scholarly journals Identification and Remediation of Phonological and Motor Errors in Acquired Sound Production Impairment

2017 ◽  
Vol 60 (6S) ◽  
pp. 1726-1738 ◽  
Author(s):  
Adam Buchwald ◽  
Bernadine Gagnon ◽  
Michele Miozzo
Keyword(s):  
Speech Production ◽  
Phonological Processing ◽  
Sound Production ◽  
Motor Planning ◽  
Consonant Cluster ◽  
Apraxia Of Speech ◽  
Training Task ◽  
Production Errors ◽  
Repetition Task ◽  
Error Types

Purpose This study aimed to test whether an approach to distinguishing errors arising in phonological processing from those arising in motor planning also predicts the extent to which repetition-based training can lead to improved production of difficult sound sequences. Method Four individuals with acquired speech production impairment who produced consonant cluster errors involving deletion were examined using a repetition task. We compared the acoustic details of productions with deletion errors in target consonant clusters to singleton consonants. Changes in accuracy over the course of the study were also compared. Results Two individuals produced deletion errors consistent with a phonological locus of the errors, and 2 individuals produced errors consistent with a motoric locus of the errors. The 2 individuals who made phonologically driven errors showed no change in performance on a repetition training task, whereas the 2 individuals with motoric errors improved in their production of both trained and untrained items. Conclusions The results extend previous findings about a metric for identifying the source of sound production errors in individuals with both apraxia of speech and aphasia. In particular, this work may provide a tool for identifying predominant error types in individuals with complex deficits.

scholarly journals Exploring the Overlap Between Dyslexia and Speech Sound Production Deficits

2018 ◽  
Vol 49 (4) ◽  
pp. 774-786 ◽  
Author(s):  
Kathryn L. Cabbage ◽  
Kelly Farquharson ◽  
Jenya Iuzzini-Seigel ◽  
Jennifer Zuk ◽  
Tiffany P. Hogan
Keyword(s):  
At Risk ◽  
Young Children ◽  
Speech Production ◽  
Sound Production ◽  
Speech Sound ◽  
Speech Sound Disorder ◽  
Speech Language Pathologists ◽  
Speech Language Pathologist ◽  
History Of ◽  
Production Errors

Purpose Children with dyslexia have speech production deficits in a variety of spoken language contexts. In this article, we discuss the nature of speech production errors in children with dyslexia, including those who have a history of speech sound disorder and those who do not, to familiarize speech-language pathologists with speech production–specific risk factors that may help predict or identify dyslexia in young children. Method In this tutorial, we discuss the role of a phonological deficit in children with dyslexia and how this may manifest as speech production errors, sometimes in conjunction with a speech sound disorder but sometimes not. We also briefly review other factors outside the realm of phonology that may alert the speech-language pathologist to possible dyslexia. Results Speech-language pathologists possess unique knowledge that directly contributes to the identification and remediation of children with dyslexia. We present several clinical recommendations related to speech production deficits in children with dyslexia. We also review what is known about how and when children with speech sound disorder are most at risk for dyslexia. Conclusion Speech-language pathologists have a unique opportunity to assist in the identification of young children who are at risk for dyslexia.

Effects of Verb Network Strengthening Treatment on Sound-Level and Speech Production Errors in Individuals With Aphasia and Acquired Apraxia of Speech

2021 ◽  
pp. 1-13
Author(s):  
Kate C. Nealon ◽  
Lisa A. Edmonds
Keyword(s):  
Speech Production ◽  
Sound Level ◽  
Lexical Retrieval ◽  
Apraxia Of Speech ◽  
Speech Impairment ◽  
Language Therapy ◽  
Correct Number ◽  
Dual Diagnoses ◽  
A Prospective Study ◽  
Production Errors

Purpose This retrospective pilot study investigated whether sound-level and speech production errors decreased in confrontation naming following Verb Network Strengthening Treatment (VNeST) for four participants with acquired apraxia of speech (A-AOS) and aphasia for whom lexical retrieval was previously reported. Specifically, we investigated a potential increase in correct number of syllables per word and posttreatment changes across three domains of speech: segmental production, fluency, and prosody. It was hypothesized that treatment shown to increase lexical retrieval in persons with aphasia and A-AOS could potentially facilitate a reduction in sound-level and speech production errors consistent with dual diagnoses of A-AOS and aphasia. Method Naming responses from four participants with aphasia and A-AOS who previously participated in VNeST studies were investigated for correct number of syllables per word and measures of segmental speech, fluency, and prosody. Results Significant gains in at least one measure of speech production were reported for three of the participants. One participant demonstrated decreased segmental speech errors, two showed significant reduction on syllable segmentation, and two demonstrated a significant reduction on false starts and pauses. Significant gains in production of correct number of syllables were limited to one participant, and one participant did not demonstrate increased accuracy on any measure of speech production. Conclusions While speech production errors consistent with motor speech impairment cannot always be definitively distinguished from the confound of aphasia, two participants produced significantly decreased segmentation of syllables, a characteristic unique to A-AOS. The sound-level and speech production changes recorded may be attributed to a combination of interacting motor and language processes and resource allocation. In addition, specific components of VNeST may have contributed to speech production changes. Future work will focus on a prospective study of effects of language therapy (e.g., VNeST) on measures of speech production with investigation beyond the single-word level.

Combined Aphasia and Apraxia of Speech Treatment (CAAST): Effects of a Novel Therapy

2014 ◽  
Vol 57 (6) ◽  
pp. 2191-2207 ◽  
Author(s):  
Julie L. Wambaugh ◽  
Sandra Wright ◽  
Christina Nessler ◽  
Shannon C. Mauszycki
Keyword(s):  
Speech Production ◽  
Speech Intelligibility ◽  
Sound Production ◽  
Apraxia Of Speech ◽  
Novel Therapy ◽  
Verbal Language ◽  
Treatment Techniques ◽  
Dependent Variables ◽  
Picture Stimuli ◽  
Speech Treatment

Purpose This investigation was designed to examine the effects of a newly developed treatment for aphasia and acquired apraxia of speech (AOS). Combined Aphasia and Apraxia of Speech Treatment (CAAST) targets language and speech production simultaneously, with treatment techniques derived from Response Elaboration Training (Kearns, 1985) and Sound Production Treatment (Wambaugh, Kalinyak-Fliszar, West, & Doyle, 1998). The purpose of this study was to determine whether CAAST was associated with positive changes in verbal language and speech production with speakers with aphasia and AOS. Method Four participants with chronic aphasia and AOS received CAAST applied sequentially to sets of pictures in the context of multiple baseline designs. CAAST entailed elaboration of participant-initiated utterances, with sound production training applied as needed to the elaborated productions. The dependent variables were (a) production of correct information units (CIUs; Nicholas & Brookshire, 1993) in response to experimental picture stimuli, (b) percentage of consonants correct in sentence repetition, and (c) speech intelligibility. Results and Conclusions CAAST was associated with increased CIU production in trained and untrained picture sets for all participants. Gains in sound production accuracy and speech intelligibility varied across participants; a modification of CAAST to provide additional speech production treatment may be desirable.

Written training tasks are better than oral training tasks at improving L2 learners’ speech production

2019 ◽  
Vol 40 (6) ◽  
pp. 1455-1480
Author(s):  
Clara Solier ◽  
Cyril Perret ◽  
Lorraine Baqué ◽  
Christiane Soum-Favaro
Keyword(s):  
Speech Production ◽  
Stimulus Presentation ◽  
Training Task ◽  
Oral Production ◽  
Written Production ◽  
Word Repetition ◽  
L2 Learners ◽  
Experimental Training ◽  
Repetition Task ◽  
Better Than

AbstractThis study examined the effect of written input on the production of word-final vowels (oral: /i/, /e/; nasal: /ɑ̃/, /ɔ̃/) by 100 native Moroccan learners of French as a second language, relying on a pretest/posttest paradigm. During pretest, participants performed a word repetition task. Then, participants were assigned to five experimental (training) conditions, varying in the modality of stimulus presentation (oral vs. written) and in the modality of response (oral vs. written), before their oral production of the word-final vowels was evaluated in the posttest. Results clearly showed that posttest pronunciation accuracy was affected by the presence of orthographic information in the training task. The copy training task was the most efficient at improving posttest accuracy. Results indicate that orthography, and more specifically the written production copy task, helps L2 learners’ pronunciation more efficiently than phonetic correction.

Sound Production Treatment for Acquired Apraxia of Speech

2010 ◽  
Vol 20 (3) ◽  
pp. 67-72 ◽  
Author(s):  
Julie Wambaugh
Keyword(s):  
Speech Production ◽  
Systematic Study ◽  
Sound Production ◽  
Treatment Guidelines ◽  
Communication Disorders ◽  
Apraxia Of Speech ◽  
Different Types

Acquired apraxia of speech (AOS) has been demonstrated to be responsive to various types of treatments, even when AOS is chronic (Wambaugh, Duffy, McNeil, Robin, & Rogers, 2006a). Of the different types of AOS treatments, the Academy of Neurologic Communication Disorders and Sciences (ANCDS) AOS Treatment Guidelines report identified articulatory-kinematic treatments as having the strongest evidence supporting their use (Wambaugh et al., 2006a & b). Articulatory-kinematic treatments are those that employ techniques to improve speech production through the facilitation of movement, positioning, timing, and coordination of the articulators. Sound Production Treatment (SPT; Wambaugh, Kalinyak-Fliszar, West, & Doyle, 1998) is an articulatory-kinematic treatment that has received relatively more systematic study than other AOS treatments to date. This report describes SPT and the research supporting its application with speakers with AOS.

scholarly journals Patterns of Poststroke Brain Damage That Predict Speech Production Errors in Apraxia of Speech and Aphasia Dissociate

Stroke ◽  
2015 ◽  
Vol 46 (6) ◽  
pp. 1561-1566 ◽  
Author(s):  
Alexandra Basilakos ◽  
Chris Rorden ◽  
Leonardo Bonilha ◽  
Dana Moser ◽  
Julius Fridriksson
Keyword(s):  
Speech Production ◽  
Brain Damage ◽  
Apraxia Of Speech ◽  
Production Errors

A Phonomotor Approach to Apraxia of Speech Treatment

2020 ◽  
Vol 29 (4) ◽  
pp. 2109-2130
Author(s):  
Lauren Bislick
Keyword(s):  
Phase I ◽  
Treatment Effects ◽  
Single Case ◽  
Motor Planning ◽  
The Other ◽  
Multimodal Approach ◽  
Apraxia Of Speech ◽  
Duration Of Treatment ◽  
Treatment Gains ◽  
Future Work

Purpose This study continued Phase I investigation of a modified Phonomotor Treatment (PMT) Program on motor planning in two individuals with apraxia of speech (AOS) and aphasia and, with support from prior work, refined Phase I methodology for treatment intensity and duration, a measure of communicative participation, and the use of effect size benchmarks specific to AOS. Method A single-case experimental design with multiple baselines across behaviors and participants was used to examine acquisition, generalization, and maintenance of treatment effects 8–10 weeks posttreatment. Treatment was distributed 3 days a week, and duration of treatment was specific to each participant (criterion based). Experimental stimuli consisted of target sounds or clusters embedded nonwords and real words, specific to each participants' deficit. Results Findings show improved repetition accuracy for targets in trained nonwords, generalization to targets in untrained nonwords and real words, and maintenance of treatment effects at 10 weeks posttreatment for one participant and more variable outcomes for the other participant. Conclusions Results indicate that a modified version of PMT can promote generalization and maintenance of treatment gains for trained speech targets via a multimodal approach emphasizing repeated exposure and practice. While these results are promising, the frequent co-occurrence of AOS and aphasia warrants a treatment that addresses both motor planning and linguistic deficits. Thus, the application of traditional PMT with participant-specific modifications for AOS embedded into the treatment program may be a more effective approach. Future work will continue to examine and maximize improvements in motor planning, while also treating anomia in aphasia.

Sound Production Treatment for Acquired Apraxia of Speech: An Examination of Dosage in Relation to Probe Performance

2020 ◽  
pp. 1-16
Author(s):  
Julie L. Wambaugh ◽  
Lydia Kallhoff ◽  
Christina Nessler
Keyword(s):  
Retrospective Analysis ◽  
Sound Production ◽  
Apraxia Of Speech ◽  
Practice Schedule ◽  
Practice Schedules ◽  
Baseline Performance ◽  
The Mean ◽  
Number Of Treatment ◽  
The Impact

Purpose This study was designed to examine the association of dosage and effects of Sound Production Treatment (SPT) for acquired apraxia of speech. Method Treatment logs and probe data from 20 speakers with apraxia of speech and aphasia were submitted to a retrospective analysis. The number of treatment sessions and teaching episodes was examined relative to (a) change in articulation accuracy above baseline performance, (b) mastery of production, and (c) maintenance. The impact of practice schedule (SPT-Blocked vs. SPT-Random) was also examined. Results The average number of treatment sessions conducted prior to change was 5.4 for SPT-Blocked and 3.9 for SPT-Random. The mean number of teaching episodes preceding change was 334 for SPT-Blocked and 179 for SPT-Random. Mastery occurred within an average of 13.7 sessions (1,252 teaching episodes) and 12.4 sessions (1,082 teaching episodes) for SPT-Blocked and SPT-Random, respectively. Comparisons of dosage metric values across practice schedules did not reveal substantial differences. Significant negative correlations were found between follow-up probe performance and the dosage metrics. Conclusions Only a few treatment sessions were needed to achieve initial positive changes in articulation, with mastery occurring within 12–14 sessions for the majority of participants. Earlier occurrence of change or mastery was associated with better follow-up performance. Supplemental Material https://doi.org/10.23641/asha.12592190

Motor theory modulated by task load: strategies of phonological processing in frontal aphasia revealed by tDCS over the LIFG

2019 ◽  
Author(s):  
Lílian Rodrigues de Almeida ◽  
Paul A. Pope ◽  
Peter Hansen
Keyword(s):  
Speech Perception ◽  
Speech Production ◽  
Phonological Processing ◽  
Inferior Frontal Gyrus ◽  
Dorsal Stream ◽  
Superior Temporal Gyrus ◽  
Motor Theory ◽  
Task Load ◽  
Cathodal Tdcs ◽  
The Individual

In our previous studies we supported the claim that the motor theory is modulated by task load. Motoric participation in phonological processing increases from speech perception to speech production, with the endpoints of the dorsal stream having changing and complementary weightings for processing: the left inferior frontal gyrus (LIFG) being increasingly relevant and the left superior temporal gyrus (LSTG) being decreasingly relevant. Our previous results for neurostimulation of the LIFG support this model. In this study we investigated whether our claim that the motor theory is modulated by task load holds in (frontal) aphasia. Person(s) with aphasia (PWA) after stroke typically have damage on brain areas responsible for phonological processing. They may present variable patterns of recovery and, consequently, variable strategies of phonological processing. Here these strategies were investigated in two PWA with simultaneous fMRI and tDCS of the LIFG during speech perception and speech production tasks. Anodal tDCS excitation and cathodal tDCS inhibition should increase with the relevance of the target for the task. Cathodal tDCS over a target of low relevance could also induce compensation by the remaining nodes. Responses of PWA to tDCS would further depend on their pattern of recovery. Responses would depend on the responsiveness of the perilesional area, and could be weaker than in controls due to an overall hypoactivation of the cortex. Results suggest that the analysis of motor codes for articulation during phonological processing remains in frontal aphasia and that tDCS is a promising diagnostic tool to investigate the individual processing strategies.

scholarly journals Preoperative transcranial magnetic stimulation for picture naming is reliable in mapping segments of the arcuate fasciculus

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Davide Giampiccolo ◽  
Henrietta Howells ◽  
Ina Bährend ◽  
Heike Schneider ◽  
Giovanni Raffa ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Speech Production ◽  
Picture Naming ◽  
Magnetic Stimulation ◽  
Parietal Lobe ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Diffusion Imaging ◽  
Arcuate Fasciculus ◽  
Preoperative Mapping ◽  
Production Errors

Abstract In preoperative planning for neurosurgery, both anatomical (diffusion imaging tractography) and functional tools (MR-navigated transcranial magnetic stimulation) are increasingly used to identify and preserve eloquent language structures specific to individuals. Using these tools in healthy adults shows that speech production errors occur mainly in perisylvian cortical sites that correspond to subject-specific terminations of the major language pathway, the arcuate fasciculus. It is not clear whether this correspondence remains in oncological patients with altered tissue. We studied a heterogeneous cohort of 30 patients (fourteen male, mean age 44), undergoing a first or second surgery for a left hemisphere brain tumour in a language-eloquent region, to test whether speech production errors induced by preoperative transcranial magnetic stimulation had consistent anatomical correspondence to the arcuate fasciculus. We used navigated repetitive transcranial magnetic stimulation during picture naming and recorded different perisylvian sites where transient interference to speech production occurred. Spherical deconvolution diffusion imaging tractography was performed to map the direct fronto-temporal and indirect (fronto-parietal and parieto-temporal) segments of the arcuate fasciculus in each patient. Speech production errors were reported in all patients when stimulating the frontal lobe, and in over 90% of patients in the parietal lobe. Errors were less frequent in the temporal lobe (54%). In all patients, at least one error site corresponded to a termination of the arcuate fasciculus, particularly in the frontal and parietal lobes, despite distorted anatomy due to a lesion and/or previous resection. Our results indicate that there is strong correspondence between terminations of the arcuate fasciculus and speech errors. This indicates that white matter anatomy may be a robust marker for identifying functionally eloquent cortex, particularly in the frontal and parietal lobe. This knowledge may improve targets for preoperative mapping of language in the neurosurgical setting.

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