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Affective neurophysiology

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https://www.readbyqxmd.com/read/28624433/the-highs-and-lows-of-the-human-brain-on-dopaminergics-evidence-from-neuropharmacology
#1
REVIEW
Daniel Martins, Mitul A Mehta, Diana Prata
Rewards are appetitive events that elicit approach. Ground-breaking findings from neurophysiological experiments in animals, alongside neuropharmacology and neuroimaging research in human samples have identified dopamine as the main neurochemical messenger of global reward processing in the brain. However, dopamine's contribution to the different components of reward processing remains to be precisely defined. To facilitate the informed design and interpretation of reward studies in humans, we have systematically reviewed all existing human pharmacological studies investigating how drug manipulation of the dopamine system affects reward-related behaviour and its neural correlates...
June 14, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28622986/top-down-and-bottom-up-front-to-back-comment-on-move-me-astonish-me-delight-my-eyes-and-brain-the-vienna-integrated-model-of-top-down-and-bottom-up-processes-in-art-perception-vimap-and-corresponding-affective-evaluative-and-neurophysiological-correlates-by
#2
https://www.readbyqxmd.com/read/28610950/coherence-in-p300-as-a-predictor-for-the-recovery-from-disorders-of-consciousness
#3
Ye Zhang, Ran Li, Jubao Du, Su Huo, Jianhui Hao, Weiqun Song
Accurate and reliable prognostic judgments for disorders of consciousness (DOCs) can provide useful information for clinicians in the establishment of appropriate care plan, and may affect end-of-life decisions of caregivers. But until now no certain or standardized prognostic indicator has been constructed to predict the probability of awareness recovery. This study aims to assess higher-order cortical information processing in DOCs by event-related potential (ERP) and determine the value of P300 to predict the long-term prognosis...
June 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28602723/ugliness-as-the-fourth-wall-breaker-comment-on-move-me-astonish-me-delight-my-eyes-and-brain-the-vienna-integrated-model-of-top-down-and-bottom-up-processes-in-art-perception-vimap-and-corresponding-affective-evaluative-and-neurophysiological-correlates-by
#4
https://www.readbyqxmd.com/read/28602721/adding-gestalt-to-the-picture-comment-on-move-me-astonish-me%C3%A2-delight-my-eyes-and-brain-the-vienna-integrated-model-of-top-down-and-bottom-up-processes-in-art-perception-vimap-and-corresponding-affective-evaluative-and-neurophysiological-correlates-by-matthew
#5
https://www.readbyqxmd.com/read/28600632/dynamic-complexity-measures-and-entropy-paths-for-modelling-and-comparison-of-evolution-of-patients-with-drug-resistant-epileptic-encephalopathy-syndromes-drees
#6
Ricardo Zavala-Yoe, Ricardo A Ramirez-Mendoza
Epileptic encephalopathies (EE) is a term coined by the International League Against Epilepsy (ILAE) to refer to a group of epilepsies in which the ictal and interictal abnormalities may contribute to progressive cerebral dysfunction. Among them, two affect mainly children and are very difficult to deal with, Doose and Lennox-Gastaut syndromes, (DS and LGS, respectively). So far (Zavala-Yoe et al., J Integr Neurosci 15(2):205-223, 2015a and works of ours there), quantitative analysis of single case studies of EE have been performed...
June 9, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28595850/learning-dynamics-by-theoretical-tools-of-game-theory-comment-on-move-me-astonish-me-delight-my-eyes-and-brain-the-vienna-integrated-model-of-top-down-and-bottom-up-processes-in-art-perception-vimap-and-corresponding-affective-evaluative-and-neurophysiological
#7
https://www.readbyqxmd.com/read/28592282/the-role-of-virtual-reality-in-improving-motor-performance-as-revealed-by-eeg-a-randomized-clinical-trial
#8
Rocco Salvatore Calabrò, Antonino Naro, Margherita Russo, Antonino Leo, Rosaria De Luca, Tina Balletta, Antonio Buda, Gianluca La Rosa, Alessia Bramanti, Placido Bramanti
BACKGROUND: Many studies have demonstrated the usefulness of repetitive task practice by using robotic-assisted gait training (RAGT) devices, including Lokomat, for the treatment of lower limb paresis. Virtual reality (VR) has proved to be a valuable tool to improve neurorehabilitation training. The aim of our pilot randomized clinical trial was to understand the neurophysiological basis of motor function recovery induced by the association between RAGT (by using Lokomat device) and VR (an animated avatar in a 2D VR) by studying electroencephalographic (EEG) oscillations...
June 7, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28590364/neurophysiological-effects-of-bitopertin-in-schizophrenia
#9
Joshua T Kantrowitz, Karen A Nolan, Michael L Epstein, Nayla Lehrfeld, Constance Shope, Eva Petkova, Daniel C Javitt
PURPOSE/BACKGROUND: Deficits in N-methyl-D-aspartate receptor (NMDAR) function contribute to symptoms and cognitive dysfunction in schizophrenia and are associated with impaired generation of event-related potential measures including auditory mismatch negativity. Parallel studies of the NMDAR agonist d-serine have suggested that sensitivity of these measures to glutamate-based interventions is related to symptomatic and cognitive response. Bitopertin is a selective inhibitor of glycine transport...
June 5, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28588549/amyotrophic-lateral-sclerosis-and-myasthenia-gravis-overlap-syndrome-a-review-of-two-cases-and-the-associated-literature
#10
Hongfei Tai, Liying Cui, Yuzhou Guan, Mingsheng Liu, Xiaoguang Li, Yan Huang, Jing Yuan, Dongchao Shen, Dawei Li, Feifei Zhai
OBJECTIVE: To describe the characteristics of patients with amyotrophic lateral sclerosis (ALS) and myasthenia gravis (MG) overlap syndrome and explore the relationship between the two diseases. METHODS: We conducted a search of medical records at Peking Union Medical University Hospital from 1983 to 2015 for coexistence of ALS and MG and searched the PubMed database for all literature describing ALS and MG overlap syndrome published through December 2016. We analyzed the clinical and neurophysiological characteristics of patients by groups according to strict diagnostic criteria...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28580638/emotional-reactivity-and-regulation-in-individuals-with-psychopathic-traits-evidence-for-a-disconnect-between-neurophysiology-and-self-report
#11
Jennifer D Ellis, Hans S Schroder, Christopher J Patrick, Jason S Moser
Individuals with psychopathic traits often demonstrate blunted reactivity to negative emotional stimuli. However, it is not yet clear whether these individuals also have difficulty regulating their emotional responses to negative stimuli. To address this question, participants with varying levels of psychopathic traits (indexed by the Triarchic Measure of Psychopathy; Patrick, 2010) completed a task in which they passively viewed, increased, or decreased their emotions to negative picture stimuli while electrocortical activity was recorded...
June 5, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28576604/task-dependent-variability-of-essential-tremor
#12
Nicole Schuhmayer, Corinna Weber, Markus Kieler, Bernhard Voller, Walter Pirker, Eduard Auff, Dietrich Haubenberger
INTRODUCTION: In Essential Tremor (ET), tremor characteristics and the impairment caused by tremor may vary from task to task. A variability of tremor frequency between postural and kinetic tasks has been proposed in ET, suggesting either multiple central oscillating networks, or peripheral or proprioceptive feedback-mechanisms. This electrophysiological study aimed to assess tremor frequencies and amplitudes in tasks involving postural and kinetic tremor, and compare findings within and across tasks, to delineate physiological differences underlying individually affected manual tasks in ET...
May 20, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28566231/representing-the-sublime-in-the-vimap-and-empirical-aesthetics-reviving-edmund-burke-s-a-philosophical-enquiry-into-the-origins-of-our-ideas-of-the-sublime-and-beautiful-comment-on-move-me-astonish-me-delight-my-eyes-and-brain-the-vienna-integrated-model-of
#13
https://www.readbyqxmd.com/read/28562642/enhancement-of-multitasking-performance-and-neural-oscillations-by-transcranial-alternating-current-stimulation
#14
Wan-Yu Hsu, Theodore P Zanto, Martine R van Schouwenburg, Adam Gazzaley
Multitasking is associated with the generation of stimulus-locked theta (4-7 Hz) oscillations arising from prefrontal cortex (PFC). Transcranial alternating current stimulation (tACS) is a non-invasive brain stimulation technique that influences endogenous brain oscillations. Here, we investigate whether applying alternating current stimulation within the theta frequency band would affect multitasking performance, and explore tACS effects on neurophysiological measures. Brief runs of bilateral PFC theta-tACS were applied while participants were engaged in a multitasking paradigm accompanied by electroencephalography (EEG) data collection...
2017: PloS One
https://www.readbyqxmd.com/read/28557820/features-of-resting-state-eeg-theta-coherence-in-somatic-symptom-disorder-compared-to-major-depressive-disorder-a-pilot-study
#15
Jaeyoung Ahn, Doug Hyun Han, Ji Sun Hong, Kyoung Joon Min, Young Sik Lee, Bong-Jin Hahm, Sun Mi Kim
OBJECTIVE: Somatic symptom disorder (SSD) often co-occurs with major depressive disorder (MDD). Both conditions share common psychobiological and biobehavioral characteristics, but little is known about differential patterns in brain function. In this study, we compared resting-state functional brain connectivity between SSD and MDD using quantitative electroencephalography (QEEG). METHODS: Fifteen patients with SSD (SSD group), 15 patients with MDD (MDD group), and 15 healthy volunteers (HC group) participated in this study...
May 27, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28548479/insular-gliomas-a-surgical-reappraisal-based-on-a-systematic-review-of-the-literature
#16
Domenico Murrone, Rodolfo Maduri, Afif Afif, Domenico Chirchiglia, Isabelle Pelissou-Guyotat, Jacques Guyotat, Francesco Signorelli
INTRODUCTION: Insular gliomas are heterogeneous lesions whose management presents multiple challenges for their tendency to affect young patients in good neurological and cognitive conditions, their deep anatomic location and proximity with critical functional and vascular structures. The appropriate management of insular gliomas requires a multidisciplinary evidence-centred teamwork grounded on the best anatomic, neurophysiological and oncological knowledge. The present study provides a reappraisal of the management of insular gliomas based on a systematic review of the literature with the aim of guiding clinicians in the management of such tumors...
May 25, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28540863/objective-quality-assessment-of-stereoscopic-images-with-vertical-disparity-using-eeg
#17
Forooz Shahbazi Avarvand, Sebastian Bosse, Klaus-Robert Müller, Ralf Schäfer, Guido Nolte, Thomas Wiegand, Gabriel Curio, Wojciech Samek
OBJECTIVE: Neurophysiological correlates of vertical disparity in 3D images are studied in an objective approach using EEG technique. These disparities are known to negatively affect the quality of experience and to cause visual discomfort in stereoscopic visualizations. APPROACH: We have presented four conditions to subjects: one in 2D and three conditions in 3D, one without vertical disparity and two with different vertical disparity levels. Event related potentials (ERPs) are measured for each condition and the differences between ERP components are studied...
May 25, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28539913/herpes-simplex-virus-type-2-myelitis-case-report-and-review-of-the-literature
#18
Raffaele Nardone, Viviana Versace, Francesco Brigo, Frediano Tezzon, Giulio Zuccoli, Slaven Pikija, Larissa Hauer, Johann Sellner
Non-traumatic myelopathies can result from a wide spectrum of conditions including inflammatory, ischemic, and metabolic disorders. Here, we describe the case of a 60-year old immunocompetent woman who developed acute back pain followed by rapidly ascending flaccid tetraparesis, a C6 sensory level, and sphincter dysfunction within 8 h. Acyclovir and steroids were started on day 2 and herpes simplex virus type 2 (HSV-2) was confirmed by polymerase chain reaction in cerebrospinal fluid. Magnetic resonance imaging revealed a bilateral anterior horn tractopathy expanding from C2 to T2 and cervicothoracic cord swelling...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28539912/using-brain-oscillations-and-corticospinal-excitability-to-understand-and-predict-post-stroke-motor-function
#19
Aurore Thibaut, Marcel Simis, Linamara Rizzo Battistella, Chiara Fanciullacci, Federica Bertolucci, Rodrigo Huerta-Gutierrez, Carmelo Chisari, Felipe Fregni
What determines motor recovery in stroke is still unknown and finding markers that could predict and improve stroke recovery is a challenge. In this study, we aimed at understanding the neural mechanisms of motor function recovery after stroke using neurophysiological markers by means of cortical excitability (transcranial magnetic stimulation-TMS) and brain oscillations (electroencephalography-EEG). In this cross-sectional study, 55 subjects with chronic stroke (62 ± 14 yo, 17 women, 32 ± 42 months post-stroke) were recruited in two sites...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28533625/beneficial-effect-of-interventional-exercise-on-autistic-fragile-x-syndrome
#20
REVIEW
Seunghoon Lee, Jinyoung Won, Sookyoung Park, Sang-Rae Lee, Kyu-Tae Chang, Joo-Heon Kim, Yonggeun Hong
[Purpose] The purpose of the present review is to discuss recent published articles in the understanding of efficacy of interventional exercise on autistic Fragile X syndrome (FXS) with special emphasis on its significance in clinical application in patients. [Methods] This review article was identified scientifically and/or clinically relevant articles from PubMed that directly/indirectly met the inclusion criteria. [Results] Mutation of fragile X mental retardation 1 (fmr1) gene on the X chromosome is related with loss of fragile X mental retardation protein (FMRP) that affecting physiological and behavioral abnormalities...
April 2017: Journal of Physical Therapy Science
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