Comparing two captive bolt devices on market age Pekin ducks
Journal of Applied Poultry Research, 2021 Summary: The objective of this study was to determine the efficacy of 2 captive bolt devices in the euthanasia of market age Pekin ducks. One hundred twenty ducks were euthanized using either a commercially available captive bolt device (Zephyr-EXL, n ...
A.M. Stiewert, G.S. Archer
doaj +1 more source
RdgB2 is required for dim-light input into intrinsically photosensitive retinal ganglion cells. [PDF]
, 2015 A subset of retinal ganglion cells is intrinsically photosensitive (ipRGCs) and contributes directly to the pupillary light reflex and circadian photoentrainment under bright-light conditions.
Berson, David M +8 more
core +2 more sources
Monitoring Cognitive and Emotional Processes Through Pupil and Cardiac Response During Dynamic Versus Logical Task [PDF]
, 2010 The paper deals with the links between physiological measurements and cognitive and emotional functioning. As long as the operator is a key agent in charge of complex systems, the definition of metrics able to predict his performance is a great challenge.
A Bechara +40 more
core +3 more sources
The pupillary light response reveals the focus of covert visual attention. [PDF]
PLoS ONE, 2013 The pupillary light response is often assumed to be a reflex that is not susceptible to cognitive influences. In line with recent converging evidence, we show that this reflexive view is incomplete, and that the pupillary light response is modulated by ...
Sebastiaan Mathôt +3 more
doaj +1 more source
Measuring the Pupillary Light Reflex Using Portable Instruments in Applied Settings
VisionThe early components of the pupillary light reflex (PLR) are governed by the parasympathetic nervous system. The use of cheap, portable pupillometry devices may allow for the testing of parasympathetic-system health in field settings.
Nicola S. Gray +5 more
semanticscholar +1 more source
JAMA ophthalmology, 2020 Importance Concussion diagnosis remains clinical, without objective diagnostic tests available for adolescents. Known deficits in visual accommodation and autonomic function after concussion make the pupillary light reflex (PLR) a promising target as an ...
Christina L. Master +8 more
semanticscholar +1 more source
Investigation of light-induced lacrimation and pupillary responses in episodic migraine.
PLoS ONE, 2020 The purpose of this pilot study was to investigate the light-induced pupillary and lacrimation responses mediated by intrinsically photosensitive retinal ganglion cells (ipRGCs) in migraine.
Marija Zivcevska +5 more
doaj +1 more source
Pupillary light reflex in ethambutol-induced optic neuropathy
Scientific Reports, 2020 We evaluated changes in the pupillary light reflex (PLR) of ethambutol (EMB)-induced optic neuropathy and analyzed the correlations between PLR parameters and other structural changes in EMB-induced optic neuropathy.
Yung-Ju Yoo +2 more
doaj +1 more source
Use of the Neurological Pupil Index to Predict Postoperative Visual Function After Resection of a Tuberculum Sellae Meningioma: A Case Report. [PDF]
, 2019 The Neurological Pupil index (NPi) is a standardized method for evaluating pupil reactivity that removes inter-examiner variability. Changes in the NPi can predict clinical deterioration in patients with traumatic brain injury (TBI); however, its use to ...
Raygor, Kunal P +1 more
core +1 more source
Pain-related Somato Sensory Evoked Potentials: A potential new tool to improve the prognostic prediction of coma after cardiac arrest [PDF]
, 2015 INTRODUCTION: Early prediction of a good outcome in comatose patients after cardiac arrest still remains an unsolved problem. The main aim of the present study was to examine the accuracy of middle-latency SSEP triggered by a painful electrical ...
Aric\uf2, Maria +9 more
core +2 more sources