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https://www.readbyqxmd.com/read/28213292/improving-therapeutic-outcomes-in-autism-spectrum-disorders-enhancing-social-communication-and-sensory-processing-through-the-use-of-interactive-robots
#1
REVIEW
Felippe Sartorato, Leon Przybylowski, Diana K Sarko
For children with autism spectrum disorders (ASDs), social robots are increasingly utilized as therapeutic tools in order to enhance social skills and communication. Robots have been shown to generate a number of social and behavioral benefits in children with ASD including heightened engagement, increased attention, and decreased social anxiety. Although social robots appear to be effective social reinforcement tools in assistive therapies, the perceptual mechanism underlying these benefits remains unknown...
February 7, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28211449/translational-use-of-event-related-potentials-to-assess-circuit-integrity-in-asd
#2
REVIEW
Meera E Modi, Mustafa Sahin
Deficits in social cognition are the defining characteristic of autism spectrum disorder (ASD). Social cognition requires the integration of several neural circuits in a time-sensitive fashion, so impairments in social interactions could arise as a result of alterations in network connectivity. Electroencephalography (EEG) has revealed abnormalities in event related potentials (ERPs) evoked by auditory and visual sensory stimuli in humans with ASD, indicating disruption of neural connectivity. Similar abnormalities in sensory-evoked ERPs have been observed in animal models of ASD, suggesting that ERPs have the potential to provide a translational biomarker of the disorder...
February 17, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28186656/phenotype-and-genotype-specific-structural-alterations-in-spasmodic-dysphonia
#3
Serena Bianchi, Giovanni Battistella, Hailey Huddleston, Rebecca Scharf, Lazar Fleysher, Anna F Rumbach, Steven J Frucht, Andrew Blitzer, Laurie J Ozelius, Kristina Simonyan
BACKGROUND: Spasmodic dysphonia is a focal dystonia characterized by involuntary spasms in the laryngeal muscles that occur selectively during speaking. Although hereditary trends have been reported in up to 16% of patients, the causative etiology of spasmodic dysphonia is unclear, and the influences of various phenotypes and genotypes on disorder pathophysiology are poorly understood. In this study, we examined structural alterations in cortical gray matter and white matter integrity in relationship to different phenotypes and putative genotypes of spasmodic dysphonia to elucidate the structural component of its complex pathophysiology...
February 10, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28174609/disrupted-development-and-imbalanced-function-in-the-global-neuronal-workspace-a-positive-feedback-mechanism-for-the-emergence-of-asd-in-early-infancy
#4
REVIEW
Chris Fields, James F Glazebrook
Autism spectrum disorder (ASD) is increasingly being conceptualized as a spectrum disorder of connectome development. We review evidence suggesting that ASD is characterized by a positive feedback loop that amplifies small functional variations in early-developing sensory-processing pathways into structural and functional imbalances in the global neuronal workspace. Using vision as an example, we discuss how early functional variants in visual processing may be feedback-amplified to produce variant object categories and disrupted top-down expectations, atypically large expectation-to-perception mismatches, problems re-identifying individual people and objects, socially inappropriate, generally aversive emotional responses and disrupted sensory-motor coordination...
February 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/28174531/sensory-emotional-and-cognitive-contributions-to-anxiety-in-autism-spectrum-disorders
#5
REVIEW
Mikle South, Jacqui Rodgers
Severe symptoms of anxiety add substantial additional burden to many individuals diagnosed with Autism Spectrum Disorder (ASD). Improved understanding of specific factors that contribute to anxiety in ASD can aid research regarding the causes of autism and also provide targets for more effective intervention. This mini-review article focuses on emerging evidence for three concepts that appear to be related to each other and which also strongly predict anxiety in ASD samples. Atypical sensory function is included in the diagnostic criteria for ASD and is likely an important contributor to anxiety...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28160223/quantitative-sensory-testing-in-adults-with-autism-spectrum-disorders
#6
Odette Fründt, Wiebke Grashorn, Daniel Schöttle, Ina Peiker, Nicole David, Andreas K Engel, Katarina Forkmann, Nathalie Wrobel, Alexander Münchau, Ulrike Bingel
Altered sensory perception has been found in patients with autism spectrum disorders (ASD) and might be related to aberrant sensory perception thresholds. We used the well-established, standardized Quantitative sensory testing (QST) protocol of the German Research Network on Neuropathic Pain to investigate 13 somatosensory parameters including thermal and tactile detection and pain thresholds in 13 ASD adults and 13 matched healthy controls with normal IQ values. There were no group differences between somatosensory detection and pain thresholds...
February 3, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28153639/parkinson-s-disease-alters-multisensory-perception-insights-from-the-rubber-hand-illusion
#7
Catherine Ding, Colin J Palmer, Jakob Hohwy, George J Youssef, Bryan Paton, Naotsugu Tsuchiya, Julie C Stout, Dominic Thyagarajan
BACKGROUND: Manipulation of multisensory integration induces illusory perceptions of body ownership. Patients with Parkinson's disease (PD), a neurodegenerative disorder characterised by striatal dopamine deficiency, are prone to illusions and hallucinations and have sensory deficits. Dopaminergic treatment also aggravates hallucinations in PD. Whether multisensory integration in body ownership is altered by PD is unexplored. OBJECTIVE: To study the effect of dopamine neurotransmission on illusory perceptions of body ownership...
January 31, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28130002/neurological-soft-signs-in-first-episode-schizophrenia-state-and-trait-related-relationships-to-psychopathology-cognition-and-antipsychotic-medication-effects
#8
Robin Emsley, Bonginkosi Chiliza, Laila Asmal, Sanja Kilian, M Riaan Olivier, Lebogang Phahladira, Akinsola Ojagbemi, Freda Scheffler, Jonathan Carr, Martin Kidd, Paola Dazzan
BACKGROUND: Neurological soft signs (NSS) are proposed to represent both state- and trait-related features of schizophrenia. METHOD: We assessed the course of NSS with the Neurological Evaluation Scale (NES) over 12months of standardised treatment in 126 patients with first-episode schizophrenia, schizophreniform or schizoaffective disorder, and evaluated their state- and trait-related associations with psychopathology, functionality, cognition and antipsychotic treatment...
January 24, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28113638/haptic-feedback-manipulation-during-botulinum-toxin-injection-therapy-for-focal-hand-dystonia-patients-a-possible-new-assistive-strategy
#9
Seyed 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
https://www.readbyqxmd.com/read/28113631/the-role-of-audio-visual-feedback-in-a-thought-based-control-of-a-humanoid-robot-a-bci-study-in-healthy-and-spinal-cord-injured-people
#10
Emmanuele Tidoni, Pierre Gergondet, Gabriele Fusco, Abderrahmane Kheddar, Salvatore Aglioti
The efficient control of our body and successful interaction with the environment are possible through the integration of multisensory information. Brain-computer interface (BCI) may allow people with sensorimotor disorders to actively interact in the world. In this study, visual information was paired with auditory feedback to improve the BCI control of a humanoid surrogate. Healthy and spinal cord injured (SCI) people were asked to embody a humanoid robot and complete a pick-and-place task by means of a visual evoked potentials BCI system...
August 3, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28101529/cortico-cortical-connections-of-primary-sensory-areas-and-associated-symptoms-in-migraine
#11
Duncan J Hodkinson, Rosanna Veggeberg, Aaron Kucyi, Koene R A van Dijk, Sophie L Wilcox, Steven J Scrivani, Rami Burstein, Lino Becerra, David Borsook
Migraine is a recurring, episodic neurological disorder characterized by headache, nausea, vomiting, and sensory disturbances. These events are thought to arise from the activation and sensitization of neurons along the trigemino-vascular pathway. From animal studies, it is known that thalamocortical projections play an important role in the transmission of nociceptive signals from the meninges to the cortex. However, little is currently known about the potential involvement of cortico-cortical feedback projections from higher-order multisensory areas and/or feedforward projections from principle primary sensory areas or subcortical structures...
November 2016: ENeuro
https://www.readbyqxmd.com/read/28093554/tumour-necrosis-factor-mediated-homeostatic-synaptic-plasticity-in-behavioural-models-testing-a-role-in-maternal-immune-activation
#12
Sarah C Konefal, David Stellwagen
The proinflammatory cytokine tumour necrosis factor-alpha (TNFα) has long been characterized for its role in the innate immune system, but more recently has been found to have a distinct role in the nervous system that does not overlap with other proinflammatory cytokines. Through regulation of neuronal glutamate and GABA receptor trafficking, TNF mediates a homeostatic form of synaptic plasticity, but plays no direct role in Hebbian forms of plasticity. As yet, there is no evidence to suggest that this adaptive plasticity plays a significant role in normal development, but it does maintain neuronal circuit function in the face of several types of disruption...
March 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28093358/mapping-the-functional-connectome-traits-of-levels-of-consciousness
#13
Enrico Amico, Daniele Marinazzo, Carol Di Perri, Lizette Heine, Jitka Annen, Charlotte Martial, Mario Dzemidzic, Murielle Kirsch, Vincent Bonhomme, Steven Laureys, Joaquín Goñi
Examining task-free functional connectivity (FC) in the human brain offers insights on how spontaneous integration and segregation of information relate to human cognition, and how this organization may be altered in different conditions, and neurological disorders. This is particularly relevant for patients in disorders of consciousness (DOC) following severe acquired brain damage and coma, one of the most devastating conditions in modern medical care. We present a novel data-driven methodology, connICA, which implements Independent Component Analysis (ICA) for the extraction of robust independent FC patterns (FC-traits) from a set of individual functional connectomes, without imposing any a priori data stratification into groups...
January 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28091795/mood-spectrum-disorders-and-perception-of-pain
#14
Antonella Ciaramella
: Evaluation of pain perception in chronic pain patients with a concomitant mood-spectrum disorder. DESIGN: The observational retrospective study is based on patient data collected in psychosomatic consultations held at the Gift Institute for Integrative Medicine in Pisa, Italy, from 2002 to 2014. Evoked pain stimulus threshold and tolerance were evaluated using the cold pressor test. Clinical pain intensity and Sensorial, Affective, and Evaluative dimensions were assessed using the Italian Pain Questionnaire, and Anxiety and Depressive symptoms using the Hospital Anxiety Depression Scale...
January 14, 2017: Psychiatric Quarterly
https://www.readbyqxmd.com/read/28080969/an-active-inference-theory-of-allostasis-and-interoception-in-depression
#15
Lisa Feldman Barrett, Karen S Quigley, Paul Hamilton
In this paper, we integrate recent theoretical and empirical developments in predictive coding and active inference accounts of interoception (including the Embodied Predictive Interoception Coding model) with working hypotheses from the theory of constructed emotion to propose a biologically plausible unified theory of the mind that places metabolism and energy regulation (i.e. allostasis), as well as the sensory consequences of that regulation (i.e. interoception), at its core. We then consider the implications of this approach for understanding depression...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28078966/visual-and-cross-modal-cues-increase-the-identification-of-overlapping-visual-stimuli-in-balint-s-syndrome
#16
Daniela D'Imperio, Michele Scandola, Valeria Gobbetto, Cristina Bulgarelli, Matteo Salgarello, Renato Avesani, Valentina Moro
INTRODUCTION: Cross-modal interactions improve the processing of external stimuli, particularly when an isolated sensory modality is impaired. When information from different modalities is integrated, object recognition is facilitated probably as a result of bottom-up and top-down processes. The aim of this study was to investigate the potential effects of cross-modal stimulation in a case of simultanagnosia. METHOD: We report a detailed analysis of clinical symptoms and an (18)F-fluorodeoxyglucose (FDG) brain positron emission tomography/computed tomography (PET/CT) study of a patient affected by Balint's syndrome, a rare and invasive visual-spatial disorder following bilateral parieto-occipital lesions...
January 12, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28074464/investigation-of-hand-function-among-children-diagnosed-with-autism-spectrum-disorder-with-upper-extremity-trauma-history
#17
Meral Huri, Sedef Şahin, Hülya Kayıhan
BACKGROUND: The present study was designed to compare hand function in autistic children with history of upper extremity trauma with that of autistic children those who do not have history of trauma. METHODS: The study group included total of 65 children diagnosed with autism spectrum disorder (ASD) and was divided into 2 groups: children with trauma history (Group I) and control group (Group II) (Group I: n=28; Group II: n=37). Hand function was evaluated with 9-Hole Peg Test and Jebsen Hand Function Test...
November 2016: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28045463/neurogenetics-of-developmental-dyslexia-from-genes-to-behavior-through-brain-neuroimaging-and-cognitive-and-sensorial-mechanisms
#18
REVIEW
S Mascheretti, A De Luca, V Trezzi, D Peruzzo, A Nordio, C Marino, F Arrigoni
Developmental dyslexia (DD) is a complex neurodevelopmental deficit characterized by impaired reading acquisition, in spite of adequate neurological and sensorial conditions, educational opportunities and normal intelligence. Despite the successful characterization of DD-susceptibility genes, we are far from understanding the molecular etiological pathways underlying the development of reading (dis)ability. By focusing mainly on clinical phenotypes, the molecular genetics approach has yielded mixed results...
January 3, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28039782/reduced-sensitivity-to-social-priors-during-action-prediction-in-adults-with-autism-spectrum-disorders
#19
Valerian Chambon, Chlöé Farrer, Elisabeth Pacherie, Pierre O Jacquet, Marion Leboyer, Tiziana Zalla
An extensive amount of evidence has documented a diminished ability to predict and understand other people's action in individuals with autism spectrum disorders (ASD). Recently, two theoretical accounts, the "Hypo-priors" and the "Aberrant precision" hypotheses, have suggested that attenuated Bayesian priors or an imbalance of the precision ascribed to sensory evidence relative to prior expectations may be responsible for the atypical perceptual experience and difficulties with action understanding in ASD...
March 2017: Cognition
https://www.readbyqxmd.com/read/28028198/sex-dependent-regulation-of-aromatase-mediated-synaptic-plasticity-in-the-basolateral-amygdala
#20
Roland A Bender, Lepu Zhou, Ricardo Vierk, Nicola Brandt, Alexander Keller, Christine E Gee, Michael K E Schäfer, Gabriele M Rune
The basolateral amygdala (BLA) integrates sensory input from cortical and subcortical regions, a function that requires marked synaptic plasticity. Here we provide evidence that cytochrome P450 aromatase (AROM), the enzyme converting testosterone to 17β-estradiol (E2), contributes to the regulation of this plasticity in a sex-specific manner. We show that AROM is expressed in the BLA, particularly in the basolateral nucleus (BL), in male and female rodents. Systemic administration of the AROM inhibitor letrozole reduced spine synapse density in the BL of adult female mice but not in the BL of male mice...
February 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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