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Epigenetic pathways in PTSD: How traumatic experiences leave their signature on the genome

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194582 Year: Pages: 158 DOI: 10.3389/978-2-88919-458-2 Language: English
Publisher: Frontiers Media SA
Subject: Psychiatry --- Medicine (General)
Added to DOAB on : 2016-02-05 17:24:33
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Abstract

This research topic focuses on epigenetic components of PTSD. Epigenetic mechanisms are a class of molecular mechanisms by which environmental influences, including stress, can interact with the genome to have long-term consequences for brain plasticity and behavior. Articles herein include empirical reports and reviews that link stress and trauma with epigenetic alterations in humans and animal models of early- or later-life stress. Themes present throughout the collection include: DNA methylation is a useful biomarker of stress and treatment outcome in humans; epigenetic programming of stress-sensitive physiological systems early in development confers an enhanced risk on disease development upon re-exposure to trauma or stress; and, long-lived fear memories are associated with epigenetic alterations in fear memory and extinction brain circuitry.

Keywords

DNA Methylation --- Histones --- miRNA --- stress --- Fear --- PTSD

Neural processing of emotion in multimodal settings

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194148 Year: Pages: 274 DOI: 10.3389/978-2-88919-414-8 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2015-12-10 11:59:06
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Our everyday life is characterized by a multitude of emotionally relevant cues that we perceive and communicate via various sensory channels. This does not only encompass the obvious cases of auditory and visual modalities, but also olfactory, gustatory, and even tactile stimuli. Any kind of emotional situation in a natural setting is usually a multimodal experience: A friend welcomes us with warm words, a smile, and a happy voice; the sight of our favourite food is accompanied by a seductive smell and a delicious taste; the thrill of watching an exciting movie scene is intensified by a gripping soundtrack. In these situations, the signals from various senses do not stand on their own; they interact and create a unified emotional experience. Recent neuroscientific research has begun to accommodate this inherent multimodality of emotions in natural situations by studying the interaction of affectively relevant information from more than one sensory channel. Fascinating new aspects emerge concerning the neurobiology of emotion processing, and there is evidence that integrating emotional cues from various sources invokes brain processes that go beyond the well-known patterns observed during unimodal stimulation. The aim of this volume is to present novel and interesting studies dealing with the multimodality of emotions and their neural processing. This includes findings from novel paradigms beyond the classical stimulus-response pattern, fascinating new insights into the interaction of the chemical senses, new analysis methods, comprehensive reviews of selected topics, multimodality in social interactions, and clinical perspectives. Taken together, the studies of this volume thus help us to better understand the interplay of various senses in our daily emotional experiences.

Locating Hell in Islamic Traditions

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Book Series: Islamic History and Civilization ISBN: 9789004301368 9789004301214 Year: Volume: 119 Pages: 375 pp., 11 illus., DOI: 10.1163/9789004301368 Language: English
Publisher: Brill Grant: FP7 Ideas: European Research Council - 263308
Subject: Religion
Added to DOAB on : 2016-02-05 09:19:18
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Islam is often seen as a religious tradition in which hell does not play a particularly prominent role. This volume challenges this hackneyed view. Locating Hell in Islamic Traditions is the first book-length analytic study of the Muslim hell. It maps out a broad spectrum of Islamic attitudes toward hell, from the Quranic vision(s) of hell to the pious cultivation of the fear of the afterlife, theological speculations, metaphorical and psychological understandings, and the modern transformations of hell. Contributors: Frederick Colby, Daniel de Smet, Christiane Gruber, Jon Hoover, Mohammad Hassan Khalil, Christian Lange, Christopher Melchert, Simon O’Meara, Samuela Pagani, Tommaso Tesei, Roberto Tottoli, Wim Raven, and Richard van Leeuwen.

Keywords

islam --- damnation --- jahannam --- afterlife --- eschatology --- jinn --- asceticism --- quran --- paradise --- melek --- salvation --- fear --- angels --- death --- religion --- al-nār

Emotional Modulation of the Synapse

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889196067 Year: Pages: 135 DOI: 10.3389/978-2-88919-606-7 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2016-08-16 10:34:25
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Highly emotional events tend to be well remembered. The adaptive value in this is clear – those events that have a bearing on survival should be stored for future use as long-term memories whereas memories of inconsequential events would not as likely contribute to future survival. Enduring changes in the structure and function of synapses, neural circuitry, and ultimately behavior, can be modulated by highly aversive or rewarding experiences. In the last decade, the convergence of cellular, molecular, and systems neuroscience has produced new insights into the biological mechanisms that determine whether a memory will be stored for the long-term or lost forever. This Research Topic brings together leading experts, who work at multiple levels of analysis, to reveal recent discoveries and concepts regarding the synaptic mechanisms of consolidation and extinction of emotionally arousing memories.

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