Papers by Ben A . M . Maassen
De classificatie en differentiaaldiagnose van spraakontwikkelingsstoornissen is nog altijd een co... more De classificatie en differentiaaldiagnose van spraakontwikkelingsstoornissen is nog altijd een controversieel thema. De verschillende diagnostische categorieën zijn gedefinieerd op procesniveau, in termen van het cognitieve proces waar de kern van de onderliggende stoornis zich bevindt, en ook de meeste behandelmethoden zijn gericht op verschillende delen van het spraakproductieproces. In de klinische praktijk wordt de differentiaaldiagnose echter gebaseerd op gedragssymptomen, met methoden die bovendien vaak niet gestandaardiseerd en/of genormeerd zijn. Het diagnostische dilemma is dat het onderzoek naar de gedragskarakteristieken van de verschillende subtypes afhankelijk is van 'zuivere' casussen geselecteerd op basis van niet-ambigue, helder afgebakende criteria, die echter alleen gedefinieerd en beschikbaar gemaakt kunnen worden als resultaat van onderzoek naar a priori ongedefineerde casussen. In dit paper bespreken we een procesgerichte aanpak van differentiaaldiagnose en indicatiestelling gebaseerd op drie onderzoekslijnen waarmee die circulariteit doorbroken kan worden. De kern van de aanpak bestaat uit drie belangrijke punten/inzichten: 1. Waar gedragssymptomatologie onduidelijk is, is het wel mogelijk om op procesniveau specifieke problemen in deelprocessen helder te definiëren. (Een focus op onderliggende processen in plaats van classificatie op basis van gedragssymptomen.) 2. Processen beïnvloeden elkaar: een stoornis op één procesniveau beïnvloedt het functioneren en de ontwikkeling van andere processen. (Een focus op procesprofielen met gradaties van betrokkenheid.
De classificatie en differentiaaldiagnose van spraakontwikkelingsstoornissen is nog altijd een co... more De classificatie en differentiaaldiagnose van spraakontwikkelingsstoornissen is nog altijd een controversieel thema. De verschillende diagnostische categorieën zijn gedefinieerd op procesniveau, in termen van het cognitieve proces waar de kern van de onderliggende stoornis zich bevindt, en ook de meeste behandelmethoden zijn gericht op verschillende delen van het spraakproductieproces. In de klinische praktijk wordt de differentiaaldiagnose echter gebaseerd op gedragssymptomen, met methoden die bovendien vaak niet gestandaardiseerd en/of genormeerd zijn. Het diagnostische dilemma is dat het onderzoek naar de gedragskarakteristieken van de verschillende subtypes afhankelijk is van 'zuivere' casussen geselecteerd op basis van niet-ambigue, helder afgebakende criteria, die echter alleen gedefinieerd en beschikbaar gemaakt kunnen worden als resultaat van onderzoek naar a priori ongedefineerde casussen. In dit paper bespreken we een procesgerichte aanpak van differentiaaldiagnose en indicatiestelling gebaseerd op drie onderzoekslijnen waarmee die circulariteit doorbroken kan worden. De kern van de aanpak bestaat uit drie belangrijke punten/inzichten: 1. Waar gedragssymptomatologie onduidelijk is, is het wel mogelijk om op procesniveau specifieke problemen in deelprocessen helder te definiëren. (Een focus op onderliggende processen in plaats van classificatie op basis van gedragssymptomen.) 2. Processen beïnvloeden elkaar: een stoornis op één procesniveau beïnvloedt het functioneren en de ontwikkeling van andere processen. (Een focus op procesprofielen met gradaties van betrokkenheid.
American Journal of Speech-language Pathology, Aug 4, 2020
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International Journal of Speech-Language Pathology, Feb 19, 2021
Purpose: The current study aims to provide normative data for the maximum repetition rate (MRR) d... more Purpose: The current study aims to provide normative data for the maximum repetition rate (MRR) development of Dutch-speaking children based on a large cross-sectional study using a standardised protocol. Method: A group of 1014 typically developing children aged 3;0 to 6;11 years performed the MRR task of the Computer Articulation Instrument (CAI). The number of syllables per second was calculated for mono-, bi-, and trisyllabic sequences (MRR-pa, MRR-ta, MRR-ka, MRR-pata, MRR-taka, MRR-pataka). A two-way mixed ANOVA was conducted to compare the effects of age and gender on MRR scores in different MRR sequences. Result: The data analysis showed that overall MRR scores were affected by age group, gender and MRR sequence. For all MRR sequences the MRR increased significantly with age. MRR-pa was the fastest sequence, followed by respectively MRR-ta, MRR-pata, MRR-taka, MRR-ka and MRR-pataka. Overall MRR scores were higher for boys than for girls, for all MRR sequences. Conclusion: This study presents normative data of MRR of Dutch-speaking children aged 3;0 to 6;11 years. These norms might be useful in clinical practice to differentiate children with speech sound disorders from typically developing children. More research on this topic is necessary. It is also suggested to collect normative data for other individual languages, using the same protocol.
Folia Phoniatrica Et Logopaedica, 2019
Background: Differential diagnosis and treatment planning of developmental speech disorders (DSD)... more Background: Differential diagnosis and treatment planning of developmental speech disorders (DSD) remains a major challenge in paediatric speech-language pathology. Different classification systems exist, in which subtypes are differentiated based on their theoretical cause and in which the definitions generally refer to speech production processes. Accordingly, various intervention methods have been developed aiming at different parts of the speech production process. Diagnostic classification in these systems, however, is primarily based on a description of behavioural speech symptoms rather than on underlying deficits. Purpose: In this paper, we present a process-oriented approach to diagnosis and treatment planning of DSD. Our framework comprises two general diagnostic categories: developmental delay and developmental disorder. Within these categories, treatment goals/targets and treatment methods are formulated at the level of processes and rules/representations. Conclusion: A process-oriented approach to diagnosis and treatment planning holds important advantages, offering direct leads for treatment aimed at the underlying impairment, tailored to the specific needs of the individual and adjusted to the developmental trajectory.
American Journal of Speech-language Pathology, Nov 21, 2018
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International Journal of Speech-Language Pathology
Journal of Medical Speech-language Pathology, 2013
This study investigated the contribution of lateral movement to articulatory (in)stability. Using... more This study investigated the contribution of lateral movement to articulatory (in)stability. Using an optical three-dimensional movement analysis system, articulographic data on jaw movements were collected on the reiterated productions of the words /spa:/ and /pa:s/ (consisting of the same sequence of speech sounds but with a different syllabic structure) of 18 adults, 16 5to 6-year-olds typically developing children, and five children (ages, 4–7 years) with a variety of speech sound disorders (SSDs). Results of earlier studies showed that in the midsagittal plane, articulatory movement trajectories become more stable with age and during linguistic and phonemic development. The current results on the stability of jaw movements in the coronal plane corroborate these findings. Furthermore, the results indicate deviances from the norm data for the children with SSDs; however, in the midsagittal plane, no deviances were found for jaw movements for children with SSDs and subtype childhoo...
A central issue in studies on developmental speech disorders, especially with regard to childhood... more A central issue in studies on developmental speech disorders, especially with regard to childhood apraxia of speech (CAS) and phonological disorder (PD) is the distinction between phonological and motoric processes. Acoustic studies suggest that children with CAS produce incorrect realizations of correctly selected phonemes, whereas the opposite is postulated for children with PD. Thus conceived, the underlying impairment is located at different levels of speech production in these two groups of children.
In deze studie is gekeken of bij kinderen met spraak-ontwikkelingsdyspraxie (SOD) een stoornis in... more In deze studie is gekeken of bij kinderen met spraak-ontwikkelingsdyspraxie (SOD) een stoornis in motorische planning of in de programmering gevonden kan worden. Met behulp van tweede-formant- en duurmetingen is de articulatorische samenhang van de opeenvolgende klanken in bisyllabische uitingen, met name de anticipatorische coarticulatie, onderzocht. De plaats van de syllabegrens werd gevarieerd, voorafgaand aan, of in het intervocale consonantcluster lsx/, in zowel betekenisvolle als monsensuitingen. Bij normaal sprekende kinderen werd een effect van de plaats van de syllabegrens gevonden in de segmentduren, wat geinterpreteerd kan worden als evidentie voor syllabische planning, Ook bij kinderen met SOD is dit effect gevonden, maar hierin zijn geen systematische patronen gevonden. Dit wijst op een stoornis in de syllabische planning. Onduidelijk blijft of het primair een motorisch of prosodisch planningsprobleem is. Bovendien vonden wij bij kinderen met SOD inconsistentie in herha...
While the majority of work in communication disorders has focused on English, there has been a gr... more While the majority of work in communication disorders has focused on English, there has been a growing trend in recent years for the publication of information on languages other than English. However, much of this is scattered through a large number of journals in the field of speech pathology/ communication disorders, and therefore, not always readily available to the practitioner, researcher and student. It is the aim of this series to bring together into book form surveys of existing studies on specific languages, together with new materials for the language(s) in question. We also have launched a series of companion volumes dedicated to issues related to the cross-linguistic study of communication disorders. The series does not include English (as so much work is readily available), but covers a wide number of other languages (usually separately, though sometimes two or more similar languages may be grouped together where warranted by the amount of published work currently available). We have been able to publish volumes on Finnish, Spanish, Chinese and Turkish, and books on multilingual aspects of stuttering, aphasia, and speech disorders, with several others in preparation.
Journal of Speech, Language, and Hearing Research, 2019
BackgroundWith respect to the clinical criteria for diagnosingchildhood apraxia of speech(commonl... more BackgroundWith respect to the clinical criteria for diagnosingchildhood apraxia of speech(commonly defined as a disorder of speech motor planning and/or programming), research has made important progress in recent years. Three segmental and suprasegmental speech characteristics—error inconsistency, lengthened and disrupted coarticulation, and inappropriate prosody—have gained wide acceptance in the literature for purposes of participant selection. However, little research has sought to empirically test the diagnostic validity of these features. One major obstacle to such empirical study is the fact that none of these features is stated in operationalized terms.PurposeThis tutorial provides a structured overview of perceptual, acoustic, and articulatory measurement procedures that have been used or could be used to operationalize and assess these 3 core characteristics. Methodological details are reviewed for each procedure, along with a short overview of research results reported in...
Folia Phoniatrica et Logopaedica, 2019
Background/Aims: Maximum repetition rate (MRR) is often used in the assessment of speech motor pe... more Background/Aims: Maximum repetition rate (MRR) is often used in the assessment of speech motor performance in older children and adults. The present study aimed to evaluate a standardized protocol for MRR assessment in young children in Dutch. Methods: The sample included 1,524 children of 2–7 years old with no hearing difficulties and Dutch spoken in their nursery or primary school and was representative for children in the Netherlands. The MRR protocol featured mono-, tri-, and bisyllabic sequences and was computer-implemented to maximize standardization. Results: Less than 50% of the 2-year-olds could produce >1 monosyllabic sequence correctly. Children who could not correctly produce ≥2 monosyllabic sequences could not produce any of the multisyllabic sequences. The effect of instruction (“faster” and “as fast as possible”) was small, and multiple attempts yielded a faster MRR in only 20% of the cases. MRRs did not show clinically relevant differences when calculated over dif...
Folia Phoniatrica et Logopaedica, 2016
Purpose: Adults with intellectual disabilities (ID) often show reduced speech intelligibility, wh... more Purpose: Adults with intellectual disabilities (ID) often show reduced speech intelligibility, which affects their social interaction skills. This study aims to establish the main predictors of this reduced intelligibility in order to ultimately optimise management. Method: Spontaneous speech and picture naming tasks were recorded in 36 adults with mild or moderate ID. Twenty-five naïve listeners rated the intelligibility of the spontaneous speech samples. Performance on the picture-naming task was analysed by means of a phonological error analysis based on expert transcriptions. Results: The transcription analyses showed that the phonemic and syllabic inventories of the speakers were complete. However, multiple errors at the phonemic and syllabic level were found. The frequencies of specific types of errors were related to intelligibility and quality ratings. Conclusions: The development of the phonemic and syllabic repertoire appears to be completed in adults with mild-to-moderate...
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Papers by Ben A . M . Maassen