Speech Motor Control and Predicting Disordered Speech

1999 ◽  
Vol 9 (1) ◽  
pp. 3-6
Author(s):  
H.A. Leeper
Keyword(s):  
Motor Control ◽  
Speech Production ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Speech Disorders ◽  
Pressure Regulation ◽  
Effective Strategies ◽  
Speech Output ◽  
Disordered Speech ◽  
Speech Motor

Abstract There are numerous theories of speech production that focus on motor control for regulation of speech output. One of the more prominent is the “pressure regulation-control” model that was developed from studies of the aerodynamic speech activities of normal speakers and individuals with cleft lip and palate and accompanying resonance and speech disorders. This theory aid in understanding the nature of maladaptive speech production related to velopharyngeal inadequacy (VPI). Descriptions of experimental research will be employed to relate this theory to effective strategies of speech management for individuals with VPI.

Physiologic Studies Provide New Perspectives on Early Speech Development

2010 ◽  
Vol 20 (2) ◽  
pp. 29-36
Author(s):  
Erin M. Wilson ◽  
Ignatius S. B. Nip
Keyword(s):  
Motor Control ◽  
Motor Development ◽  
Motion Tracking ◽  
Speech Development ◽  
Speech Motor Control ◽  
Therapeutic Approaches ◽  
Facial Motion ◽  
Disordered Speech ◽  
Speech Motor ◽  
Physiologic Data

Abstract Although certain speech development milestones are readily observable, the developmental course of speech motor control is largely unknown. However, recent advances in facial motion tracking systems have been used to investigate articulator movements in children and the findings from these studies are being used to further our understanding of the physiologic basis of typical and disordered speech development. Physiologic work has revealed that the emergence of speech is highly dependent on the lack of flexibility in the early oromotor system. It also has been determined that the progression of speech motor development is non-linear, a finding that has motivated researchers to investigate how variables such as oromotor control, cognition, and linguistic factors affect speech development in the form of catalysts and constraints. Physiologic data are also being used to determine if non-speech oromotor behaviors play a role in the development of speech. This improved understanding of the physiology underlying speech, as well as the factors influencing its progression, helps inform our understanding of speech motor control in children with disordered speech and provide a framework for theory-driven therapeutic approaches to treatment.

scholarly journals Consistency influences altered auditory feedback processing

2019 ◽  
Vol 72 (10) ◽  
pp. 2371-2379 ◽  
Author(s):  
Matthias K Franken ◽  
Daniel J Acheson ◽  
James M McQueen ◽  
Peter Hagoort ◽  
Frank Eisner
Keyword(s):  
Motor Control ◽  
Speech Production ◽  
Auditory Feedback ◽  
Speech Motor Control ◽  
Short Term ◽  
Feedback Processing ◽  
Motor Commands ◽  
Consistent Condition ◽  
Consistency Effect ◽  
Speech Motor

Previous research on the effect of perturbed auditory feedback in speech production has focused on two types of responses. In the short term, speakers generate compensatory motor commands in response to unexpected perturbations. In the longer term, speakers adapt feedforward motor programmes in response to feedback perturbations, to avoid future errors. The current study investigated the relation between these two types of responses to altered auditory feedback. Specifically, it was hypothesised that consistency in previous feedback perturbations would influence whether speakers adapt their feedforward motor programmes. In an altered auditory feedback paradigm, formant perturbations were applied either across all trials (the consistent condition) or only to some trials, whereas the others remained unperturbed (the inconsistent condition). The results showed that speakers’ responses were affected by feedback consistency, with stronger speech changes in the consistent condition compared with the inconsistent condition. Current models of speech-motor control can explain this consistency effect. However, the data also suggest that compensation and adaptation are distinct processes, which are not in line with all current models.

scholarly journals Corelation Of Parents’ Profiles Of Children With Late Cleft Repair In Surabaya Cleft Lip And Palate Centre (January 2015 – December 2017)

2021 ◽  
Vol 5 (1) ◽  
pp. 18
Author(s):  
Laras Puspita Ningrum ◽  
Iswinarno Doso Saputro ◽  
Lobredia Zarasade
Keyword(s):  
Cleft Palate ◽  
Primary Care Physicians ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Speech Disorders ◽  
Education Level ◽  
Optimal Time ◽  
Cross Sectional ◽  
Cleft Palate Repair ◽  
Palate Repair

Background : Optimal time of  Cleft palate repair is during the 10 to 12  month of age. In this time produce far natural results in terms of speech because it enabled the maturation of scar tissue postoperatively. The soft palate must function properly before the patient starts learning to talk, otherwise speech disorders such as persistent rhinolalia aperta might arise. In pediatric patients, the role of parents is very important on adherence to therapy.Methods: This is a cross-sectional study. The first study group was parents of patients who had surgical repair before two years old and the second group was the parents of patients who had repair after two years old. We compared age, monthly income, education level, number of children, and residential distance from Surabaya of the two groups.Results : The data of this study were obtained from the medical records of patients with cleft lip surgery at CLP Center Surabaya in 2015th – 2017th with total of 358 patients, 172 were female and 186 were male. 52 patients with delayed cleft palate surgery. Patients’ parents in both groups were mostly 31-40 years old, were high school graduated, has one child, earned less than 1.5 million rupiah a month, and lived less than 100 kms from Surabaya. From the statistical results, parent’s income has the strongest correlation with the patient’s age in cleft palate surgery (-2.7). A negative coefficient means that the less parent’s income, the more patient likely had delayed cleft palate surgery. While other factors found weak and very weak correlations.Conclusions: The results form patient's parents' interview, concluded that besides economic factors, the lack of information cleft palate treatment is the key factors that contributed to the delay of cleft palate repair. The education level does not affect the delay in cleft palate surgery, because even in high educated parents, sometimes they don’t understand the stages of cleft lip and palate treatment. This study emphasized the necessity to educate about the stages of surgery by primary care physicians, to minimize delays.

Conversational Skills of Children with Cleft Lip and Palate: A Replication and Extension

2006 ◽  
Vol 43 (2) ◽  
pp. 179-188 ◽  
Author(s):  
Melissa S. Frederickson ◽  
Kathy L. Chapman ◽  
Mary Hardin-Jones
Keyword(s):  
Speech Production ◽  
Cleft Lip ◽  
Significant Positive Correlation ◽  
Cleft Lip And Palate ◽  
Individual Child ◽  
Language Performance ◽  
Positive Correlation ◽  
Conversational Skills ◽  
Conversational Interactions ◽  
The Relationship

Objective To replicate and to extend a previous study examining the conversational skills of children with cleft lip and palate. Participants Thirty-four children (33 to 44 months) participated: 17 children with cleft lip and palate and 17 noncleft children. Methods The children were observed during an interaction with caregivers in their homes. Samples of caregiver-child interactions were coded as assertive or responsive, for type of conversational act, and for discourse level categories. Profiles of conversational activity were determined for each child based on the coding. Correlations were performed to examine the relationship between assertiveness and speech variables (articulation and resonance) for the children with cleft lip and palate. Results Group comparisons revealed that the children with cleft lip and palate produced fewer assertive utterances, were less likely to respond adequately to comments by caregivers, and produced more topic maintaining and fewer topic extending utterances than did their noncleft peers during conversational interactions. Examination of individual child data indicated that 35% of the children with cleft lip and palate exhibited conversational profiles characterized by either low assertiveness or low responsiveness. Finally, a significant positive correlation was noted between conversational assertiveness and speech production skills. Conclusion These findings suggested that the children with cleft lip and palate were less conversationally assertive than their noncleft peers. Further, there appeared to be a relationship between speech production skills and conversational skills, suggesting that poor speech may be impacting language performance for these children.

Evaluation of Speech Disorders in Children with Cleft Lip and Palate

2005 ◽  
Vol 66 (4) ◽  
pp. 270-278 ◽  
Author(s):  
Sonja Paal ◽  
Udo Reulbach ◽  
Karin Strobel-Schwarthoff ◽  
Emeka Nkenke ◽  
Maria Schuster
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Speech Disorders

Internationally Adopted Children With Unilateral Cleft Lip and Palate—Consonant Proficiency and Perceived Velopharyngeal Competence at the Age of 5

2020 ◽  
Vol 57 (7) ◽  
pp. 849-859 ◽  
Author(s):  
AnnaKarin Larsson ◽  
Carmela Miniscalco ◽  
Hans Mark ◽  
Johnna Sahlsten Schölin ◽  
Radi Jönsson ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Tertiary Hospital ◽  
Speech Disorders ◽  
Adopted Children ◽  
Daily Lives ◽  
Speech Characteristics ◽  
The Impact ◽  
Percentage Correct ◽  
Internationally Adopted

Objective: To compare consonant proficiency, consonant errors, and the perceived velopharyngeal (VP) competence in internationally adopted (IA) children with unilateral cleft lip and palate (UCLP) and nonadopted (NA) children with the same cleft–palate type at age 5. Design: Case–control study based on phonetic transcriptions of standardized speech recordings of 5-year-olds at a tertiary hospital. Participants: Twenty-five IA children were compared to 20 NA children. All consecutive patients at a cleft lip and palate center participated. Main Outcome Measure(s): Consonant proficiency was measured using percentage consonants correct, percentage consonants correct–adjusted for age, percentage correct place, percentage correct manner, and consonant inventory. Cleft speech characteristics (CSCs), developmental speech characteristics (DSCs), and the perceived VP competence were also measured. Results: The IA children had significantly lower values for all consonant proficiency variables ( p < .05) and a smaller consonant inventory ( p = .001) compared to the NA children. The IA children had a higher frequency of CSCs (IA = 84%, NA = 50%, p < .05) and DSCs (IA = 92%, NA = 65%, p = .057), and twice as many IA children as NA children had perceived VP incompetence (IA = 52%, NA = 25%, p = .17). Conclusions: Severe speech disorder was more common in IA children than in NA children at age 5. Most importantly, the speech disorders seem to be not only cleft-related. More detailed speech assessments with a broader focus are needed for IA children with UCLP. Longitudinal studies are recommended to further investigate the impact of speech difficulties in IA children’s daily lives.

scholarly journals The Quantal Larynx: The Stable Regions of Laryngeal Biomechanics and Implications for Speech Production

2017 ◽  
Vol 60 (3) ◽  
pp. 540-560 ◽  
Author(s):  
Scott Reid Moisik ◽  
Bryan Gick
Keyword(s):  
Motor Control ◽  
Speech Production ◽  
Muscle Activation ◽  
High Dimensionality ◽  
Speech Motor Control ◽  
Dimensional Model ◽  
3 Dimensional ◽  
Speech Control ◽  
Regions Of Stability ◽  
Speech Motor

Purpose Recent proposals suggest that (a) the high dimensionality of speech motor control may be reduced via modular neuromuscular organization that takes advantage of intrinsic biomechanical regions of stability and (b) computational modeling provides a means to study whether and how such modularization works. In this study, the focus is on the larynx, a structure that is fundamental to speech production because of its role in phonation and numerous articulatory functions. Method A 3-dimensional model of the larynx was created using the ArtiSynth platform ( http://www.artisynth.org ). This model was used to simulate laryngeal articulatory states, including inspiration, glottal fricative, modal prephonation, plain glottal stop, vocal–ventricular stop, and aryepiglotto–epiglottal stop and fricative. Results Speech-relevant laryngeal biomechanics is rich with “quantal” or highly stable regions within muscle activation space. Conclusions Quantal laryngeal biomechanics complement a modular view of speech control and have implications for the articulatory–biomechanical grounding of numerous phonetic and phonological phenomena.

The Dynamics of Speech Motor Control Revealed with Time-Resolved fMRI

2019 ◽  
Vol 30 (1) ◽  
pp. 241-255 ◽  
Author(s):  
Niels Janssen ◽  
Cristian Camilo Rincón Mendieta
Keyword(s):  
Motor Control ◽  
Speech Production ◽  
Temporal Dynamics ◽  
Motor Behavior ◽  
Inferior Frontal Gyrus ◽  
Brain Networks ◽  
Fmri Data ◽  
Speech Motor Control ◽  
The Brain ◽  
Speech Motor

Abstract Holding a conversation means that speech must be started, maintained, and stopped continuously. The brain networks that underlie these aspects of speech motor control remain poorly understood. Here we collected functional magnetic resonance imaging (fMRI) data while participants produced normal and fast rate speech in response to sequences of visually presented objects. We took a non-conventional approach to fMRI data analysis that allowed us to study speech motor behavior as it unfolded over time. To this end, whole-brain fMRI signals were extracted in stimulus-locked epochs using slice-based fMRI. These data were then subjected to group independent component analysis to discover spatially independent networks that were associated with different temporal activation profiles. The results revealed two basic brain networks with different temporal dynamics: a cortical network that was activated continuously during speech production, and a second cortico-subcortical network that increased in activity during the initiation and suppression of speech production. Additional analyses explored whether key areas involved in motor suppression such as the right inferior frontal gyrus, sub-thalamic nucleus and pre-supplementary motor area provide first-order signals to stop speech. The results reveal for the first time the brain networks associated with the initiation, maintenance, and suppression of speech motor behavior.

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