Results 41 to 50 of about 12,323 (220)

Video ocular counter roll: A bedside test of otolith‐ocular function

Annals of Clinical and Translational Neurology, 2023
Here we review the clinical value of a video‐oculography test for clinical evaluation of vestibular otolith function. This test is known as the video ocular counter roll (vOCR) and is based on measurement of torsional vestibulo‐ocular reflex with a ...
Yuchen Yang, Jing Tian, Jorge Otero‐Millan, Amir Kheradmand   +3 more
doaj   +1 more source

Three-dimensional vestibular eye and head reflexes of the chameleon: characteristics of gain and phase and effects of eye position on orientation of ocular rotation axes during stimulation in yaw direction [PDF]

, 2018
We investigated gaze-stabilizing reflexes in the chameleon using the three-dimensional search-coil technique. Animals were rotated sinusoidally around an earth-vertical axis under head-fixed and head-free conditions, in the dark and in the light.
Frens, M., Haker, H., Henn, V., Hess, K., Misslisch, H., Ott, M., Sándor, P.   +6 more
core  

The Neuroanatomical Correlates of Training-Related Perceptuo-Reflex Uncoupling in Dancers [PDF]

, 2013
Sensory input evokes low-order reflexes and higher-order perceptual responses. Vestibular stimulation elicits vestibular-ocular reflex (VOR) and self-motion perception (e.g., vertigo) whose response durations are normally equal.
Hellyer, PJ, Nachev, P, Nigmatullina, Y, Seemungal, BM, Sharp, DJ   +4 more
core   +1 more source

Recompression Improves Release Success in Pollack (Pollachius pollachius): A Step Towards Assessing Post Release Mortality in a Recreational Fishery

Fisheries Management and Ecology, EarlyView.
ABSTRACT The recreational fishery for pollack (Pollachius pollachius) in the northeast Atlantic is impacted by the species' high sensitivity to barotrauma. When captured at depth and brought to the surface, gas expansion within the peritoneal cavity can cause a variety of injuries and hinder release.
T. Stamp, R. Mawer, R. Conlon, A. E. Hall, P. Davies, R. Nesbit, D. Uren, T. Morris, S. Sullivan, S. Thomas, B. D. Stewart, H. Rudd, K. Hyder, T. Osmond, S. Reynell, E. V. Sheehan   +15 more
wiley   +1 more source

Hybrid Model of the Context Dependent Vestibulo-Ocular Reflex: Implications for Vergence-Version Interactions

Frontiers in Computational Neuroscience, 2015
The vestibulo-ocular reflex (VOR) is an involuntary eye movement evoked by head movements. It is also influenced by viewing distance. This paper presents a hybrid nonlinear bilateral model for the horizontal angular vestibulo-ocular reflex (AVOR) in the ...
Mina eRanjbaran, Henrietta eGaliana
doaj   +1 more source

Central adaptation to repeated galvanic vestibular stimulation: implications for pre-flight astronaut training. [PDF]

PLoS ONE, 2014
Healthy subjects (N = 10) were exposed to 10-min cumulative pseudorandom bilateral bipolar Galvanic vestibular stimulation (GVS) on a weekly basis for 12 weeks (120 min total exposure).
Valentina Dilda, Tiffany R Morris, Don A Yungher, Hamish G MacDougall, Steven T Moore   +4 more
doaj   +1 more source

Downbeat nystagmus: aetiology and comorbidity in 117 patients [PDF]

, 2008
Objectives: Downbeat nystagmus (DBN) is the most common form of acquired involuntary ocular oscillation overriding fixation. According to previous studies, the cause of DBN is unsolved in up to 44% of cases.
Brandt, Thomas, Glaser, Mirjam, Strupp, Michael, Wagner, Judith N.   +3 more
core   +1 more source

Fish welfare in a changing world: New developments and current challenges

Journal of Fish Biology, EarlyView.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas, João L. Saraiva, Eliane Gonçalves‐de‐Freitas, Pablo Arechavala‐Lopez, Bernice Bovenkerk, Michael Breen, Steven J. Cooke, Martin Føre, Lene Northwood, Lars Helge Stien, Sunil Kadri, Chris Noble, Jonatan Nilsson, Fernando Rodriguez, Cosme Salas, Peter Sandøe, Hans van de Vis   +16 more
wiley   +1 more source

Volitional control of anticipatory ocular smooth pursuit after viewing, but not pursuing, a moving target: evidence for a re-afferent velocity store [PDF]

, 1997
Although human subjects cannot normally initiate smooth eye movements in the absence of a moving target, previous experiments have established that such movements can be evoked if the subject is required to pursue a regularly repeated, transient target ...
Barnes, G, Collins, S, Grealy, M
core   +1 more source

Welfare and Physiological Consequences of Non‐Lethal Blood Sampling From the Caudal Vasculature of Atlantic Salmon (Salmo salar L.)

Journal of Fish Diseases, EarlyView.
ABSTRACT The objective of this study was to evaluate welfare and health effects following single and repeated non‐lethal blood sampling from the caudal vasculature of Atlantic salmon. Two experiments were conducted at three different temperatures: a 6‐week freshwater experiment with fish weighing 50–100 g, undergoing up to four blood withdrawals, and a
Harriet Romstad, Camilla Karlsen, Silje Stensby‐Skjærvik, Alf Seljenes Dalum, Maria Banaszkiewicz, Simen Foyn Nørstebø, Jessica Louise Ray, Hege Lund, Torstein Kristensen, Christine Klykken   +9 more
wiley   +1 more source