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Πέμπτη 6 Αυγούστου 2020


Visualization of electrical activity in the cervical spinal cord and nerve roots after ulnar nerve stimulation using magnetospinography
Publication date: Available online 5 August 2020Source: Clinical NeurophysiologyAuthor(s): Yuki Miyano, Shigenori Kawabata, Miho Akaza, Kensuke Sekihara, Yuko Hoshino, Toru Sasaki, Taishi Watanabe, SukChan Kim, Shinji Sato, Yuki Mitani, Yoshiaki Adachi, Atsushi Okawa
Clinical Neurophysiology
Wed Aug 05, 2020 22:18
Detecting peripheral motor nervous system involvement in chronic spinal cord injury using two novel methods: MScanFit MUNE and Muscle Velocity Recovery Cycles
Publication date: Available online 5 August 2020Source: Clinical NeurophysiologyAuthor(s): Witt A, Fuglsang-Frederiksen A, Finnerup NB, Kasch H, Tankisi H
Clinical Neurophysiology
Wed Aug 05, 2020 22:18
Epidural stimulation for cardiovascular function increases lower limb lean mass in individuals with chronic motor complete spinal cord injury
New Findings What is the central question of this study? Spinal cord injury results in paralysis and deleterious neuromuscular and autonomic adaptations. Lumbosacral epidural stimulation can modulate motor and/or autonomic functions. We assessed whether long‐term epidural stimulation for normalizing cardiovascular function affected leg muscle properties. What is the main finding and its importance? Leg lean mass increased after long‐term epidural stimulation for cardiovascular function,...
Experimental Physiology
Tue Aug 04, 2020 17:25
Placenta‐targeted treatment in hypoxic dams improves maturation and growth of fetal cardiomyocytes in vitro via the release of placental factors
New Findings What is the central question of this study? Does treatment of hypoxic dams with a placenta‐targeted antioxidant prevent the release of placental‐derived factors that impair maturation/growth of fetal cardiomyocytes in vitro ? What is the main finding and its importance? We showed that factors released from hypoxic placentae impaired fetal cardiomyocyte maturation (induced terminal differentiation) and growth (increased cell size) in vitro , which was prevented by maternal treatment...
Experimental Physiology
Tue Aug 04, 2020 17:23
Inconsistent analytic strategies reduce robustness in fear extinction via skin conductance response
Abstract Robustness of fear conditioning and extinction paradigms has become increasingly important for many researchers interested in improving the study of anxiety and trauma disorders. We recently illustrated the wide variability in data analysis techniques in this paradigm, which we argued may result in a lack of robustness. In the current study, we resampled data from six of our own fear acquisition and extinction data sets, with skin conductance as the outcome. In the resampled and original...
Psychophysiology
Tue Aug 04, 2020 14:34
Interindividual differences in brain dynamics of early visual processes: Impact on score accuracy in the mental rotation task
Abstract Interindividual variations in the ability to perform visuospatial mental transformations have been investigated extensively, in particular through mental rotation tasks. However, the impact of early visual processes on performance has been largely ignored. To clarify this issue, we explored the time‐course of early visual processing (from 0 to 450 ms poststimulus) using event‐related potentials topographic analyses. The main findings demonstrated a significant link between early attentional...
Psychophysiology
Tue Aug 04, 2020 14:30
Effects of language context on executive control in unbalanced bilinguals: An ERPs study
Abstract The influence of the language context on language control has been widely discussed in the bilingualism literature, and there is an increase in studies examining the effect of language context on domain‐general executive control. However, it remains unclear how language contexts affect executive control performance. In the present study, we created single‐ and mixed‐language comprehension contexts. Unbalanced Chinese‐English bilinguals completed a modified flanker task that was interleaved...
Psychophysiology
Tue Aug 04, 2020 14:24
Cerebral mechanisms of hypnotic hypoesthesia. An ERP investigation on the expectancy stage of perception
Abstract The present study aims at identifying reliable markers of neural preparatory processes during hypnosis. To this goal, we recorded the electroencephalographic activity of 23 volunteers regardless of their hypnotizability score. Somatosensory evoked potentials (SEPs) were elicited while participants received non‐painful electrical stimuli on the left median nerve in the conditions of relaxation and hypnosis with suggestions of reduced sensation. SEPs analysis was focused on the pre‐stimulus...
Psychophysiology
Tue Aug 04, 2020 14:14
Cardiac defense reactivity and cognitive flexibility in high‐ and low‐resilience women
Abstract Resilience is a protective health variable that contributes to successful adaptation to stressful experiences. However, in spite of its relevance, few studies have examined the psychophysiological and neuropsychological mechanisms involved in resilience. The present study analyzes, in a sample of 54 young women, the relationships between high‐ and low‐resilience, measured with the Spanish versions of Connor‐ Davidson Resilience Scale questionnaire and the Resilience Scale, and two indices...
Psychophysiology
Tue Aug 04, 2020 14:11
Resources to assist EEG/ERP researchers during the COVID‐19 pandemic
Psychophysiology
Tue Aug 04, 2020 14:07
Fighting the intergenerational cycle of obesity with maternal exercise
The Journal of Physiology
Tue Aug 04, 2020 17:26
Building of AMPA‐type glutamate receptors in the ER and its implication for excitatory neurotransmission
Abstract AMPA‐type glutamate receptors (AMPARs), the key elements of fast excitatory neurotransmission in the brain, are receptor ion channels whose core is assembled from pore‐forming and three distinct types of auxiliary subunits. While it is well established that this assembly occurs in the endoplasmic reticulum (ER), it has remained largely enigmatic how this receptor‐building happens. Here we review recent findings on the biogenesis of AMPARs in native neurons as a multistep production line...
The Journal of Physiology
Tue Aug 04, 2020 17:25
Sildenafil: how to make a bad situation worse
The Journal of Physiology
Tue Aug 04, 2020 17:24
Increased lipopolysaccharide‐induced hypothermia in neurogenic hypertension is caused by reduced hypothalamic PGE2 production and increased heat loss
Key points The mechanisms involved in hypothermia and fever during systemic inflammation (SI) remains largely unknown. Our data support the contention that brain‐mediated mechanisms are different in hypertension during SI. Considering that clinically it is not easy to assess all mechanisms involved in cardiovascular and thermoregulatory control during SI this study sheds light on these integrated mechanisms that may be triggered simultaneously in septic hypertensive patients. This study demonstrates...
The Journal of Physiology
Tue Aug 04, 2020 17:23
Maternal sildenafil impairs the cardiovascular adaptations to chronic hypoxemia in fetal sheep
Key points Fetal growth restriction induces a hemodynamic response which aims to maintain blood flow to vital organs such as the brain, in the face of chronic hypoxemia Maternal sildenafil treatment impairs the hypoxemia‐driven hemodynamic response and potentially compromises fetal development. Abstract Background Inadequate substrate delivery to a fetus results in hypoxemia and fetal growth restriction (FGR). In response, fetal cardiovascular adaptations redirect cardiac output to...
The Journal of Physiology
Tue Aug 04, 2020 17:04

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