Hendricks¹,

Nicholas²,

Zipse³

2013

Aphasiology

View full text Add to dashboard Cite

Background: Phonological treatments to improve naming ability in aphasia focus on restrengthening connections within the phonological system. Nonetheless, the efficacy of phonological treatments is still being explored with particular consideration of cognitive neuropsychological perspectives. Clinicians may also need to consider lexical factors that interact with the word retrieval process. Researchers have shown that phonological neighbourhood density influences normal language recognition and production, but limited evidence exists for how phonological neighbourhoods may affect the treatment of word retrieval deficits in individuals with aphasia. Aims: The present study explored if manipulating the emphasis on phonological neighbourhood during treatment has an effect on naming ability, particularly in an individual with predominantly phonologically based deficits. We hypothesised that training frontand end-matched words in a condition that emphasised phonological neighbourhood would result in greater naming improvements than training front-and end-matched words in a condition that does not emphasise neighbourhood. Methods & Procedures:In this case study, participant AH had a moderate phonologically based word naming deficit following a stroke. He produced phonemic paraphasias and neologisms in spontaneous speech and other spoken word production tasks. In treatment, AH was asked to name triplets of pictures of items that were phonologically related, sharing initial or final phonemes, or unrelated. Items were from either high-or low-density phonological neighbourhoods. High-density items were trained largely in the context of neighbours, therefore emphasising neighbourhood. Low-density items were not trained within a condition that emphasise neighbourhood. The treatment was administered for 9 weeks (27 sessions), with each condition, front-matched, end-matched and unrelated, trained for 8 consecutive sessions. AH's naming accuracy on training words was assessed using a basic withdrawal design with three probe naming tests during the treatment phase and at 1-month post-therapy. Naming accuracy was also recorded during treatment sessions. Outcomes & Results: Front-matched words, in a condition that emphasises phonological neighbourhoods, had the greatest treatment effects, with a medium effect size when comparing pre-versus post-measures. A small treatment effect was observed for frontmatched items where neighbourhood was not emphasised. Conclusions: Results suggest that front-matched triplets trained within a condition that emphasises phonological neighbourhoods may lead to the greatest treatment effect. Clinicians should be aware that stimulus parameters, such as phonological neighbourhood, may interact with the effectiveness of treatment protocols.

show abstract

Immediate and short‐term effects of contextual priming on word retrieval in aphasia

Cited by 38 publications

References 37 publications

Optimising the design of intervention studies: critiques and ways forward

Optimising the design of intervention studies: critiques and ways forward

Treatment of word retrieval deficits with contextual priming

Effects of phonological neighbourhood on the treatment of naming in aphasia

Contact Info

Product

Resources

About