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Brain Connectivity in Autism

2014-09-23 Autism
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Release : 2014-09-23
Genre : Autism
Kind : eBook
Book Rating : 822/5 ( reviews)

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Book Synopsis Brain Connectivity in Autism by : Rajesh K. Kana

Download or read book Brain Connectivity in Autism written by Rajesh K. Kana. This book was released on 2014-09-23. Available in PDF, EPUB and Kindle. Book excerpt: The brain's ability to process information crucially relies on connectivity. Understanding how the brain processes complex information and how such abilities are disrupted in individuals with neuropsychological disorders will require an improved understanding of brain connectivity. Autism is an intriguingly complex neurodevelopmental disorder with multidimensional symptoms and cognitive characteristics. A biological origin for autism spectrum disorders (ASD) had been proposed even in the earliest published accounts (Kanner, 1943; Asperger, 1944). Despite decades of research, a focal neurobiological marker for autism has been elusive. Nevertheless, disruptions in interregional and functional and anatomical connectivity have been a hallmark of neural functioning in ASD. Theoretical accounts of connectivity perceive ASD as a cognitive and neurobiological disorder associated with altered functioning of integrative circuitry. Neuroimaging studies have reported disruptions in functional connectivity (synchronization of activated brain areas) during cognitive tasks and during task-free resting states. While these insights are valuable, they do not address the time-lagged causality and directionality of such correlations. Despite the general promise of the connectivity account of ASD, inconsistencies and methodological differences among studies call for more thorough investigations. A comprehensive neurological account of ASD should incorporate functional, effective, and anatomical connectivity measures and test the diagnostic utility of such measures. In addition, questions pertaining to how cognitive and behavioral intervention can target connection abnormalities in ASD should be addressed. This research topic of the Frontiers in Human Neuroscience addresses “Brain Connectivity in Autism” primarily from cognitive neuroscience and neuroimaging perspectives.

Brain Connectivity in Autism Spectrum Disorder

2012 Autism
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Release : 2012
Genre : Autism
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Brain Connectivity in Autism Spectrum Disorder by : Marco Catani

Download or read book Brain Connectivity in Autism Spectrum Disorder written by Marco Catani. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt: In recent years Autism Spectrum Disorders (ASD) have been considered as resulting from altered connectivity between regions, which may explain characteristic manifestations in socio-emotional function, communication and repetitive behaviour observed clinically. This thesis aims to provide evidence for altered anatomy of networks in ASD. The first step consisted in the creation of a diffusion tensor tractography atlas of the normal human brain derived from 40 healthy adults. The atlas was then used to localise the findings from a meta-analysis of published voxel-based morphometry studies investigating white matter abnormalities in ASD. This analysis showed that patients with ASD display abnormalities in long white matter association tracts, such as the arcuate and uncinate fasciculus, known to be important for language and social cognition. A second step consisted in the tractography analysis of limbic and cerebellar tracts in a small pilot study. Our findings confirmed differences in the the uncinate tract in ASD and in addition we found differences in the cingulum and major intracecebellar and cerebellar output tract. Finally, Tract-Based Spatial Statistics (TBSS) and tractography analysis of a multi-centre, case-control study was performed on 61 individuals with ASD and 61 controls. Differences in the frontal connections of the arcuate fasciculus, uncinate fasciculus, cingulum and corpus callosum were found. Tract specific measurements in the arcuate and uncinate were associated with a history of delayed echolalia and impaired used efface expression in childhood, respectively. In conclusion these series of studies show that ASD are associated with specific structural abnormalities of the limbic, language and interhemispheric white matter fibres. Differences in white matter anatomy were localised in major connections to the frontal lobe and associated with specific autistic features and traits in chilldhood.

The Autistic Brain

2013 Family & Relationships
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Release : 2013
Genre : Family & Relationships
Kind : eBook
Book Rating : 458/5 ( reviews)

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Book Synopsis The Autistic Brain by : Temple Grandin

Download or read book The Autistic Brain written by Temple Grandin. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt: Weaving her own experience with remarkable new discoveries, Grandin introduces the neuroimaging advances and genetic research that link brain science to behavior, even sharing her own brain scans from numerous studies. Readers meet the scientists and self-advocates who are introducing innovative theories of what causes, how it is diagnosed, and how best to treat autism.

Bioinformatics and Biomedical Engineering

2018-04-19 Computers
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Release : 2018-04-19
Genre : Computers
Kind : eBook
Book Rating : 233/5 ( reviews)

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Book Synopsis Bioinformatics and Biomedical Engineering by : Ignacio Rojas

Download or read book Bioinformatics and Biomedical Engineering written by Ignacio Rojas. This book was released on 2018-04-19. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set LNBI 10813 and LNBI 10814 constitutes the proceedings of the 6th International Work-Conference on Bioinformatics and Biomedical Engineering, IWBBIO 2018, held in Granada, Spain, in April 2018.The 88 regular papers presented were carefully reviewed and selected from 273 submissions. The scope of the conference spans the following areas: bioinformatics for healthcare and diseases; bioinformatics tools to integrate omics dataset and address biological question; challenges and advances in measurement and self-parametrization of complex biological systems; computational genomics; computational proteomics; computational systems for modelling biological processes; drug delivery system design aided by mathematical modelling and experiments; generation, management and biological insights from big data; high-throughput bioinformatic tools for medical genomics; next generation sequencing and sequence analysis; interpretable models in biomedicine and bioinformatics; little-big data. Reducing the complexity and facing uncertainty of highly underdetermined phenotype prediction problems; biomedical engineering; biomedical image analysis; biomedical signal analysis; challenges in smart and wearable sensor design for mobile health; and healthcare and diseases.

Cognitive Plasticity in Neurologic Disorders

2014-12-02 Medical
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Release : 2014-12-02
Genre : Medical
Kind : eBook
Book Rating : 242/5 ( reviews)

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Book Synopsis Cognitive Plasticity in Neurologic Disorders by : Joseph I. Tracy

Download or read book Cognitive Plasticity in Neurologic Disorders written by Joseph I. Tracy. This book was released on 2014-12-02. Available in PDF, EPUB and Kindle. Book excerpt: This volume makes clear that the cognitive and behavioural symptoms of neurologic disorders and syndromes are dynamic and changing. Each chapter describes the neuroplastic processes at work in a particular condition, giving rise to these ongoing cognitive changes.

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