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https://www.readbyqxmd.com/read/27896947/reduced-modulation-of-thalamocortical-connectivity-during-exposure-to-sensory-stimuli-in-asd
#1
Shulamite A Green, Leanna Hernandez, Susan Y Bookheimer, Mirella Dapretto
Recent evidence for abnormal thalamic connectivity in autism spectrum disorders (ASD) and sensory processing disorders suggests the thalamus may play a role in sensory over-responsivity (SOR), an extreme negative response to sensory stimuli, which is common in ASD. However, there is yet little understanding of changes in thalamic connectivity during exposure to aversive sensory inputs in individuals with ASD. In particular, the pulvinar nucleus of the thalamus is implicated in atypical sensory processing given its role in selective attention, regulation, and sensory integration...
November 29, 2016: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/27876453/-i-can-t-tell-whether-it-s-my-hand-a-pilot-study-of-the-neurophenomenology-of-body-representation-during-the-rubber-hand-illusion-in-trauma-related-disorders
#2
Daniela Rabellino, Sherain Harricharan, Paul A Frewen, Dalila Burin, Margaret C McKinnon, Ruth A Lanius
BACKGROUND: Early traumatic experiences are thought to be causal factors in the development of trauma-related dissociative experiences, including depersonalization and derealization. The rubber hand illusion (RHI), a well-known paradigm that measures multi-sensorial integration of a rubber hand into one's own body representation, has been used to investigate alterations in the experience of body ownership and of body representation. Critically, however, it has never been studied in individuals with trauma-related disorders...
2016: European Journal of Psychotraumatology
https://www.readbyqxmd.com/read/27875927/what-is-being-trained-how-divergent-forms-of-plasticity-compete-to-shape-locomotor-recovery-after-spinal-cord-injury
#3
J Russell Huie, Kazuhito Morioka, Jenny Haefeli, Adam R Ferguson
Spinal cord injury (SCI) is a devastating syndrome that produces dysfunction in motor and sensory systems, manifesting as chronic paralysis, sensory changes, and pain disorders. The multifaceted and heterogeneous nature of SCI has made effective rehabilitative strategies challenging. Work over the last 40 years has aimed to overcome these obstacles by harnessing the intrinsic plasticity of the spinal cord to improve functional locomotor recovery. Intensive training after SCI facilitates lower extremity function and has shown promise as a tool for retraining the spinal cord by engaging innate locomotor circuitry in the lumbar cord...
November 22, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27871729/an-integrative-tinnitus-model-based-on-sensory-precision
#4
REVIEW
William Sedley, Karl J Friston, Phillip E Gander, Sukhbinder Kumar, Timothy D Griffiths
Tinnitus is a common disorder that often complicates hearing loss. Its mechanisms are incompletely understood. Current theories proposing pathophysiology from the ear to the cortex cannot individually - or collectively - explain the range of experimental evidence available. We propose a new framework, based on predictive coding, in which spontaneous activity in the subcortical auditory pathway constitutes a 'tinnitus precursor' which is normally ignored as imprecise evidence against the prevailing percept of 'silence'...
November 18, 2016: Trends in Neurosciences
https://www.readbyqxmd.com/read/27867664/the-case-for-musical-instrument-training-in-cerebral-palsy-for-neurorehabilitation
#5
REVIEW
Ana Alves-Pinto, Varvara Turova, Tobias Blumenstein, Renée Lampe
Recent imaging studies in cerebral palsy (CP) have described several brain structural changes, functional alterations, and neuroplastic processes that take place after brain injury during early development. These changes affect motor pathways as well as sensorimotor networks. Several of these changes correlate with behavioral measures of motor and sensory disability. It is now widely acknowledged that management of sensory deficits is relevant for rehabilitation in CP. Playing a musical instrument demands the coordination of hand movements with integrated auditory, visual, and tactile feedback, in a process that recruits multiple brain regions...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27866043/sensory-processing-disorders-in-children-with-cerebral-palsy
#6
Sílvia Leticia Pavão, Nelci Adriana Cicuto Ferreira Rocha
OBJECTIVE: To evaluate sensory processing in children with CP using the Sensory Profile questionnaire and to compare results with the ones of children with typical development (TD). METHODS: We assessed sensory processing of 59 TD children and 43 CP children using the Sensory Profile, a standardized parent reporting measure that records children's responses to sensory events in daily life. Mann-Whitney test was used to compare the results of sensory processing evaluation among the groups...
November 17, 2016: Infant Behavior & Development
https://www.readbyqxmd.com/read/27828859/aberrant-pulvinar-effective-connectivity-in-generalized-social-anxiety-disorder
#7
Reza Tadayonnejad, Heide Klumpp, Olusola Ajilore, Alex Leow, Kinh Luan Phan
Recent neuroimaging findings in general social anxiety disorder (gSAD) have extended our understanding of the neural mechanisms of gSAD beyond an amygdala-centric fear-based hyperactivity model to include other brain regions and networks relevant to salient cues. In particular, higher order areas compromising visual networks that process emotional and social information have been implicated. The pulvinar anchors this network and is a key regulatory node that mediates complex sensory inputs and the integration between limbic and frontal brain systems...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27816899/the-developmental-dynamics-of-gait-maturation-with-a-focus-on-spatiotemporal-measures
#8
REVIEW
C M Kraan, A H J Tan, K M Cornish
Gait analysis is recognised as a powerful clinical tool for studying relationships between motor control and brain function. By drawing on the literature investigating gait in individuals with neurological disorders, this review provides insight into the neural processes that contribute to and regulate specific spatiotemporal sub-components of gait and how they may mature across early to late childhood. This review also discusses the roles of changing anthropomorphic characteristics, and maturing sensory and higher-order cognitive processes in differentiating the developmental trajectories of the sub-components of gait...
October 29, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27798108/behavioural-abnormalities-in-novel-mouse-model-for-silver-russell-syndrome
#9
Grainne Iseult McNamara, Brittany Ann Davis, Dominic Michael Dwyer, Rosalind M John, Anthony Roger Isles
Silver Russell Syndrome (SRS) syndrome is an imprinting disorder involving low birth weight with complex genetics and diagnostics. Some rare SRS patients carry maternally inherited microduplications spanning the imprinted genes CDKN1C, PHLDA2, SLC22A18 and KCNQ1, suggesting that overexpression of one of more of these genes contributes to the SRS phenotype. While this molecular alteration is very rare, feeding difficulties are a very common feature of this condition. Given that SRS children also have very low body mass index, understanding the underpinning biology of the eating disorder is important, as well as potential co-occurring behavioural alterations...
October 24, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/27769743/sensorimotor-tests-unmask-a-phenotype-in-the-dyt1-knock-in-mouse-model-of-dystonia
#10
Franziska Richter, Julia Gerstenberger, Anne Bauer, Chun-Chi Liang, Angelika Richter
Hereditary generalized dystonia is often caused by a GAG deletion in TOR1A (DYT1) that encodes for the protein torsinA. Although mutation carriers show alterations in neuronal connectivity and sensorimotor deficits, only 30% develop dystonia. Uncovering the factors triggering the dystonic symptoms and underlying pathophysiology would greatly benefit the development of more effective therapies. In DYT1 knock-in (KI) mice, the expression of torsinA mutant alters the connectivity of neurons and the function of striatal cholinergic interneurons...
October 18, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27726691/poor-imitative-performance-of-unlearned-gestures-in-children-with-probable-developmental-coordination-disorder
#11
Jess E Reynolds, Sophie Kerrigan, Catherine Elliott, Brendan S Lay, Melissa K Licari
It has been hypothesized that deficits in imitation, linked to abnormal functioning of the mirror neuron system (MNS), may contribute to the motor impairments associated with developmental coordination disorder (DCD). The authors aimed to examine imitation of complex novel postures and sequences of gestures in children with and without probable DCD (pDCD), using the postural praxis and sequencing praxis subtests of the Sensory Integration and Praxis Tests (Ayres, 1989 ). Participants were 29 boys with pDCD between 6...
October 11, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27719856/functional-auditory-disorders
#12
D M Baguley, T E Cope, D J McFerran
There are a number of auditory symptom syndromes that can develop without an organic basis. Some of these, such as nonorganic hearing loss, affect populations similar to those presenting with functional somatosensory and motor symptoms, while others, such as musical hallucination, affect populations with a significantly different demographic and require different treatment strategies. Many of these conditions owe their origin to measurably abnormal peripheral sensory pathology or brain network activity, but their pathological impact is often due, at least in part, to overamplification of the salience of these phenomena...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27708714/the-presence-of-two-rare-genomic-syndromes-1q21-deletion-and-xq28-duplication-segregating-independently-in-a-family-with-intellectual-disability
#13
Kyungsoo Ha, Yiping Shen, Tyler Graves, Cheol-Hee Kim, Hyung-Goo Kim
BACKGROUND: 1q21 microdeletion syndrome is a rare contiguous gene deletion disorder with de novo or autosomal dominant inheritance patterns and its phenotypic features include intellectual disability, distinctive facial dysmorphism, microcephaly, cardiac abnormalities, and cataracts. MECP2 duplication syndrome is an X-linked recessive neurodevelopmental disorder characterized by intellectual disability, global developmental delay, and other neurological complications including late-onset seizures...
2016: Molecular Cytogenetics
https://www.readbyqxmd.com/read/27703443/a-cross-sectional-survey-and-cross-sectional-clinical-trial-to-determine-the-prevalence-and-management-of-eye-movement-disorders-and-vestibular-dysfunction-in-post-stroke-patients-in-the-sub-acute-phase-protocol
#14
Andoret van Wyk, Carina A Eksteen, Piet J Becker, Barbara M Heinze
INTRODUCTION: Visual impairment, specifically eye movement disorders and vestibular dysfunction may have a negative influence on the functional recovery in post-stroke patients. This type of sensory dysfunction may further be associated with poor functional outcome in patients' post-stroke. METHODS: In phase 1, a cross-sectional survey (n = 100) will be conducted to determine the prevalence of eye movement disorders and vestibular dysfunction in patients who sustained a stroke...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27702713/future-food
#15
Mark L Wahlqvist
Food systems have changed markedly with human settlement and agriculture, industrialisation, trade, migration and now the digital age. Throughout these transitions, there has been a progressive population explosion and net ecosystem loss and degradation. Climate change now gathers pace, exacerbated by ecological dysfunction. Our health status has been challenged by a developing people-environment mismatch. We have regarded ecological conquest and innovative technology as solutions, but have not understood how ecologically dependent and integrated we are...
December 2016: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27687975/novel-roles-for-the-radial-spoke-head-protein-9-in-neural-and-neurosensory-cilia
#16
Irina Sedykh, Jessica J TeSlaa, Rose L Tatarsky, Abigail N Keller, Kimberly A Toops, Aparna Lakkaraju, Molly K Nyholm, Marc A Wolman, Yevgenya Grinblat
Cilia are cell surface organelles with key roles in a range of cellular processes, including generation of fluid flow by motile cilia. The axonemes of motile cilia and immotile kinocilia contain 9 peripheral microtubule doublets, a central microtubule pair, and 9 connecting radial spokes. Aberrant radial spoke components RSPH1, 3, 4a and 9 have been linked with primary ciliary dyskinesia (PCD), a disorder characterized by ciliary dysmotility; yet, radial spoke functions remain unclear. Here we show that zebrafish Rsph9 is expressed in cells bearing motile cilia and kinocilia, and localizes to both 9 + 2 and 9 + 0 ciliary axonemes...
September 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27685701/assessment-of-somatosensory-function-in-patients-with-idiopathic-dry-eye-symptoms
#17
Anat Galor, Roy C Levitt, Katherine T McManus, Jerry P Kalangara, Benjamin E Seiden, Jasmine J Park, Derek B Covington, Constantine D Sarantopoulos, Elizabeth R Felix
Importance: Somatosensory dysfunction likely underlies dry eye (DE) symptoms in many individuals yet remains an understudied component of the disease. Its presence has important diagnostic and therapeutic implications. Objective: To assess the integrity of nociceptive system processes in persons with DE and ocular pain using quantitative sensory testing (QST) techniques applied at a site remote from the eye. Design, Setting, and Participants: A cross-sectional study conducted at Miami Veterans Affairs Hospital included 118 individuals with a wide variety of DE symptoms and signs...
November 1, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27676932/experimental-feasibility-pilot-study-music-therapy-and-rehabilitation-care-following-a-stroke
#18
Marie Orentin, Victorine Quintaine, Alain Yelnik, Marylène Jousse, Leila Tlili, Anna Bernard, Maryse Guillemette
OBJECTIVE: Music therapy enhances awareness of sound perception and musical sensorial experience often highly impaired following a stroke, confirmed by music's neurosciences. The study aims to verify its reception and utility in a Physical Medicine and Rehabilitation (PMR) service with professional team and patients. MATERIAL/PATIENTS AND METHODS: Eleven hospitalized patients were included after stoke (without regular instrumental practice, speech disorder, severe hearing loss nor psychiatric history)...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27662370/brain-basis-of-childhood-speech-and-language-disorders-are-we-closer-to-clinically-meaningful-mri-markers
#19
Angela Morgan, Alexandra Bonthrone, Frédérique J Liégeois
PURPOSE OF REVIEW: Developmental speech and language disorders are common, seen in one in 20 preschool children, in the absence of frank neurological deficits or intellectual impairment. They are a key reason parents seek help from paediatricians. Complex neurogenetic and environmental contributions underpin the disorders, yet few specific causes are known. With the advent of quantitative brain imaging, a growing number of studies have investigated neural contributions. Here, we discuss current MRI approaches and recent findings (January 2014-June 2016) in the field...
September 22, 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27642285/rubberband-effect-in-temporal-control-of-mismatch-negativity
#20
Lingyan Wang, Xiaoxiong Lin, Bin Zhou, Ernst Pöppel, Yan Bao
Mismatch negativity (MMN) is a difference event-related potential (ERP) wave reflecting the brain's automatic reaction to deviant sensory stimuli, and it has been proven to be a useful tool in research on cognitive functions or clinical disorders. In most MMN studies, amplitude, peak latency, or the integral of the responses, in rare cases also the slopes of the responses, have been employed as parameters of the ERP responses for quantitative analyses. However, little is known about correlations between these parameters...
2016: Frontiers in Psychology
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