Results 11 to 20 of about 15,637 (242)

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   +2 more sources

ERP and Pupillometry Synchronization Analysis on Rapid Serial Visual Presentation of Words, Numbers, Pictures

IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
Hybrid brain-computer interfaces (HBCI) combining eye-tracker has attracted the attentions of researchers in target recognition. However, there are still many issues to be addressed in rapid sequence visual presentation (RSVP) tasks, such as the effect ...
Xi Luo, Yanfei Lin, Rongxiao Guo, Xiaorong Gao, Shangen Zhang   +4 more
doaj   +2 more sources

Chromatic pupillometry for evaluating melanopsin retinal ganglion cell function in Alzheimer’s disease and other neurodegenerative disorders: a review

Frontiers in Psychology
The evaluation of pupillary light reflex (PLR) by chromatic pupillometry may provide a unique insight into specific photoreceptor functions. Chromatic pupillometry refers to evaluating PLR to different wavelengths and intensities of light in order to ...
Martina Romagnoli, Giulia Amore, Pietro Avanzini, Valerio Carelli, Valerio Carelli, Chiara La Morgia, Chiara La Morgia   +6 more
doaj   +2 more sources

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

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

Pupillometry: Psychology, Physiology, and Function

Journal of Cognition, 2018
Pupils respond to three distinct kinds of stimuli: they constrict in response to brightness (the pupil light response), constrict in response to near fixation (the pupil near response), and dilate in response to increases in arousal and mental effort, either triggered by an external stimulus or spontaneously.
S. Mathôt
openaire   +7 more sources

Eyes on Memory: Pupillometry in Encoding and Retrieval

Vision
This review critically examines the contributions of pupillometry to memory research, primarily focusing on its enhancement of our understanding of memory encoding and retrieval mechanisms mainly investigated with the recognition memory paradigm.
Alex Kafkas
doaj   +2 more sources

Methods in cognitive pupillometry: Design, preprocessing, and statistical analysis

bioRxiv, 2022
Cognitive pupillometry is the measurement of pupil size to investigate cognitive processes such as attention, mental effort, working memory, and many others.
S. Mathôt, Ana Vilotijević
semanticscholar   +1 more source

A Systematic Review and Meta‐Analysis of Postoperative Opioid Consumption, Pain and Complications Following Intraoperative Autonomic Nervous System‐Based Nociception Monitoring [PDF]

Eur J Pain
ABSTRACT Background Autonomic nervous system–based nociception monitors have been proposed to optimise intraoperative opioid administration. While they reduce intraoperative opioid use, evidence on postoperative outcomes remains limited. We conducted a systematic review and meta‐analysis to evaluate their effects on postoperative pain, opioid ...
Pietrancosta M, Martinez V.
europepmc   +2 more sources

A physiological marker of recognition memory in adults with autism spectrum disorder? The Pupil Old/New Effect [PDF]

, 2020
This study investigated the pupil Old/New effect in individuals with Autism Spectrum Disorder (ASD) and typical development (TD). Participants studied verbal and visual meaningful and meaningless materials in black and white on a computer screen.
Bowler, D. M., Gaigg, S. B., Ring, M.
core   +1 more source

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