Results 11 to 20 of about 7,984 (228)

Pupillometry in Infancy Research [PDF]

Journal of Cognition and Development, 2016
The human pupil is a small opening in each eye that dilates in response not only to changes in luminance, but also to novel events. Therefore, changes in pupil diameter are an attractive measure in studies on infants’ and young children’s physical and social cognition.
Hepach, Robert, Westermann, Gert
openaire   +3 more sources

Dynamically Normalized Pupillometry for Detecting Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage [PDF]

Critical Care Explorations
OBJECTIVES:. Delayed cerebral ischemia (DCI) is a major driver of morbidity after aneurysmal subarachnoid hemorrhage (aSAH). Quantitative pupillometry has been shown to be of prognostic value after acute neurological injury. However, the evidence for the
Julian Klug, MD, Joana Martins, MD, Ignazio De Trizio, MD, Emmanuel Carrera, MD, Miodrag Filipovic, MD, Isabel Charlotte Hostettler, MD, PhD, Urs Pietsch, MD   +6 more
doaj   +2 more sources

Chromatic Pupillometry in Children [PDF]

Frontiers in Neurology, 2018
Chromatic pupillometry is a technique that is increasingly used to assess retinal disorders. As age may be one of the various factors which can influence the pupillary light reaction, this study aimed to evaluate the pupil responses to colored light stimuli in the pediatric population.
Sylvain V. Crippa, Sylvain V. Crippa, Fatima Pedrosa Domellöf, Aki Kawasaki   +3 more
openaire   +6 more sources

The confounding effects of eye blinking on pupillometry, and their remedy.

PLoS ONE, 2021
Pupillometry, thanks to its strong relationship with cognitive factors and recent advancements in measuring techniques, has become popular among cognitive or neural scientists as a tool for studying the physiological processes involved in mental or ...
Kyung Yoo, Jeongyeol Ahn, Sang-Hun Lee
doaj   +1 more source

Pupillometry as a reliable metric of auditory detection and discrimination across diverse stimulus paradigms in animal models

Scientific Reports, 2021
Estimates of detection and discrimination thresholds are often used to explore broad perceptual similarities between human subjects and animal models.
Pilar Montes-Lourido, Manaswini Kar, Isha Kumbam, Srivatsun Sadagopan   +3 more
doaj   +1 more source

From pupil to the brain: New insights for studying cortical plasticity through pupillometry

Frontiers in Neural Circuits, 2023
Pupil size variations have been associated with changes in brain activity patterns related with specific cognitive factors, such as arousal, attention, and mental effort.
Aurelia Viglione, Raffaele Mazziotti, Tommaso Pizzorusso, Tommaso Pizzorusso   +3 more
doaj   +1 more source

Pupillometry in auditory multistability

PLOS ONE, 2021
In multistability, a constant stimulus induces alternating perceptual interpretations. For many forms of visual multistability, the transition from one interpretation to another (“perceptual switch”) is accompanied by a dilation of the pupil. Here we ask whether the same holds for auditory multistability, specifically auditory streaming. Two tones were
Jan Grenzebach, Thomas G. G. Wegner, Wolfgang Einhäuser, Alexandra Bendixen   +3 more
openaire   +4 more sources

Quantitative pupillometry for neuroprognostication in comatose post-cardiac arrest patients: A protocol for a predefined sub-study of the Blood pressure and Oxygenations Targets after Out-of-Hospital Cardiac Arrest (BOX)-trial

Resuscitation Plus, 2023
Background: Resuscitation guidelines propose a multimodal prognostication strategy algorithm at ≥72 hours after the return of spontaneous circulation to evaluate neurological outcome for unconscious cardiac arrest survivors.
Benjamin Nyholm, Johannes Grand, Laust Emil Roelsgaard Obling, Christian Hassager, Jacob Eifer Møller, Henrik Schmidt, Marwan H. Othman, Daniel Kondziella, Jesper Kjaergaard   +8 more
doaj   +1 more source

Comparison of pupillometry measurements in myopic, emmetropic and hyperopic children [PDF]

, 2021
To compare spherical and cylindrical equivalent, and pupillometry measurements between non-amblyopic myopic, emmetropic, and hyperopic children. The study was conducted prospectively and cross-sectionally in a single-centered eye clinic.
Kurt, Muhammed Mustafa, Bayat, Alper Halil, Akpolat, Çetin   +2 more
core   +1 more source

Development of reference intervals for pupillometry in healthy dogs

Frontiers in Veterinary Science, 2022
BackgroundPupillometry, the measurement of pupil size and reactivity to a stimulus, has various uses in both human and veterinary medicine. These reflect autonomic tone, with the potential to assess nociception and emotion.
Erinn P. Mills, Kelli Combs-Ramey, Grace P. S. Kwong, Grace P. S. Kwong, Daniel S. J. Pang, Daniel S. J. Pang   +5 more
doaj   +1 more source