Results 71 to 80 of about 17,532 (204)

Pupillary Light Reflex is Altered in Adolescent Depression

Physiological Research, 2017
Major depressive disorder is associated with abnormal autonomic regulation which could be noninvasively studied using pupillometry. However, the studies in adolescent patients are rare. Therefore, we aimed to study the pupillary light reflex (PLR), which could provide novel important information about dynamic balance between sympathetic and ...
A, Mestanikova, I, Ondrejka, M, Mestanik, D, Cesnekova, Z, Visnovcova, I, Bujnakova, M, Oppa, A, Calkovska, I, Tonhajzerova   +8 more
openaire   +2 more sources

The value of pupillary diameter in evaluating pain perception after awakening in patients undergoing general anesthesia during orthopedic surgery

BMC Anesthesiology
Background The pupillary response to tetanic electrical stimulation reflects the balance between nociceptive stimulation and analgesia. Although pupillary pain index (PPI) was utilized to predict postoperative pain, it depended on tetanic stimulation and
Huang Huang, Yinuo Qiu, Guoxin Gu, Xiangyang Mei, Liwei Pang, Chuangxin Zhang, Mingzi Ran, Mengmeng Li   +7 more
doaj   +1 more source

Human pupillary light reflex during successive irradiation with 1-ms blue- and green-pulsed light

Journal of Physiological Anthropology, 2017
Background In the human retina, the contribution of intrinsically photosensitive retinal ganglion cells (ipRGCs) to the regulation of the pupillary response remains poorly understood.
Soomin Lee, Naoko Muto, Yoshihiro Shimomura, Tetsuo Katsuura   +3 more
doaj   +1 more source

Anton’s syndrome [PDF]

, 2013
57-year-old male admitted to ITU with a severe Community Acquired Pneumonia. Stayed in ITU for about three weeks and during this period suffered an episode of deterioration which was attributed to multiple venous infarcts of the brain.
Portelli, Luke
core  

Determination of Rod and Cone Influence to the Early and Late Dynamic of the Pupillary Light Response. [PDF]

, 2016
PURPOSE: This study aims to identify which aspects of the pupil light reflex are most influenced by rods and cones independently by analyzing pupil recordings from different mouse models of photoreceptor deficiency. METHODS: One-month-old wild type (WT),
Arsenijevic, Y., Biel, M., Crippa, S.V., Kardon, R.H., Kawasaki, A., Kostic, C., Martin, C.   +6 more
core   +1 more source

The effect of opioids on the light-off pupillary reflex

Journal of Anesthesia, Analgesia and Critical Care
Objective We examined the relationship between modeled opioid concentration and quantitative pupillary measures during remifentanil infusion sequences with particular attention to the “light-off” (LO) reflex. Methods Ten volunteer subjects were recruited
Rachel Eshima McKay, Merlín D. Larson
doaj   +1 more source

The pupillary response of cephalopods [PDF]

, 2005
This paper provides the first detailed description of the time courses of light-evoked pupillary constriction for two species of cephalopods, Sepia officinalis (a cuttlefish) and Eledone cirrhosa (an octopus).
Douglas, R. H., Wagner, H. J., Williamson, R.   +2 more
core   +1 more source

Cheetah Experimental Platform Web 1.0: Cleaning Pupillary Data [PDF]

, 2017
Recently, researchers started using cognitive load in various settings, e.g., educational psychology, cognitive load theory, or human-computer interaction. Cognitive load characterizes a tasks' demand on the limited information processing capacity of the
Maran, Thomas, Neurauter, Manuel, Pinggera, Jakob, Weber, Barbara, Zugal, Stefan   +4 more
core   +1 more source

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

A missense variant (P10L) of the melanopsin (OPN4) gene in seasonal affective disorder [PDF]

, 2009
Background: Melanopsin, a non-visual photopigment, may play a role in aberrant responses to low winter light levels in Seasonal Affective Disorder (SAD).
Duncan, WC, Lipsky, RH, Provencio, I, Roecklein, KA, Rohan, KJ, Rollag, MD, Rosenthal, NE   +6 more
core   +1 more source