Recovering With Acquired Apraxia of Speech: The First 2 Years

Haley, Katarina L.; Shafer, Jennifer S.; Harmon, Tyson G.; Jacks, Adam

doi:10.1044/2016_ajslp-15-0143

Cited by 10 publications

(7 citation statements)

References 22 publications

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“…Interactions among diagnostic criteria should be explored, as should their relationship to recovery. We recently documented different recovery trajectories for speaking rate and fluency than for distortion frequency in a speaker with relatively pure AOS, and also observed a dynamic, and at least partially intentional, tradeoff between accuracy and rate (Haley et al, 2016). Examination of how dynamic performance profiles change over time is a logical extension of the performance continua we observed in the present study.…”

Section: Group Differences and Performance Continuasupporting

confidence: 67%

“…The response to each item was recorded as a separate audio file, using custom software controlled by the clinician. The full protocol included sentences as well as serial repetition of multisyllabic words (Haley et al, 2012(Haley et al, , 2016. However, for the purpose of this study, we analyzed only single-word productions (see Appendix A).…”

Section: Methods Participantsmentioning

confidence: 99%

“…We recently analyzed speech samples from 14 individuals with speech sound production errors after stroke or traumatic brain injury (Cunningham et al, 2016) and one speaker recovering from traumatic brain injury (Haley, Shafer, Harmon, & Jacks, 2016) by using a comprehensive set of diacritic marks from an educational resource for narrow phonetic transcription (Shriberg & Kent, 2013). Although the results were consistent with previously reported distortion of length, partial consonant voicing, and tonguebody position for vowels, we also observed other types of imprecise production covered in the broader set of diacritic marks, including partial rhoticity and subphonemic deviations in consonant manner and place of articulation.…”

Section: Defining Segment Distortions and Distorted Substitutionsmentioning

confidence: 99%

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Perceptually Salient Sound Distortions and Apraxia of Speech: A Performance Continuum

Haley

Jacks

Richardson

et al. 2017

Am J Speech Lang Pathol

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Section: Group Differences and Performance Continuasupporting

confidence: 67%

Section: Methods Participantsmentioning

confidence: 99%

Section: Defining Segment Distortions and Distorted Substitutionsmentioning

confidence: 99%

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Perceptually Salient Sound Distortions and Apraxia of Speech: A Performance Continuum

Haley

Jacks

Richardson

et al. 2017

Am J Speech Lang Pathol

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“…Over the past decades, the speech of people with AOS has frequently been described as "effortful" (see McNeil, Ballard, Duffy, & Wambaugh, 2017 for a review). Qualitative evidence also supports that talking requires great effort and attention for people with AOS (e.g., Haley, Shafer, Harmon, & Jacks, 2016). Future research is needed to further investigate the role of attention on speech production in AOS.…”

Section: Limitations and Future Directionsmentioning

confidence: 85%

Speech Fluency in Acquired Apraxia of Speech During Narrative Discourse: Group Comparisons and Dual-Task Effects

Harmon

Jacks

Haley

2019

Am J Speech Lang Pathol

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Purpose Slowed speech and interruptions to the flow of connected speech are common in aphasia. These features are also observed during dual-task performance for neurotypical adults. The purposes of this study were to determine (a) whether indices of fluency related to cognitive–linguistic versus motor processing would differ between speakers with aphasia plus apraxia of speech (AOS) and speakers with aphasia only and (b) whether cognitive load reduces fluency in speakers with aphasia with and without AOS. Method Fourteen speakers with aphasia (7 with AOS) and 7 neurotypical controls retold short stories alone (single task) and while simultaneously distinguishing between a high and a low tone (dual task). Their narrative samples were analyzed for speech fluency according to sample duration, speech rate, pause/fill time, and repetitions per syllable. Results As expected, both speaker groups with aphasia spoke slower and with more pauses than the neurotypical controls. The speakers with AOS produced more repetitions and longer samples than controls, but they did not differ on these measures from the speakers with aphasia without AOS. Relative to the single-task condition, the dual-task condition increased the duration of pauses and fillers for all groups but reduced speaking rate only for the control group. Sample duration and frequency of repetitions did not change in response to cognitive load. Conclusions Speech output in aphasia becomes less fluent when speakers have to engage in simultaneous tasks, as is typical in everyday conversation. Although AOS may lead to more sound and syllable repetitions than normal, speaking tasks other than narrative discourse might better capture this specific type of disfluency. Future research is needed to confirm and expand these preliminary findings. Supplemental Material https://doi.org/10.23641/asha.8847845

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“…There is a shortage of research involving patients with AOS in an acute/subacute phase after stroke and of studies that investigate how AOS symptoms evolves over time (17,18). Studies of speech-language recovery after stroke have mainly focused on aphasia [e.g., see (19,20)] and very limited information exists about the dynamics of recovery from AOS relative to concomitant aphasia.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Apraxia of Speech and Aphasia in Patients With Hand Motor Impairment After Stroke

et al. 2021

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Objective: Aphasia and apraxia of speech (AOS) after stroke frequently co-occur with a hand motor impairment but few studies have investigated stroke recovery across motor and speech-language domains. In this study, we set out to test the shared recovery hypothesis. We aimed to (1) describe the prevalence of AOS and aphasia in subacute stroke patients with a hand motor impairment and (2) to compare recovery across speech-language and hand motor domains. In addition, we also explored factors predicting recovery from AOS.Methods: Seventy participants with mild to severe paresis in the upper extremity were assessed; 50% of these (n = 35) had left hemisphere (LH) lesions. Aphasia, AOS and hand motor assessments and magnetic resonance imaging were conducted at 4 weeks (A1) and at 6 months (A2) after stroke onset. Recovery was characterized in 15 participants showing initial aphasia that also had complete follow-up data at 6 months.Results: All participants with AOS and/or aphasia had LH lesions. In LH lesioned, the prevalence of aphasia was 71% and of AOS 57%. All participants with AOS had aphasia; 80% of the participants with aphasia also had AOS. Recovery in aphasia (n = 15) and AOS (n = 12) followed a parallel pattern to that observed in hand motor impairment and recovery correlated positively across speech-language and motor domains. The majority of participants with severe initial aphasia and AOS showed a limited but similar amount of recovery across domains. Lesion volume did not correlate with results from behavioral assessments, nor with recovery. The initial aphasia score was the strongest predictor of AOS recovery.Conclusion: Our findings confirm the common occurrence of AOS and aphasia in left hemisphere stroke patients with a hand motor impairment. Recovery was similar across speech-language and motor domains, even in patients with severe impairment, supporting the shared recovery hypothesis and that similar brain recovery mechanisms are involved in speech-language and motor recovery post stroke. These observations contribute to the knowledge of AOS and its relation to motor and language functions and add information that may serve as a basis for future studies of post stroke recovery. Studies including neuroimaging and/or biological assays are required to gain further knowledge on shared brain recovery mechanisms.

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Recovering With Acquired Apraxia of Speech: The First 2 Years

Cited by 10 publications

References 22 publications

Perceptually Salient Sound Distortions and Apraxia of Speech: A Performance Continuum

Perceptually Salient Sound Distortions and Apraxia of Speech: A Performance Continuum

Speech Fluency in Acquired Apraxia of Speech During Narrative Discourse: Group Comparisons and Dual-Task Effects

Recovery of Apraxia of Speech and Aphasia in Patients With Hand Motor Impairment After Stroke

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