Results 81 to 90 of about 130,500 (361)

Effect of the Stimulus Duration on the Adaptation of the Optokinetic Afternystagmus

Frontiers in Neurology, 2021
Observing a rotating visual pattern covering a large portion of the visual field induces optokinetic nystagmus (OKN). If the lights are suddenly switched off, optokinetic afternystagmus (OKAN) occurs.
Jan Gygli, Fausto Romano, Fausto Romano, Christopher J. Bockisch, Christopher J. Bockisch, Christopher J. Bockisch, Nina Feddermann-Demont, Nina Feddermann-Demont, Dominik Straumann, Dominik Straumann, Dominik Straumann, Giovanni Bertolini, Giovanni Bertolini   +12 more
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Machine Learning for Subtyping Concussion Using a Clustering Approach

Frontiers in Human Neuroscience, 2021
Background: Concussion subtypes are typically organized into commonly affected symptom areas or a combination of affected systems, an approach that may be flawed by bias in conceptualization or the inherent limitations of interdisciplinary expertise ...
Cirelle K. Rosenblatt, Cirelle K. Rosenblatt, Alexandra Harriss, Aliya-Nur Babul, Samuel A. Rosenblatt   +4 more
doaj   +1 more source

Natural Progression of Symptom Change and Recovery From Concussion in a Pediatric Population

JAMA pediatrics, 2019
Importance The natural progression of symptom change and recovery remains poorly defined in children after concussion. Objectives To describe the natural progression of symptom change by age group (5-7, 8-12, and 13-18 years) and sex, as well as to ...
A. Ledoux, K. Tang, K. Yeates, M. Pusic, K. Boutis, W. Craig, J. Gravel, S. Freedman, I. Gagnon, G. Gioia, M. Osmond, R. Zemek   +11 more
semanticscholar   +1 more source

Visualizing and Quantifying Impact with Mechanochromic Sensing Paints Based on Self‐Assembled Polydiacetylene‐Silk Core‐Shell Vesicles

Advanced Science, EarlyView.
Tracking physical impacts is important in many fields. Self‐assembled microparticles made from polydiacetylene and silk fibroin that change color from blue to red when hit can provide an alternative approach to traditional mechanical transducers, quantitatively visualizing impact with responses ranging from <100 to 770 N.
Marco Lo Presti, Giulia Guidetti, Elisabetta Ruggeri, Terri Lyne Carrington, Fiorenzo G. Omenetto   +4 more
wiley   +1 more source

Trends in concussions at Ontario schools prior to and subsequent to the introduction of a concussion policy - an analysis of the Canadian hospitals injury reporting and prevention program from 2009 to 2016 [PDF]

, 2018
Background: Concussion is a preventable injury that can have long-term health consequences for children and youth. In Ontario, the Policy/Program Memorandum # 158 (PPM) was introduced by the Ministry of Education of Ontario in March 2014.
Fraser-Thomas, Jessica, Macpherson, Alison K., Matveev, Roman, Sergio, Lauren   +3 more
core   +1 more source

The diagnostic and prognostic utility of the dual-task tandem gait test for pediatric concussion

Journal of Sport and Health Science, 2021
Background: The tandem gait test has gained interest recently for assessment of concussion recovery. The purpose of our study was to determine the prognostic and diagnostic use of the single- and dual-task tandem gait test, alongside other clinical ...
Katie A. Van Deventer, Corrine N. Seehusen, Gregory A. Walker, Julie C. Wilson, David R. Howell   +4 more
doaj   +1 more source

Human Brain Contusions Contain Pathogenic Transmissible Species that Induce Progressive Cognitive Decline and Tau Pathology in Mice

Annals of Neurology, EarlyView.
Objective Traumatic brain injury (TBI) is an established risk factor for dementia, although the underlying mechanisms remain unclear. Our previous research demonstrated that a single severe TBI in wild‐type (WT) mice induces a prion‐like form of tau (tauTBI) that spreads throughout the brain, leading to memory deficits.
Gloria Vegliante, Francesca Pischiutta, Elena Restelli, Federico Moro, Maria Antonietta Chiaravalloti, Ilaria Raimondi, Ilaria Bertani, Ilaria Lisi, Eliana Sammali, Rosaria Pascente, Serena Scozzari, Laura Pasetto, Carly Douglas, Marco Locatelli, Fabrizio Ortolano, Valentina Bonetto, David J. Loane, Nino Stocchetti, Roberto Chiesa, Elisa R. Zanier   +19 more
wiley   +1 more source

Examining the upper frequency limit of dynamic cerebral autoregulation: Considerations across the cardiac cycle during eucapnia

Experimental Physiology
There are differences within the literature regarding the upper frequency cut‐off point of the dynamic cerebral autoregulation (CA) high‐pass filter. The projection pursuit regression approach has demonstrated that the upper frequency limit is ∼0.07 Hz ...
Joel S. Burma, Matthew G. Neill, Elizabeth K. S. Fletcher, Brooke E. Dennett, Nathan E. Johnson, Raelyn Javra, James K. Griffiths, Jonathan D. Smirl   +7 more
doaj   +1 more source

Neuroimaging assessment of cerebrovascular reactivity in concussion: current concepts, methodological considerations and review of the literature

Frontiers in Neurology, 2016
Concussion is a form of traumatic brain injury (TBI) that presents with a wide spectrum of subjective symptoms and few objective clinical findings. Emerging research suggests that one of the processes that may contribute to concussion pathophysiology is ...
Michael John Ellis, Michael John Ellis, Lawrence eRyner, Lawrence eRyner, Olivia eSobczyk, Olivia eSobczyk, Jorn eFierstra, David eMikulis, David eMikulis, Joseph Arnold Fisher, Joseph Arnold Fisher, James eDuffin, James eDuffin, W. Alan C. Mutch, W. Alan C. Mutch   +14 more
doaj   +1 more source