Voice Onset Time in Consonant Cluster Errors: Can Phonetic Accommodation Differentiate Cognitive From Motor Errors?

Pouplier, Marianne; Marin, Ştefania; Waltl, Susanne

doi:10.1044/2014_jslhr-s-12-0412

Cited by 12 publications

(11 citation statements)

References 43 publications

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“…This parallel processing results in the irregularities captured by acoustic analyses. Similar patterns have been also observed in normal speakers using the tongue-twisters paradigm (Goldrick & Blumstein, 2006;Pouplier, Marin & Waltl, 2014).…”

Section: Introductionsupporting

confidence: 66%

Predicting segmental substitution errors in aphasic patients with phonological and phonetic encoding impairments

Marczyk¹,

Baqué²

2015

loquens

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Citation / Cómo citar este artículo: Anna Marczyk and Lorraine Baqué. Predicting segmental substitution errors in aphasic patients with phonological and phonetic encoding impairments. Loquens, 2(2), e023. doi: http://dx.doi. org/10. 3989/loquens.2015.023 ABSTRACT: This paper analyses the factors that predict substitution errors produced by four Broca's and four conduction aphasic subjects, all native speakers of Spanish, in reading and repetition tasks. Errors were elicited using a list of words where type of consonant, lexical stress and phonetic context were controlled for and where variables related to frequency of occurrence (word and syllable) and phonological neighbourhood characteristics were assigned using available online corpora. 675 substitution errors were obtained and preferential tendencies to devoice, occlusivise or spirantise were identified. Logistic regression mixed-effect models were performed on these three types of substitution errors to identify the predictors depending on the aphasic profile.While our results lent support to the hypothesis of a concomitant phonetic deficit in fluent aphasia, contrary to the classical claim, it also revealed differential patterns in the phonic behaviour of patients regarding the access to mental syllabary or syllabic position effects.Our results are discussed in relation to the phonetic vs. phonological impairments dimension in aphasia and the seriality/interactivity axis in speech architectures.Keywords: phonetic and phonological impairments; aphasia; substitution errors. RESUMEN: Estudio de predictores de los errores segmentales de sustitución en pacientes afásicos con un déficit fonético-fonológico.Este estudio se propone identificar los factores que permiten predecir la aparición de errores segmentales de sustitución producidos por pacientes con afasia de Broca y de conducción en tareas de lectura y de repetición. El corpus utilizado para obtener los errores consistía en 240 palabras en las que las consonantes objeto de estudio -oclusivas, fricativas y africadas del español-se encontraban en distintos contextos fonéticos y acentuales. Posteriormente, se atribuyó a las palabras del corpus los valores relativos a la frecuencia léxica y silábica, así como las características relacionadas con la vecindad fonológica, empleando para ello corpus disponibles en línea.En total, se obtuvieron 675 sustituciones, en las que prevalecen tres tendencias: ensordecimiento de las oclusivas sonoras, refuerzo (oclusivización) de las fricativas y espirantización de las oclusivas. Para identificar los predictores de cualquiera de estos tres tipos de substitución en relación con el perfil clínico de afasia, se efectuó un análisis mediante el modelo mixto de regresión logística.Los resultados son globalmente congruentes con la hipótesis de un déficit fonético concomitante al déficit fonológico en la afasia de conducción, contrariamente a las predicciones de la hipótesis clásica. Sin embargo, el examen de los errores revela también patrones de tratamiento fónico distintos se...

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Section: Introductionsupporting

confidence: 66%

Predicting segmental substitution errors in aphasic patients with phonological and phonetic encoding impairments

Marczyk¹,

Baqué²

2015

loquens

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“…Momentary (within a few milliseconds) increases in amplitude of the inappropriate between-words abrupt pauses are consistent with deficits associated with state feedback control theory (Houde & Nagarajan, 2011), with possible control parameters including movement commands for respiratory, laryngeal, and articulatory targets. Phonatory behaviors as biomarkers of apraxia of speech, in particular, have attractive measurement features as they do in research in voice, dysfluency, and other motor speech disorders (e.g., Civier, Bullock, Max, & Guenther, 2013;Cohen, Renshaw, Mitchell, & Kim, 2016;Kim, 2015;Konopka & Roberts, 2016;Kumar, Croxson, & Simonyan, 2016;Ludlow, 2015;Neef, Anwander, & Friederici, 2015;Pouplier, Marin, & Waltl, 2014;Simonyan, 2013;Simonyan & Horwitz, 2011;Vanhoutte et al, 2014). In the present context, the same control mechanism underlying an abrupt inappropriate speech onset could underlie the excessive/equal sentential stress sign of CAS described previously.…”

Section: Abrupt Inappropriate Word Onsets/offsetsmentioning

confidence: 63%

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: IV. The Pause Marker Index

Shriberg

Strand

Fourakis

et al. 2017

J Speech Lang Hear Res

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Purpose: Three previous articles provided rationale, methods, and several forms of validity support for a diagnostic marker of childhood apraxia of speech (CAS), termed the pause marker (PM). Goals of the present article were to assess the validity and stability of the PM Index (PMI) to scale CAS severity. Method: PM scores and speech, prosody, and voice precision-stability data were obtained for participants with CAS in idiopathic, neurogenetic, and complex neurodevelopmental disorders; adult-onset apraxia of speech consequent to stroke and primary progressive apraxia; and idiopathic speech delay. Three studies were completed including criterion and concurrent validity studies of the PMI and a temporal stability study of the PMI using retrospective case studies. Results: PM scores were significantly correlated with other signs of CAS precision and stability. The best fit of the distribution of PM scores to index CAS severity was obtained by dividing scores into 4 ordinal severity classifications: mild, mild-moderate, moderate-severe, and severe. Severity findings for the 4 classifications and retrospective longitudinal findings from 8 participants with CAS supported the validity and stability of the PMI. Conclusion: Findings support research and clinical use of the PMI to scale the severity of CAS.A four-article series (Shriberg et al., 2017a(Shriberg et al., , 2017b(Shriberg et al., , 2017c, and the present article) to develop and assess the theoretical and clinical utility of a singlesign, behavioral marker of childhood apraxia of speech (CAS) poses the following three questions: 1.Do findings from construct and criterion validity studies support the diagnostic accuracy of a behavioral marker, the pause marker (PM), to discriminate CAS from speech delay (SD)?2. Do findings from the PM and other measures support the hypothesis of core representational and transcoding deficits in CAS, and is the PM theoretically coherent with those deficits?3. Do findings from cross-sectional and retrospective longitudinal case studies support an ordinal scale of PM scores, the Pause Marker Index (PMI), to quantify the severity of CAS for research and clinical applications?The short-term goal of the PM is to provide a behavioral marker of CAS for research and clinical practice. A longer term goal of the PM is to provide quantitative inclusionary and exclusionary criteria to identify participants who are true positive for CAS in studies to identify and validate a biomarker of CAS. The present article addresses both goals. As proposed in the first article in this series (PM I; Shriberg et al., 2017a, Table 1), a highly valued attribute of diagnostic markers is generality, that is, a marker has research and clinical utility beyond identifying presence or absence of a disorder. In the present context, a behavioral marker of CAS has research and clinical generality when in addition to being diagnostically sensitive to and specific for a prior, active, and/or future disorder, it also quantifies the severity of the disorder. The three...

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“…As mentioned in the Introduction, there is clear and consistent evidence that some spoken production errors reflect properties of the target and the error, which suggests that the activation of the target influences the error response through cascading activation (unimpaired participants: Goldrick & Blumstein, 2006;McMillan & Corley, 2010;Goldrick, Baker, Murphy, & Baese-Berk, 2011;Pouplier, Marin, & Waltl, 2014;impaired participants: Kurowski & Blumstein, 2016;Laganaro, 2012). For example, Goldrick and Blumstein (2006) observed that voicing errors (e.g., /k/ → [g]) were produced with longer VOTs than accurately produced voiced consonants (e.g., /g/ → [g]), revealing the partial activation from the target /k/ in the case of the errors, and a similar finding was reported in the errors of individuals with aphasia (Kurowski & Blumstein, 2016).…”

Section: Interactivity In Spoken Productionmentioning

confidence: 99%

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

Buchwald

Gagnon

Miozzo

2017

J Speech Lang Hear Res

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,d 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.

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Voice Onset Time in Consonant Cluster Errors: Can Phonetic Accommodation Differentiate Cognitive From Motor Errors?

Abstract: The data overall do not allow using (a lack of) accommodation as a diagnostic as to the processing level at which an error has occurred. The data support speech production models that allow for an integrated view of phonological and phonetic processing.

Cited by 12 publications

References 43 publications

Predicting segmental substitution errors in aphasic patients with phonological and phonetic encoding impairments

Predicting segmental substitution errors in aphasic patients with phonological and phonetic encoding impairments

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: IV. The Pause Marker Index

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

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