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Sensory integration disorder

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
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
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
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
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
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
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...
September 29, 2016: JAMA Ophthalmology
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
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
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
Søren T Christensen, Stine K Morthorst, Johanne B Mogensen, Lotte B Pedersen
Since the beginning of the millennium, research in primary cilia has revolutionized our way of understanding how cells integrate and organize diverse signaling pathways during vertebrate development and in tissue homeostasis. Primary cilia are unique sensory organelles that detect changes in their extracellular environment and integrate and transmit signaling information to the cell to regulate various cellular, developmental, and physiological processes. Many different signaling pathways have now been shown to rely on primary cilia to function properly, and mutations that lead to ciliary dysfunction are at the root of a pleiotropic group of diseases and syndromic disorders called ciliopathies...
September 16, 2016: Cold Spring Harbor Perspectives in Biology
Bianca A Silva, Cornelius T Gross, Johannes Gräff
How fear is represented in the brain has generated a lot of research attention, not only because fear increases the chances for survival when appropriately expressed but also because it can lead to anxiety and stress-related disorders when inadequately processed. In this review, we summarize recent progress in the understanding of the neural circuits processing innate fear in rodents. We propose that these circuits are contained within three main functional units in the brain: a detection unit, responsible for gathering sensory information signaling the presence of a threat; an integration unit, responsible for incorporating the various sensory information and recruiting downstream effectors; and an output unit, in charge of initiating appropriate bodily and behavioral responses to the threatful stimulus...
October 2016: Learning & Memory
Mariella Pazzaglia, Marta Zantedeschi
Knowledge of the body is filtered by perceptual information, recalibrated through predominantly innate stored information, and neurally mediated by direct sensory motor information. Despite multiple sources, the immediate prediction, construction, and evaluation of one's body are distorted. The origins of such distortions are unclear. In this review, we consider three possible sources of awareness that inform body distortion. First, the precision in the body metric may be based on the sight and positioning sense of a particular body segment...
2016: Neural Plasticity
Martin Debbané, George Salaminios, Patrick Luyten, Deborah Badoud, Marco Armando, Alessandra Solida Tozzi, Peter Fonagy, Benjamin K Brent
In this review article, we outline the evidence linking attachment adversity to psychosis, from the premorbid stages of the disorder to its clinical forms. To better understand the neurobiological mechanisms through which insecure attachment may contribute to psychosis, we identify at least five neurobiological pathways linking attachment to risk for developing psychosis. Besides its well documented influence on the hypothalamic-pituary-adrenal (HPA) axis, insecure attachment may also contribute to neurodevelopmental risk through the dopaminergic and oxytonergic systems, as well as bear influence on neuroinflammation and oxidative stress responses...
2016: Frontiers in Human Neuroscience
Estate M Sokhadze, Manuel F Casanova, Allan Tasman, Sally Brockett
Autism is a pervasive developmental disorder of childhood characterized by deficits in social interaction, language, and stereotyped behaviors along with a restricted range of interests. It is further marked by an inability to perceive and respond to social and emotional signals in a typical manner. This might due to the functional disconnectivity of networks important for specific aspects of social cognition and behavioral control resulting in deficits of sensory information integration. According to several recent theories sensory processing and integration abnormalities may play an important role in impairments of perception, cognition, and behavior in individuals with autism...
August 29, 2016: Applied Psychophysiology and Biofeedback
Paolo Barone, Gabriella Santangelo, Marianna Amboni, Maria Teresa Pellecchia, Carmine Vitale
Pisa syndrome is defined as a reversible lateral bending of the trunk with a tendency to lean to one side. It is a frequent and often disabling complication of Parkinson's disease, and has also been described in several atypical forms of parkinsonism and in neurodegenerative and psychiatric disorders after drug exposure and surgical procedures. Although no consistent diagnostic criteria for Pisa syndrome are available, most investigations have adopted an arbitrary cutoff of at least 10° of lateral flexion for the diagnosis of the syndrome...
September 2016: Lancet Neurology
Chetali Vijay Dhuri, Shubhangi R Parkar
OBJECTIVE: Modern research on obsessive-compulsive disorder (OCD) indicates that the primary cause of OCD, which was earlier explained only on basis of psychoanalytical theories, is biological. Our study attempts to investigate the neurobiological signs in form of soft neurological signs and cognitive function in OCD. METHODS: A cross sectional study was conducted at psychiatric facility of Seth G.S. Medical College and KEM Hospital. MATERIALS AND METHOD: 50 OCD patients and age- and education-matched controls were selected for the study...
July 2016: Indian Journal of Psychological Medicine
S Farokh Atashzar, Mahya Shahbazi, Christopher Ward, Olivia Samotus, Mehdi Delrobaei, Fariborz Rahimi, Jack Lee, Mallory Jackman, Mandar Jog, Rajni Patel
Abnormality of sensorimotor integration in the basal ganglia and cortex has been reported in the literature for patients with task-specific focal hand dystonia (FHD). In this study, we investigate the effect of manipulation of kinesthetic input in people living with writer's cramp disorder (a major form of FHD). For this purpose, severity of dystonia is studied for 11 participants while the symptoms of 7 participants have been tracked during 5 sessions of assessment and Botulinum toxin injection (BoNT-A) therapy (one of the current suggested therapies for dystonia)...
August 19, 2016: IEEE Transactions on Haptics
Mohammad-Reza A Dehaqani, Mehdi Alizadeh Zarei, Abdol-Hossein Vahabie, Hossein Esteky
One of the characteristics of autism spectrum disorder (ASD) is atypical sensory processing and perceptual integration. Here, we used an object naming task to test the significance of deletion of vertices versus extended contours (edges) in naming fragmented line drawings of natural objects in typically developing and ASD children. The basic components of a fragmented image in perceptual closure need to be integrated to make a coherent visual perception. When vertices were missing and only edges were visible, typically developing and ASD subjects performed similarly...
August 1, 2016: Journal of Vision
Christian Beste, Jennifer Tübing, Helen Seeliger, Tobias Bäumer, Valerie Brandt, Ann-Kathrin Stock, Alexander Münchau
Gilles de la Tourette syndrome (GTS) is a common multifaceted neuropsychiatric disorder. Research in GTS has traditionally focussed on mechanisms underlying changes in motor processes in these patients. There is, however, growing interest in GTS related sensory phenomena. According to the Theory of Event-coding (TEC), sensory stimuli do not only serve representational functions but also action-related functions. In the current study, we use the TEC framework to examine whether the way perceptual features are processed is altered in GTS...
October 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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