Pupil tracks statistical regularities: behavioral and neural implications [PDF]
Journal of Integrative Neuroscience, 2020 Pupillary light reflex adjusts the amount of light reaching the retina. Recent work suggests that the brainstem pupillary light reflex pathway is controlled by the environment's internal models derived from higher-order temporal statistics.
Shamini Warda, Shubham Pandey
doaj +1 more source
Pupillary Responses to High-Irradiance Blue Light Correlate with Glaucoma Severity [PDF]
, 2014 PurposeTo evaluate whether a chromatic pupillometry test can be used to detect impaired function of intrinsically photosensitive retinal ganglion cells (ipRGCs) in patients with primary open-angle glaucoma (POAG) and to determine if pupillary responses ...
Alings, A. Marco +8 more
core +11 more sources
Fixed Pupillary Light Reflex due to Peripheral Neuropathy after Liver Transplantation [PDF]
Korean Journal of Critical Care Medicine, 2015 A 46-year-old female patient was admitted to the intensive care unit (ICU) after liver transplantation. About an hour later after the ICU admission, she had no pupillary light reflex. Both pupils were also fixed at 5 mm.
Kwan Hyung Kim +4 more
doaj +1 more source
A high-resolution binocular video-oculography system: assessment of pupillary light reflex and detection of an early incomplete blink and an upward eye movement [PDF]
, 2015 Background: The pupillary light reflex characterizes the direct and consensual response of the eye to the perceived brightness of a stimulus. It has been used as indicator of both neurological and optic nerve pathologies. As with other eye reflexes, this
Espinosa Tomás, Julián +3 more
core +4 more sources
Searching for Complexity in the Human Pupillary Light Reflex
Mathematics, 2020 This article aims to examine the dynamical characteristics of the pupillary light reflex and to provide a contribution towards their explanation based on the nonlinear theory of dynamical systems.
Rosário D. Laureano +3 more
doaj +1 more source
Understanding the effects of mild traumatic brain injury on the pupillary light reflex
Concussion, 2017 The pupillary light reflex represents an optimal visual system to investigate and exploit in the mild traumatic brain injury (mTBI) population.
Kenneth J Ciuffreda +2 more
doaj +2 more sources
An Innovative Technique to Evaluate Quantitative Pupillary Light Reflex by Dynamic Pupillometry using Infrared Videography [PDF]
Journal of Clinical and Diagnostic Research, 2019 Introduction: An innovative approach was designed to quantify the pupillary light reflex using infrared and white light illumination. This method is convenient to detect pupil edges, area and the diameter of pupil contour recorded in different ambient ...
AV Siva kumar +4 more
doaj +1 more source
The pupillary light reflex distinguishes between circadian and non-circadian delayed sleep phase disorder (DSPD) phenotypes in young adults. [PDF]
PLoS ONE, 2018 This study investigated the utility of the pupillary light reflex as a method of differentiating DSPD patients with delayed melatonin timing relative to desired/required sleep time (circadian type) and those with non-delayed melatonin timing (non ...
Elise M McGlashan +6 more
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