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https://www.readbyqxmd.com/read/28730641/basal-ganglia-and-autism-a-translational-perspective
#1
REVIEW
Krishna Subramanian, Cheryl Brandenburg, Fernanda Orsati, Jean-Jacques Soghomonian, John P Hussman, Gene J Blatt
The basal ganglia are a collection of nuclei below the cortical surface that are involved in both motor and non-motor functions, including higher order cognition, social interactions, speech, and repetitive behaviors. Motor development milestones that are delayed in autism such as gross motor, fine motor and walking can aid in early diagnosis of autism. Neuropathology and neuroimaging findings in autism cases revealed volumetric changes and altered cell density in select basal ganglia nuclei. Interestingly, in autism, both the basal ganglia and the cerebellum are impacted both in their motor and non-motor domains and recently, found to be connected via the pons through a short disynaptic pathway...
July 21, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28720523/sensory-attenuation-of-self-initiated-sounds-maps-onto-habitual-associations-between-motor-action-and-sound
#2
Nathan G Mifsud, Thomas J Whitford
Sensory attenuation refers to reduced brain responses to self-initiated sensations relative to those produced by the external world, a distinction that is vital for dynamic motor control and our sense of agency. Typically, willed vocalizations elicit larger N1 reduction of the auditory evoked potential compared to indirectly evoked sounds, such as tones generated by button-presses, which is attributed to the prediction and cancellation of incoming signals enabled by speech motor commands. However, physical confounds exist, including different stimuli and the increased motor artefact associated with mouth vs...
July 15, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28712469/subcortical-contributions-to-motor-speech-phylogenetic-developmental-clinical
#3
REVIEW
W Ziegler, H Ackermann
Vocal learning is an exclusively human trait among primates. However, songbirds demonstrate behavioral features resembling human speech learning. Two circuits have a preeminent role in this human behavior; namely, the corticostriatal and the cerebrocerebellar motor loops. While the striatal contribution can be traced back to the avian anterior forebrain pathway (AFP), the sensorimotor adaptation functions of the cerebellum appear to be human specific in acoustic communication. This review contributes to an ongoing discussion on how birdsong translates into human speech...
July 13, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28707568/effects-of-transcranial-direct-current-stimulation-on-neural-network-structure-in-young-and-older-adults
#4
Andrew Martin, Marcus Meinzer, Robert Lindenberg, Mira M Sieg, Laura Nachtigall, Agnes Flöel
Transcranial direct current stimulation (tDCS) may be a viable tool to improve motor and cognitive function in advanced age. However, although a number of studies have demonstrated improved cognitive performance in older adults, other studies have failed to show restorative effects. The neural effects of beneficial stimulation response in both age groups is lacking. In the current study, tDCS was administered during simultaneous fMRI in 42 healthy young and older participants. Semantic word generation and motor speech baseline tasks were used to investigate behavioral and neural effects of uni- and bihemispheric motor cortex tDCS in a three-way, crossover, sham tDCS controlled design...
July 14, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28704690/joint-attention-and-oromotor-abilities-in-young-children-with-and-without-autism-spectrum-disorder
#5
Jennifer C Dalton, Elizabeth R Crais, Shelley L Velleman
PURPOSE: This study examined the relationship between joint attention ability and oromotor imitation skill in three groups of young children with and without Autism Spectrum Disorder using both nonverbal oral and verbal motor imitation tasks. Research questions addressed a) differences among joint attention and oromotor imitation abilities; b) the relationship between independently measured joint attention and oromotor imitation, both nonverbal oral and verbal motor; c) the relationships between joint attention and verbal motor imitation during interpersonal interaction; and d) the relationship between the sensory input demands (auditory, visual, and tactile) and oromotor imitation, both nonverbal oral and verbal motor...
July 1, 2017: Journal of Communication Disorders
https://www.readbyqxmd.com/read/28704379/fractionating-nonword-repetition-the-contributions-of-short-term-memory-and-oromotor-praxis-are-different
#6
Saloni Krishnan, Katherine J Alcock, Daniel Carey, Lina Bergström, Annette Karmiloff-Smith, Frederic Dick
The ability to reproduce novel words is a sensitive marker of language impairment across a variety of developmental disorders. Nonword repetition tasks are thought to reflect phonological short-term memory skills. Yet, when children hear and then utter a word for the first time, they must transform a novel speech signal into a series of coordinated, precisely timed oral movements. Little is known about how children's oromotor speed, planning and co-ordination abilities might influence their ability to repeat novel nonwords, beyond the influence of higher-level cognitive and linguistic skills...
2017: PloS One
https://www.readbyqxmd.com/read/28704266/electrical-stimulation-therapy-for-dysphagia-a-follow-up-survey-of-usa-dysphagia-practitioners
#7
Ali Barikroo, Giselle Carnaby, Michael Crary
The aim of this study was to compare current application, practice patterns, clinical outcomes, and professional attitudes of dysphagia practitioners regarding electrical stimulation (e-stim) therapy with similar data obtained in 2005. A web-based survey was posted on the American Speech-Language-Hearing Association Special Interest Group 13 webpage for 1 month. A total of 271 survey responses were analyzed and descriptively compared with the archived responses from the 2005 survey. Results suggested that e-stim application increased by 47% among dysphagia practitioners over the last 10 years...
July 12, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28703919/cingulate-and-cerebellar-beta-oscillations-are-engaged-in-the-acquisition-of-auditory-motor-sequences
#8
María Herrojo Ruiz, Burkhard Maess, Eckart Altenmüller, Gabriel Curio, Vadim V Nikulin
Singing, music performance, and speech rely on the retrieval of complex sounds, which are generated by the corresponding actions and are organized into sequences. It is crucial in these forms of behavior that the serial organization (i.e., order) of both the actions and associated sounds be monitored and learned. To investigate the neural processes involved in the monitoring of serial order during the initial learning of sensorimotor sequences, we performed magnetoencephalographic recordings while participants explicitly learned short piano sequences under the effect of occasional alterations of auditory feedback (AAF)...
July 13, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28698541/ataxia-telangiectasia-in-siblings-oral-motor-and-swallowing-characterization
#9
Silmara Rondon-Melo, Isabel Junqueira de Almeida, Claudia Regina Furquim de Andrade, Fernanda Chiarion Sassi, Daniela Regina Molini-Avejonas
BACKGROUND The body of literature on oral motor and swallowing disorders in patients with ataxia telangiectasia (AT) is limited. CASE REPORT The purpose of this study was to characterize oral motor and swallowing disorders in two siblings with AT, based on oral motor and swallowing assessments. Specific procedures were applied for oral motor and swallowing assessments and both patients underwent videofluoroscopy (VFS). Case 1 presented vocal instability, change in postural control during feeding; food retention in oral cavity; slower oral transit time; and multiple swallowing (signs for solid and liquid)...
July 12, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28686046/the-challenges-of-dysphagia-in-treating-motor-neurone-disease
#10
Siobhan Vesey
Motor neurone disease (MND) is a relatively rare degenerative disorder. Its impacts are manifested in progressive loss of motor function and often accompanied by wider non-motor changes. Swallowing and speech abilities are frequently severely impaired. Effective management of dysphagia (swallowing difficulty) symptoms and nutritional care requires a holistic multidisciplinary approach. Care must be patient focused, facilitate patient decision making, and support planning towards end of life care. This article discusses the challenges of providing effective nutritional care to people living with motor neurone disease who have dysphagia...
July 1, 2017: British Journal of Community Nursing
https://www.readbyqxmd.com/read/28681758/basal-ganglia-their-role-in-complex-cognitive-procedures-in-experimental-models-and-in-clinical-practice
#11
Rita Moretti, Paola Caruso, Elena Crisman, Silvia Gazzin
Apart from the well known role of the basal ganglia (BG) in motor control, their important role in regulating the cognitive functions is emerging. This article traces the scientific work that explores this role of BG in reinforcement learning, perceptual decision making, and other nonmotor pathways (speech fluency, cognition, attention and behaviour). It also highlights the important role played by the BG networks in determining the development of a child's brain. It retraces the various pathways and connections of the BG with the cerebral cortex, cerebellum and other regions that may be utilized in the establishment of complex cognitive procedures...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28681387/effect-of-functional-chewing-training-on-tongue-thrust-and-drooling-in-children-with-cerebral-palsy-a-randomised-controlled-trial
#12
Özgü Inal, Selen Serel Arslan, Numan Demir, Öznur Tunca Yilmaz, Aynur Ayşe Karaduman
BACKGROUND: Tongue thrust which is an oral reflex associated with sucking behaviour may cause problems in swallowing, speech, orofacial development, and also drooling. OBJECTIVE: We aimed to examine the effect of Functional Chewing Training(FuCT) on tongue thrust and drooling in children with cerebral palsy (CP). METHODS: The study included 32 children with a mean age of 58.25±9.58 months who had tongue thrust. Children were divided into two groups: The FuCT group and control group receiving classical oral motor exercises...
July 6, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28678830/adverse-events-in-deep-brain-stimulation-a-retrospective-long-term-analysis-of-neurological-psychiatric-and-other-occurrences
#13
Carsten Buhmann, Torge Huckhagel, Katja Engel, Alessandro Gulberti, Ute Hidding, Monika Poetter-Nerger, Ines Goerendt, Peter Ludewig, Hanna Braass, Chi-Un Choe, Kara Krajewski, Christian Oehlwein, Katrin Mittmann, Andreas K Engel, Christian Gerloff, Manfred Westphal, Johannes A Köppen, Christian K E Moll, Wolfgang Hamel
BACKGROUND AND OBJECTIVE: The extent to which deep brain stimulation (DBS) can improve quality of life may be perceived as a permanent trade-off between neurological improvements and complications of therapy, comorbidities, and disease progression. PATIENTS AND METHODS: We retrospectively investigated 123 consecutive and non-preselected patients. Indications for DBS surgery were Parkinson's disease (82), dystonia (18), tremor of different etiology (21), Huntington's disease (1) and Gilles de la Tourette syndrome (1)...
2017: PloS One
https://www.readbyqxmd.com/read/28676921/electrophysiological-evidence-for-a-self-processing-advantage-during-audiovisual-speech-integration
#14
Avril Treille, Coriandre Vilain, Sonia Kandel, Marc Sato
Previous electrophysiological studies have provided strong evidence for early multisensory integrative mechanisms during audiovisual speech perception. From these studies, one unanswered issue is whether hearing our own voice and seeing our own articulatory gestures facilitate speech perception, possibly through a better processing and integration of sensory inputs with our own sensory-motor knowledge. The present EEG study examined the impact of self-knowledge during the perception of auditory (A), visual (V) and audiovisual (AV) speech stimuli that were previously recorded from the participant or from a speaker he/she had never met...
July 4, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28673720/schizophrenia-affects-speech-induced-functional-connectivity-of-the-superior-temporal-gyrus-under-cocktail-party-listening-conditions
#15
Juanhua Li, Chao Wu, Yingjun Zheng, Ruikeng Li, Xuanzi Li, Shenglin She, Haibo Wu, Hongjun Peng, Yuping Ning, Liang Li
The superior temporal gyrus (STG) is involved in speech recognition against informational masking under cocktail-party-listening conditions. Compared to healthy listeners, people with schizophrenia perform worse in speech recognition under informational speech-on-speech masking conditions. It is not clear whether the schizophrenia-related vulnerability to informational masking is associated with certain changes in FC of the STG with some critical brain regions. Using sparse-sampling fMRI design, this study investigated the differences between people with schizophrenia and healthy controls in FC of the STG for target-speech listening against informational speech-on-speech masking, when a listening condition with either perceived spatial separation (PSS, with a spatial release of informational masking) or perceived spatial co-location (PSC, without the spatial release) between target speech and masking speech was introduced...
July 1, 2017: Neuroscience
https://www.readbyqxmd.com/read/28672283/effects-of-a-conversation-based-intervention-on-the-linguistic-skills-of-children-with-motor-speech-disorders-who-use-augmentative-and-alternative-communication
#16
Gloria Soto, Michael T Clarke
Purpose: This study was conducted to evaluate the effects of a conversation-based intervention on the expressive vocabulary and grammatical skills of children with severe motor speech disorders and expressive language delay who use augmentative and alternative communication. Method: Eight children aged from 8 to 13 years participated in the study. After a baseline period, a conversation-based intervention was provided for each participant, in which they were supported to learn and use linguistic structures essential for the formation of clauses and the grammaticalization of their utterances, such as pronouns, verbs, and bound morphemes, in the context of personally meaningful and scaffolded conversations with trained clinicians...
July 3, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28665156/fluency-adaptation-in-speakers-with-parkinson-disease-a-motor-learning-perspective
#17
Jason A Whitfield, Catharine Delong, Alexander M Goberman, Michael Blomgren
PURPOSE: Fluency adaptation is characterised by a reduction in stuttering-like behaviours over successive readings of the same speech material and is an effect that is typically observed in developmental stuttering. Prominent theories suggest that short-term motor learning associated with practice explain, in part, fluency adaptation. The current investigation examined the fluency adaptation effect in a group of speakers with Parkinson disease (PD) who exhibited stuttering-like disfluencies...
June 30, 2017: International Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28663005/music-based-interventions-in-neurological-rehabilitation
#18
REVIEW
Aleksi J Sihvonen, Teppo Särkämö, Vera Leo, Mari Tervaniemi, Eckart Altenmüller, Seppo Soinila
During the past ten years, an increasing number of controlled studies have assessed the potential rehabilitative effects of music-based interventions, such as music listening, singing, or playing an instrument, in several neurological diseases. Although the number of studies and extent of available evidence is greatest in stroke and dementia, there is also evidence for the effects of music-based interventions on supporting cognition, motor function, or emotional wellbeing in people with Parkinson's disease, epilepsy, or multiple sclerosis...
August 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28659154/spinocerebellar-ataxia-type-29-due-to-mutations-in-itpr1-a-case-series-and-review-of-this-emerging-congenital-ataxia
#19
Jessica L Zambonin, Allison Bellomo, Hilla Ben-Pazi, David B Everman, Lee M Frazer, Michael T Geraghty, Amy D Harper, Julie R Jones, Benjamin Kamien, Kristin Kernohan, Mary Kay Koenig, Matthew Lines, Elizabeth Emma Palmer, Randal Richardson, Reeval Segel, Mark Tarnopolsky, Jason R Vanstone, Melissa Gibbons, Abigail Collins, Brent L Fogel, Tracy Dudding-Byth, Kym M Boycott
BACKGROUND: Spinocerebellar ataxia type 29 (SCA29) is an autosomal dominant, non-progressive cerebellar ataxia characterized by infantile-onset hypotonia, gross motor delay and cognitive impairment. Affected individuals exhibit cerebellar dysfunction and often have cerebellar atrophy on neuroimaging. Recently, missense mutations in ITPR1 were determined to be responsible. RESULTS: Clinical information on 21 individuals from 15 unrelated families with ITPR1 mutations was retrospectively collected using standardized questionnaires, including 11 previously unreported singletons and 2 new patients from a previously reported family...
June 28, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28658048/increased-activation-of-the-hippocampus-during-a-chinese-character-subvocalization-task-in-adults-with-cleft-lip-and-palate-palatoplasty-and-speech-therapy
#20
Wenjing Zhang, Chunlin Li, Long Chen, Xiyue Xing, Xiangyang Li, Zhi Yang, Haiyan Zhang, Renji Chen
This study aimed to explore brain activation in patients with cleft lip and palate (CLP) using a Chinese character subvocalization task, in which the stimuli were selected from a clinical articulation evaluation test. CLP is a congenital disability. Individuals with CLP usually have articulation disorder caused by abnormal lip and palate structure. Previous studies showed that primary somatosensory and motor areas had a significant difference in activation in patients with CLP. However, whether brain activation was restored to a normal level after palatoplasty and speech rehabilitation is not clear...
August 16, 2017: Neuroreport
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