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Autism Spectrum Disorders (ASD) - Searching for the Biological Basis for Behavioral Symptoms and New Therapeutic Targets

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889451128 Year: Pages: 178 DOI: 10.3389/978-2-88945-112-8 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2017-07-06 13:27:36
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Autism Spectrum Disorder (ASD) is currently diagnosed based on a series of behavioral tests. The challenge for researchers is to try to uncover the biological basis for these typical behaviors in order to improve diagnosis and identify potential targets for treatment. A multidisciplinary approach is necessary in order to move forward. This includes analysis of the current animal models for ASD and their suitability, reviewing immunological, immunogenetic and epigenetic research, reassessing clinical diagnostic tools, and surveying radiological, pathological, and serological records for clues. This volume includes research from some of the leading researchers on ASD. We are hopeful that it will stimulate further dialogue and research in this challenging field.

What Determines Social Behavior? Investigating the Role of Emotions, Self-Centered Motives, and Social Norms

Authors: --- --- --- --- et al.
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889199648 Year: Pages: 403 DOI: 10.3389/978-2-88919-964-8 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2016-01-19 14:05:46
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Human behavior and decision making is subject to social and motivational influences such as emotions, norms and self/other regarding preferences. The identification of the neural and psychological mechanisms underlying these factors is a central issue in psychology, behavioral economics and social neuroscience, with important clinical, social, and even political implications. However, despite a continuously growing interest from the scientific community, the processes underlying these factors, as well as their ontogenetic and phylogenetic development, have so far remained elusive. In this Research Topic we collect articles that provide challenging insights and stimulate a fruitful controversy on the question of “what determines social behavior”. Indeed, over the last decades, research has shown that introducing a social context to otherwise abstract tasks has diverse effects on social behavior. On the one hand, it may induce individuals to act irrationally, for instance to refuse money, but on the other hand it improves individuals’ reasoning, in that formerly difficult abstract problems can be easily solved. These lines of research led to distinct (although not necessarily mutually exclusive) models for socially-driven behavioral changes. For instance, a popular theoretical framework interprets human behavior as a result of a conflict between cognition and emotion, with the cognitive system promoting self-interested choices, and the emotional system (triggered by the social context) operating against them. Other theories favor social norms and deontic heuristics in biasing human reasoning and encouraging choices that are sometimes in conflict with one’s interest. Few studies attempted to disentangle between these (as well as other) models. As a consequence, although insightful results arise from specific domains/tasks, a comprehensive theoretical framework is still missing. Furthermore, studies employing neuroimaging techniques have begun to shed some light on the neural substrates involved in social behavior, implicating consistently (although not exclusively) portions of the limbic system, the insular and the prefrontal cortex. In this context, a challenge for present research lies not only in further mapping the brain structures implicated in social behavior, or in describing in detail the functional interaction between these structures, but in showing how the implicated networks relate to different theoretical models. This is Research Topic hosted by members of the Swiss National Center of Competence in Research “Affective Sciences – Emotions in Individual Behaviour and Social Processes”. We collected contributions from the international community which extended the current knowledge about the psychological and neural structures underlying social behavior and decision making. In particular, we encouraged submissions from investigators arising from different domains (psychology, behavioral economics, affective sciences, etc.) implementing different techniques (behavior, electrophysiology, neuroimaging, brain stimulations) on different populations (neurotypical adults, children, brain damaged or psychiatric patients, etc.). Animal studies are also included, as the data reported are of high comparative value. Finally, we also welcomed submissions of meta-analytical articles, mini-reviews and perspective papers which offer provocative and insightful interpretations of the recent literature in the field.

Updates in Pediatric Sleep and Child Psychiatry

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ISBN: 9783038979388 / 9783038979395 Year: Pages: 160 DOI: 10.3390/books978-3-03897-939-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Pediatrics
Added to DOAB on : 2019-06-26 08:44:06
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Sleep-related symptoms are common in the majority of psychiatric diagnostic categories. The overlap of sleep and psychiatric disorders have been demonstrated in numerous studies. The understanding of sleep and child psychiatry has progressively evolved in the last decade and newer insights have developed regarding the complex interaction between sleep and psychopathology. This collection of articles represents updates on sleep and psychiatric disorders with medical and neurological co-morbidities in children and adolescents.

Towards Mechanism-based Treatments for Fragile X Syndrome

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ISBN: 9783039215058 / 9783039215065 Year: Pages: 250 DOI: 10.3390/books978-3-03921-506-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-12-09 11:49:15
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It has been more than 25 years since the identification of the FMR1 gene and the demonstration of the causative role of CGG-repeat expansion in the disease pathology of fragile X syndrome (FXS), but the underlying mechanisms involved in the expansion mutation and the resulting gene silencing still remain elusive. Our understanding of the pathways impacted by the loss of FMRP function has grown tremendously, and has opened new avenues for targeted treatments for FXS. However, the failure of recent clinical trials that were based on successful preclinical studies using the Fmr1 knockout mouse model has forced the scientific community to revisit clinical trial design and identify objective outcome measures. There has also been a renewed interest in restoring FMR1 gene expression as a possible treatment approach for FXS. This special issue of Brain Sciences highlights the progress that has been made towards understanding the disease mechanisms and how this has informed the development of treatment strategies that are being explored for FXS.

Keywords

fragile X syndrome --- clinical trials --- targeted treatments --- drug development --- fragile X syndrome --- clinical trials --- treatment development --- best practices --- fragile X syndrome --- newborn screening --- early identification --- fragile X syndrome --- X chromosome --- females --- FMR1 --- anxiety --- avoidance --- cognition --- behavior --- brain --- Fragile X --- FMRP --- Fxr2 --- Fmr1 --- fragile X syndrome --- executive function --- working memory --- set-shifting --- cognitive flexibility --- inhibitory control --- attention --- planning --- processing speed --- Fragile X syndrome 1 --- Fragile X-associated Tremor/Ataxia Syndrome 2 --- CRISPR 3 --- Trinucleotide Repeat 4 --- Gene editing --- fragile X syndrome --- FMR1 gene --- voice of the person --- voice of the patient --- characteristics that have the greatest impact --- developmental disorders --- fragile X syndrome --- language development --- automated vocal analysis --- adeno-associated virus --- autism spectrum disorders --- cerebral spinal fluid --- fragile X mental retardation protein --- neurodevelopmental disorders --- viral vector --- fragile X syndrome --- gene reactivation --- RNA:DNA hybrid --- FMRP --- histone methylation --- DNA methylation --- FMR1 --- PRC2 --- fragile X syndrome --- unstable repeat diseases --- epigenetic gene silencing --- DNA methylation --- repeat instability --- pluripotent stem cells --- CGG Repeat Expansion Disease --- DNA instability --- expansion --- contraction --- mismatch repair (MMR) --- base excision repair (BER) --- transcription coupled repair (TCR) --- double-strand break repair (DSBR) --- Non-homologous end-joining (NHEJ) --- mosaicism --- protein synthesis --- Fragile X Syndrome --- biomarker --- iPSC --- fibroblast --- lymphoblast --- fragile X syndrome --- molecular biomarkers --- FMR1 --- FMRP --- intellectual disability --- Fmr1 KO mouse --- ASD --- n/a

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