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https://www.readbyqxmd.com/read/28738669/evaluation-of-the-effectiveness-of-a-transfer-interhemispheric-training-programme-in-the-early-stages-of-fencing-training
#1
Mateusz Witkowski, Michał Bronikowski, Agnieszka Nowik, Maciej Tomczak, Jan Strugarek
BACKGROUND: A high level of motor coordination (with an emphasis on the accuracy of hand movements) is an important part of fencers' training. Research on motor coordination shows that both hemispheres of the brain are involved in controlling the action of each of the upper limbs. As the physical training of one hand is believed to significantly increase the performance of the other (untrained) hand [14], the authors attempt to verify the hypothesis that specialized training of the nondominant limb can improve the performance of the dominant hand in fencing...
July 24, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28738081/comparative-molecular-analyses-of-invasive-fall-armyworm-in-togo-reveal-strong-similarities-to-populations-from-the-eastern-united-states-and-the-greater-antilles
#2
Rodney N Nagoshi, Djima Koffi, Komi Agboka, Kodjo Agbeko Tounou, Rahul Banerjee, Juan Luis Jurat-Fuentes, Robert L Meagher
The fall armyworm (Spodoptera frugiperda, J.E. Smith) is a noctuid moth that is a major and ubiquitous agricultural pest in the Western Hemisphere. Infestations have recently been identified in several locations in Africa, indicating its establishment in the Eastern Hemisphere where it poses an immediate and significant economic threat. Genetic methods were used to characterize noctuid specimens infesting multiple cornfields in the African nation of Togo that were tentatively identified as fall armyworm by morphological criteria...
2017: PloS One
https://www.readbyqxmd.com/read/28738063/atypical-speech-versus-non-speech-detection-and-discrimination-in-4-to-6-yr-old-children-with-autism-spectrum-disorder-an-erp-study
#3
Alena Galilee, Chrysi Stefanidou, Joseph P McCleery
Previous event-related potential (ERP) research utilizing oddball stimulus paradigms suggests diminished processing of speech versus non-speech sounds in children with an Autism Spectrum Disorder (ASD). However, brain mechanisms underlying these speech processing abnormalities, and to what extent they are related to poor language abilities in this population remain unknown. In the current study, we utilized a novel paired repetition paradigm in order to investigate ERP responses associated with the detection and discrimination of speech and non-speech sounds in 4- to 6-year old children with ASD, compared with gender and verbal age matched controls...
2017: PloS One
https://www.readbyqxmd.com/read/28737256/insula-based-networks-in-professional-musicians-evidence-for-increased-functional-connectivity-during-resting-state-fmri
#4
Anna M Zamorano, Ignacio Cifre, Pedro Montoya, Inmaculada Riquelme, Boris Kleber
Despite considerable research on experience-dependent neuroplasticity in professional musicians, detailed understanding of an involvement of the insula is only now beginning to emerge. We investigated the effects of musical training on intrinsic insula-based connectivity in professional classical musicians relative to nonmusicians using resting-state functional MRI. Following a tripartite scheme of insula subdivisions, coactivation profiles were analyzed for the posterior, ventral anterior, and dorsal anterior insula in both hemispheres...
July 24, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28737109/clinical-outcome-prediction-after-thrombectomy-of-proximal-middle-cerebral-artery-occlusions-by-the-appearance-of-lenticulostriate-arteries-on-magnetic-resonance-angiography-a-retrospective-analysis
#5
Johannes Kaesmacher, Kornelia Kreiser, Nathan W Manning, Alexandra S Gersing, Silke Wunderlich, Claus Zimmer, Justus F Kleine, Benedikt Wiestler, Tobias Boeckh-Behrens
Post-ischemic vasodynamic changes in infarcted brain parenchyma are common and range from hypo- to hyperperfusion. In the present study, appearance of the lenticulostriate arteries (LSAs) on postinterventional 3T time-of-flight (TOF)-MRA suggestive for altered post-stroke vasodynamics following thrombectomy was investigated. Patients who underwent thrombectomy for a proximal MCA occlusion and for whom postinterventional 3T TOF-MRA (median at day 3) was available, were included in this retrospective analysis (n=98)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28736653/hemispheric-differences-in-electrical-and-hemodynamic-responses-during-hemifield-visual-stimulation-with-graded-contrasts
#6
Juanning Si, Xin Zhang, Yujin Zhang, Tianzi Jiang
A multimodal neuroimaging technique based on electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) was used with horizontal hemifield visual stimuli with graded contrasts to investigate the retinotopic mapping more fully as well as to explore hemispheric differences in neuronal activity, the hemodynamic response, and the neurovascular coupling relationship in the visual cortex. The fNIRS results showed the expected activation over the contralateral hemisphere for both the left and right hemifield visual stimulations...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28735505/role-of-infarct-location-and-pre-existing-depression-on-cardiac-baroreceptor-sensitivity-in-subacute-ischemic-stroke
#7
Aurelie De Vos, Jacques De Keyser, Sylvie De Raedt
Reduced cardiac baroreceptor sensitivity (BRS) after acute stroke is associated with worse outcome. The underlying mechanisms of reduced BRS are unclear. We evaluated cross correlation BRS (xBRS) in 184 patients with suspected acute ischemic stroke within 72 h of symptom onset. Among these patients, 22 had a transient ischemic attack (TIA) and 27 had a stroke mimic. Sixty-four age- and sex-matched ambulant control subjects without stroke were included. Compared with controls, xBRS was significantly lower in patients with ischemic stroke, TIA, and stroke mimics (4...
July 22, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28735381/characterization-of-the-sensorimotor-rhythm-in-4-month-old-infants-born-at-term-and-premature
#8
Milene Roca-Stappung, Minerva Moguel-González, Thalía Fernández, Thalía Harmony, Omar Mendoza-Montoya, José Luis Marroquín, Salvador Ruiz-Correa, Lourdes Díaz-Comas, Gloria Otero-Ojeda
The sensorimotor rhythm (SMR) is an electroencephalographic rhythm associated with motor and cognitive development observed in the central brain regions during wakefulness in the absence of movement, and it reacts contralaterally to generalized and hemibody movements. The purpose of this work was to characterize the SMR of 4-month-old infants, born either healthy at term or prematurely with periventricular leukomalacia (PVL). Two groups of infants were formed: healthy and premature with PVL. Their electroencephalograms (EEGs) were recorded in four conditions: rest, free movement, right-hand grasping and left-hand grasping, in order to explore general reactivity to free movement and contralateral reactivity in hand-grasping conditions...
July 22, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28735138/a-hemispheric-chronic-subdural-hematoma-concealing-subdural-metastases-a-terrible-surprise-behind-a-routine-emergency-room-consultation
#9
Riccardo Caruso, Alessandro Pesce, Valentina Martines
No abstract text is available yet for this article.
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28734761/patients-with-duchenne-muscular-dystrophy-are-significantly-shorter-than-those-with-becker-muscular-dystrophy-with-the-higher-incidence-of-short-stature-in-dp71-mutated-subgroup
#10
Masaaki Matsumoto, Hiroyuki Awano, Tomoko Lee, Yasuhiro Takeshima, Masafumi Matsuo, Kazumoto Iijima
Duchenne and Becker muscular dystrophy (DMD/BMD) are caused by mutations in the dystrophin gene and are characterized by severe and mild progressive muscle wasting, respectively. Short stature has been reported as a feature of DMD in the Western hemisphere, but not yet confirmed in Orientals. Height of young BMD has not been fully characterized. Here, height of ambulant and steroid naive Japanese 179 DMD and 42 BMD patients between 4 and 10 years of age was retrospectively examined using height standard deviation score (SDS)...
June 19, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28734143/cortical-thickness-changes-in-adult-moyamoya-disease-assessed-by-structural-magnetic-resonance-imaging
#11
Peng-Gang Qiao, Zhi-Wei Zuo, Cong Han, Juan Zhou, Hong-Tao Zhang, Lian Duan, Tianyi Qian, Gong-Jie Li
PURPOSE: To characterize the changes in cortical thickness of adult patients with moyamoya disease (MMD). METHODS: 60 patients with MMD and 60 age and sex-matched healthy volunteers were recruited. Structural images were acquired by MRI. Freesurfer was used to measure cortical thickness in patients and controls, and this was compared with MRA scores and cerebrovascular accident (CVA) scores. RESULTS: Compared with controls, the average cortical thickness of both cerebral hemispheres was lower in patients than in controls and symmetrical differences were seen in the regional cortex: bilateral precentral gyri were thinner, bilateral postcentral gyri and posterior cingulate gyri were thicker, and thinning and thickening were both found in the insula...
July 11, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28734139/%C3%AE-nfluenza-a-h3n2-genetic-variants-in-vaccinated-patients-in-northern-greece
#12
A Melidou, G Gioula, M Exindari, E Ioannou, K Gkolfinopoulou, T Georgakopoulou, S Tsiodras, A Papa
BACKGROUND: Influenza A(H3N2) viruses predominated during the influenza 2016/2017 season and showed extensive genetic diversification. A high vaccination failure rate was noticed during the 2016/17 season in Greece, especially among the elderly. OBJECTIVES: The scope of the study was to investigate the genetic characteristics of A(H3N2) circulating viruses and viruses detected in vaccinated patients. STUDY DESIGN: Virus samples originated from vaccinated and unvaccinated patients, obtained at the National Influenza Centre for northern Greece...
July 14, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28733757/the-clinico-radiological-spectrum-of-dyke-davidoff-masson-syndrome-in-adults
#13
Zeynep Özözen Ayas, Kıyasettin Asil, Ruhsen Öcal
Dyke-Davidoff-Masson syndrome (DDMS) is characterized by cerebral hemiatrophy, seizure, contralateral hemiplegia/hemiparesis, and mental retardation. In this study, clinical and radiological investigations of seven patients who were diagnosed with DDMS as adult age were evaluated and discussed. Seven patients (four male, three female) were included. The mean age ± SD of the patients was 46 ± 21 years. Clinical presentation of six patients was epileptic seizure. One patient was presented with head trauma due to a fall...
July 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28733246/defective-recognition-and-naming-of-famous-people-from-voice-in-patients-with-unilateral-temporal-lobe-tumours
#14
C Papagno, G Mattavelli, A Casarotti, L Bello, G Gainotti
Twenty-nine patients who underwent surgery for a temporal glioma, either in the left (16 patients) or right (13 patients) hemisphere, were administered standardized tests of unknown voice discrimination (UVD) and of famous voice recognition (VO-REC), which included tasks of familiarity evaluation, semantic identification and naming of famous voices. The UVD consisted of twenty stimuli, in which two audio files were consecutively presented; the subject was requested to judge whether the voices belonged to the same or different persons...
July 18, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28732759/hemispheric-asymmetries-in-the-processing-of-body-sides-a-study-with-ambiguous-human-silhouettes
#15
Daniele Marzoli, Alessandra Pagliara, Giulia Prete, Gianluca Malatesta, Chiara Lucafò, Caterina Padulo, Alfredo Brancucci, Luca Tommasi
When required to indicate the perceived orientation of pictures of human silhouettes with ambiguous front/back orientation and handedness, both right- and left-handed participants perceive the figures more frequently as right-handed than as left-handed, which seems to indicate an attentional bias towards the right arm of human bodies. Given that past research exploiting the divided visual field paradigm indicated a processing advantage for contralateral body parts in both hemispheres, we tested whether human silhouettes with ambiguous handedness presented in the right visual field would be interpreted more frequently as right-handed compared with those presented in the left visual field...
July 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28732352/cerebral-blood-flow-changes-in-remitted-early-and-late-onset-depression-patients
#16
Wenxiang Liao, Ze Wang, Xiangrong Zhang, Hao Shu, Zan Wang, Duan Liu, Zhijun Zhang
Abnormal cerebral blood flow (CBF) is reportedly associated with major depressive disorder (MDD). We have investigated CBF changes in early-onset depression (EOD) and late-onset depression (LOD), and their impact on cognitive function. Thirty-two remitted EOD patients, 32 remitted LOD patients, and 43 age-matched healthy controls were recruited, and the pulsed arterial spin labeling data were scanned under 3.0T MRI and processed through voxel-by-voxel statistical analysis. Compared to healthy controls, LOD patients had decreased normalized CBF in the bilateral precuneus, cuneus, right fronto-cingulate-striatal areas, and right temporal, occipital and parietal lobes, but increased normalized CBF in the left frontal and temporal cortices and the cingulate gyrus...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732269/gyral-net-a-new-representation-of-cortical-folding-organization
#17
Hanbo Chen, Yujie Li, Fangfei Ge, Gang Li, Dinggang Shen, Tianming Liu
One distinct feature of the cerebral cortex is its convex (gyri) and concave (sulci) folding patterns. Due to the remarkable complexity and variability of gyral/sulcal shapes, it has been challenging to quantitatively model their organization patterns. Inspired by the observation that the lines of gyral crests can form a connected graph on each brain hemisphere, we propose a new representation of cortical gyri/sulci organization pattern - gyral net, which models cortical architecture from a graph perspective, starting with nodes and edges obtained from the reconstructed cortical surfaces...
July 15, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28731396/contralateral-posterior-interhemispheric-approach-to-deep-medial-parietooccipital-vascular-malformations-surgical-technique-and-results
#18
Jan-Karl Burkhardt, Ethan A Winkler, Michael T Lawton
OBJECTIVE Deep medial parietooccipital arteriovenous malformations (AVMs) and cerebral cavernous malformations (CCMs) are traditionally resected through an ipsilateral posterior interhemispheric approach (IPIA), which creates a deep, perpendicular perspective with limited access to the lateral margins of the lesion. The contralateral posterior interhemispheric approach (CPIA) flips the positioning, with the midline positioned horizontally for retraction due to gravity, but with the AVM on the upper side and the approach from the contralateral, lower side...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28730720/microstructural-white-matter-brain-abnormalities-in-patients-with-idiopathic-fecal-incontinence
#19
J Muthulingam, S Haas, T M Hansen, S Laurberg, L Lundby, H S Jørgensen, A M Drewes, K Krogh, J B Frøkjaer
BACKGROUND: Abnormal central nervous system processing of visceral sensation may be a part of the pathogenesis behind idiopathic fecal incontinence (IFI). Our aim was to characterize brain differences in patients with IFI and healthy controls by means of structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI). METHODS: In 21 female patients with IFI and 15 female healthy controls, whole-brain structural differences in gray matter volume (GMV), cortical thickness, and white matter tracts fractional anisotropy (FA) were quantified...
July 21, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28730570/structural-connectivity-differences-in-essential-tremor-with-and-without-resting-tremor
#20
Maria Eugenia Caligiuri, Gennarina Arabia, Gaetano Barbagallo, Angela Lupo, Maurizio Morelli, Rita Nisticò, Fabiana Novellino, Andrea Quattrone, Maria Salsone, Basilio Vescio, Andrea Cherubini, Aldo Quattrone
In this work, we investigated motor network structure in patients affected by essential tremor (ET) with or without resting tremor, using probabilistic tractography of the cerebello-thalamo-basal ganglia-cortical loop. Twenty-five patients with ET, twenty-two patients with ET associated with resting tremor (rET), and twenty-five age- and sex-matched healthy controls were included in the study. All participants underwent whole-brain 3D T1-weighted and diffusion-weighted MRI, and DAT-SPECT. Probabilistic tractography was performed on diffusion data in network mode, reconstructing connections between the different structures of the cerebello-thalamo-basal ganglia-cortical loop...
July 20, 2017: Journal of Neurology
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