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Clinical Neuroscience

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https://www.readbyqxmd.com/read/28080966/active-interoceptive-inference-and-the-emotional-brain
#1
REVIEW
Anil K Seth, Karl J Friston
We review a recent shift in conceptions of interoception and its relationship to hierarchical inference in the brain. The notion of interoceptive inference means that bodily states are regulated by autonomic reflexes that are enslaved by descending predictions from deep generative models of our internal and external milieu. This re-conceptualization illuminates several issues in cognitive and clinical neuroscience with implications for experiences of selfhood and emotion. We first contextualize interoception in terms of active (Bayesian) inference in the brain, highlighting its enactivist (embodied) aspects...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28080961/interoception-beyond-homeostasis-affect-cognition-and-mental-health
#2
Manos Tsakiris, Hugo Critchley
Interoception refers to the sensing of the internal state of one's body. Interoception is distinct from the processing of sensory information concerning external (non-self) stimuli (e.g. vision, hearing, touch and smell) and is the afferent axis to internal (autonomic and hormonal) physiological control. However, the impact of interoception extends beyond homeostatic/allostatic reflexes: it is proposed to be fundamental to motivation, emotion (affective feelings and behaviours), social cognition and self-awareness...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28074926/disrupted-global-metastability-and-static-and-dynamic-brain-connectivity-across-individuals-in-the-alzheimer-s-disease-continuum
#3
Aldo Córdova-Palomera, Tobias Kaufmann, Karin Persson, Dag Alnæs, Nhat Trung Doan, Torgeir Moberget, Martina Jonette Lund, Maria Lage Barca, Andreas Engvig, Anne Brækhus, Knut Engedal, Ole A Andreassen, Geir Selbæk, Lars T Westlye
As findings on the neuropathological and behavioral components of Alzheimer's disease (AD) continue to accrue, converging evidence suggests that macroscale brain functional disruptions may mediate their association. Recent developments on theoretical neuroscience indicate that instantaneous patterns of brain connectivity and metastability may be a key mechanism in neural communication underlying cognitive performance. However, the potential significance of these patterns across the AD spectrum remains virtually unexplored...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073112/space-and-objects-on-the-phenomenology-and-cognitive-neuroscience-of-anomalous-perception-in-schizophrenia-ancillary-article-to-eawe-domain-1
#4
Steven M Silverstein, Docia Demmin, Borut Škodlar
BACKGROUND/AIMS: Perception of space and objects is a traditional focus within phenomenology, and disturbances in these aspects of perception among people with schizophrenia have long been discussed within phenomenological psychiatry. Despite this, there has been little empirical work on the causes and effects of most of these perceptual alterations in people with schizophrenia. Progress towards this goal can be accelerated by the use of EAWE (Examination of Anomalous World Experience), an interview-based tool to elicit, categorize, and quantify abnormal perceptual and other experiential phenomena...
January 11, 2017: Psychopathology
https://www.readbyqxmd.com/read/28072382/modeling-white-matter-microstructure
#5
REVIEW
T Duval, N Stikov, J Cohen-Adad
Quantitative magnetic resonance imaging can be combined with advanced biophysical models to measure microstructural features of white matter. Non-invasive microstructural imaging has the potential to revolutionize neuroscience, and acquiring these measures in clinically feasible times would greatly improve patient monitoring and clinical studies of drug efficacy. However, a good understanding of microstructural imaging techniques is essential to set realistic expectations and to prevent over-interpretation of results...
October 2016: Functional Neurology
https://www.readbyqxmd.com/read/28072380/network-functional-connectivity-and-whole-brain-functional-connectomics-to-investigate-cognitive-decline-in-neurodegenerative-conditions
#6
REVIEW
O Dipasquale, Mara Cercignani
Non-invasive mapping of brain functional connectivity (FC) has played a fundamental role in neuroscience, and numerous scientists have been fascinated by its ability to reveal the brain's intricate morphology and functional properties. In recent years, two different techniques have been developed that are able to explore FC in pathophysiological conditions and to provide simple and non-invasive biomarkers for the detection of disease onset, severity and progression. These techniques are independent component analysis, which allows a network-based functional exploration of the brain, and graph theory, which provides a quantitative characterization of the whole-brain FC...
October 2016: Functional Neurology
https://www.readbyqxmd.com/read/28071147/abstracts-of-presentations-at-the-joint-meeting-of-the-eeg-clinical-neuroscience-society-ecns-the-international-society-for-brain-electromagnetic-topography-isbet-and-the-international-society-for-neuroimaging-in-psychiatry-isnip-in-halifax-nova-scotia-canada
#7
(no author information available yet)
No abstract text is available yet for this article.
October 2016: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28064175/neuroimaging-of-inflammation-in-memory-and-related-other-disorders-nimrod-study-protocol-a-deep-phenotyping-cohort-study-of-the-role-of-brain-inflammation-in-dementia-depression-and-other-neurological-illnesses
#8
W Richard Bevan-Jones, Ajenthan Surendranathan, Luca Passamonti, Patricia Vázquez Rodríguez, Robert Arnold, Elijah Mak, Li Su, Jonathan P Coles, Tim D Fryer, Young T Hong, Guy Williams, Franklin Aigbirhio, James B Rowe, John T O'Brien
INTRODUCTION: Inflammation of the central nervous system is increasingly regarded as having a role in cognitive disorders such as dementia and depression, but it is not clear how such inflammation relates to other aspects of neuropathology, structural and functional changes in the brain and symptoms (as assessed via clinical and neuropsychological assessment and MRI). This study will explore these pathophysiological mechanisms using positron emission tomography (PET) which allows in vivo imaging of inflammation, amyloid and τ deposition, together with neuropsychological profiling, MRI and peripheral biomarker analysis...
January 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28063207/lithiumeter-version-2-0
#9
Gin S Malhi, Samuel Gershon, Tim Outhred
BACKGROUND: The Lithiumeter was developed as a visual and practical guide for determining lithium levels in the management of bipolar disorder (BD). It appears to have been well received, as evidenced by its increasing popularity amongst doctors as a deskside clinical aide, and adoption and reproduction of the schematic in clinical guidelines and texts. However, since its publication 5 years ago, key basic neuroscience and clinical research developments pertaining to lithium have significantly advanced our understanding, necessitating further refinement of guidance concerning the practicalities of lithium therapy...
December 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/28060221/valproic-acid-special-considerations-and-targeted-monitoring
#10
Angela Collins-Yoder, Jordan Lowell
Valproic acid (VPA) is a medication used to treat multiple neuroscience conditions. It is an inexpensive and useful medication, with a low incidence of adverse drug events. Nonetheless, optimal clinical outcomes require that a series of screening and laboratory steps be followed before the initiation of VPA therapy. An additional aspect of pharmacovigilance is to recognize clinical patterns signaling genetic traits that preclude VPA, background of the black box warnings, targeted assessments, and laboratory monitoring indicated while on VPA...
February 2017: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
https://www.readbyqxmd.com/read/28059802/recent-progress-in-translational-research-on-neurovascular-and-neurodegenerative-disorders
#11
Hans-Ulrich Demuth, Rick M Dijkhuizen, Tracy D Farr, Mathias Gelderblom, Karen Horsburgh, Costantino Iadecola, Damian D Mcleod, Dominik Michalski, Tim H Murphy, Josune Orbe, Willem M Otte, Gabor C Petzold, Nikolaus Plesnila, Georg Reiser, Klaus G Reymann, Maria A Rueger, Dorothee Saur, Sean I Savitz, Stephan Schilling, Neil J Spratt, Renée J Turner, Raghu Vemuganti, Denis Vivien, Manuel Yepes, Marietta Zille, Johannes Boltze
The already established and widely used intravenous application of recombinant tissue plasminogen activator as a re-opening strategy for acute vessel occlusion in ischemic stroke was recently added by mechanical thrombectomy, representing a fundamental progress in evidence-based medicine to improve the patient's outcome. This has been paralleled by a swift increase in our understanding of pathomechanisms underlying many neurovascular diseases and most prevalent forms of dementia. Taken together, these current advances offer the potential to overcome almost two decades of marginally successful translational research on stroke and dementia, thereby spurring the entire field of translational neuroscience...
January 3, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28048672/tu-c-horizons-01-the-expanding-horizons-travel-grant-program-eposters-and-discussion
#12
J Siewerdsen, R Jeraj
The Expanding Horizons travel grant program provides opportunity for students and trainees to broaden the scope of scientific meetings they attend and gain insight from research outside traditional domains of medical physics. Through participation in such conferences, early-career researchers are introduced to new topics with relevance to medical physics research as a means to expand the scientific horizons of our discipline. This year, 21 Expanding Horizons travel grants were awarded, granting travel to 17 conferences, including: Radiomics, the World Molecular Imaging Society (WMIS), the 3D Printing Conference and Expo, the GPU Technology Conference, the SIAM Imaging Science Conference, the Human Brain Mapping Conference, the OSA Conference on Clinical and Translational Biophotonics, the Society for Neuroscience, the AACR Conference on Tumor Microenvironment, and the Conference on Knowledge Discovery and Data Mining...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047131/su-g-iep2-14-validation-of-plastimatch-mabs-a-tool-for-automatic-image-segmentation
#13
P Zaffino, P Raudaschl, K Fritscher, M Spadea, G Sharp
PURPOSE: In this work we present the validation of Plastimatch MABS, an open source software for multi atlas based segmentation of medical images. METHODS: The validation was performed on two different clinical datasets: 1) 25 CT image volumes of patients treated for H&N cancer; 2) 20 MRI series of patients having a neurological diagnosis. For the first set, 8 organs at risk to be spared during the therapy were segmented: mandible, brainstem and both left/right optic nerves, parotid and submandibular glands...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28034791/1d-spectral-editing-and-2d-multispectral-in-vivo-1-h-mrs-and-1-h-mrsi-methods-and-applications
#14
Wolfgang Bogner, Gilbert Hangel, Morteza Esmaeili, Ovidiu C Andronesi
This article reviews the methodological aspects of detecting low-abundant J-coupled metabolites via 1D spectral editing techniques and 2D nuclear magnetic resonance (NMR) methods applied in vivo, in humans, with a focus on the brain. A brief explanation of the basics of J-evolution will be followed by an introduction to 1D spectral editing techniques (e.g., J-difference editing, multiple quantum coherence filtering) and 2D-NMR methods (e.g., correlation spectroscopy, J-resolved spectroscopy). Established and recently developed methods will be discussed and the most commonly edited J-coupled metabolites (e...
December 26, 2016: Analytical Biochemistry
https://www.readbyqxmd.com/read/28032396/computational-neuroscience-approach-to-biomarkers-and-treatments-for-mental-disorders
#15
Noriaki Yahata, Kiyoto Kasai, Mitsuo Kawato
Psychiatry research has long experienced a stagnation stemming from a lack of understanding of the neurobiological underpinnings of phenomenologically defined mental disorders. Recently, the application of computational neuroscience to psychiatry research has shown great promise in establishing a link between phenomenological and pathophysiological aspects of mental disorders, thereby recasting current nosology in more biologically meaningful dimensions. In this review, we highlight recent investigations in computational neuroscience that undertook either theory- or data-driven approaches to quantitatively delineate the mechanisms of mental disorders...
December 29, 2016: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28032321/targeting-the-cerebellum-by-noninvasive-neurostimulation-a-review
#16
REVIEW
Kim van Dun, Florian Bodranghien, Mario Manto, Peter Mariën
Transcranial magnetic and electric stimulation of the brain are novel and highly promising techniques currently employed in both research and clinical practice. Improving or rehabilitating brain functions by modulating excitability with these noninvasive tools is an exciting new area in neuroscience. Since the cerebellum is closely connected with the cerebral regions subserving motor, associative, and affective functions, the cerebello-thalamo-cortical pathways are an interesting target for these new techniques...
December 28, 2016: Cerebellum
https://www.readbyqxmd.com/read/28032249/anxiety-and-depressive-symptoms-among-two-seriously-medically-ill-populations-and-their-family-caregivers-a-comparison-and-clinical-implications
#17
Kelly M Shaffer, Jamie M Jacobs, Jessica N Coleman, Jennifer S Temel, Jonathan Rosand, Joseph A Greer, Ana-Maria Vranceanu
BACKGROUND: Anxiety and depression are common among patients with acute illness and their families. In oncology, psychosocial services addressing these symptoms are increasingly part of regular practice. Less is known about psychiatric distress among patients with acute neurological injury (ANI) and their family caregivers. To highlight this inequity in psychosocial intervention across medical services, we compared anxiety and depressive symptomatology shortly following diagnosis among patients facing incurable cancer or ANI and their family caregivers...
December 28, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/28031978/translational-research-needs-us-to-go-back-to-basics-and-collaborate-interview-with-lars-sundstrom
#18
Lars Sundstrom
Lars Sundstrom is Director of Enterprise and Translation at the West of England Academic Health Sciences Network [1] (UK), a Professor of Practice in Translational Medicine and Co-Director of the Elizabeth Blackwell Institute for Health Research at Bristol University [2] (UK), and an honorary Professor of Medicine at Cardiff University (UK). He has extensive experience in translational medicine and clinical neurosciences, holding positions at several eminent universities. He has also held executive and board-level positions at several SMEs, developing new therapeutics for neurological conditions and tools for drug discovery...
September 2016: Future Science OA
https://www.readbyqxmd.com/read/28027956/neuropsychological-changes-in-melancholic-and-atypical-depression-a-systematic-review
#19
REVIEW
Nayanne Beckmann Bosaipo, Maria Paula Foss, Allan H Young, Mario Francisco Juruena
There is not a consensus as to whether neuropsychological profiling can distinguish depressive subtypes. We aimed to systematically review and critically analyse the literature on cognitive function in patients with melancholic and atypical depression. We searched in databases PubMed, SCOPUS, Web of Knowledge and PsycInfo for papers comparing the neuropsychological performance of melancholic patients (MEL) to non-melancholic depressive patients (NMEL), including atypical depressives, and healthy controls (HC)...
December 24, 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28026746/robust-estimation-of-sparse-narrowband-spectra-from-binary-neuronal-spiking-data
#20
Sina Miran, Patrick Purdon, Emery Brown, Behtash Babadi
OBJECTIVE: Characterizing the spectral properties of neuronal responses is an important problem in computational neuroscience, as it provides insight into the spectral organization of the underlying functional neural processes. Although spectral analysis techniques are widely used in the analysis of noninvasive neural recordings such as EEG, their application to spiking data is limited due to the binary and non-linear nature of neuronal spiking. In this paper, we address the problem of estimating the power spectral density of the neural covariate driving the spiking statistics of a neuronal population from binary observations...
December 22, 2016: IEEE Transactions on Bio-medical Engineering
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