Results 11 to 20 of about 27,403 (299)

The diagnostic significance of pupillary reflex pathways: insights from classical examination and advanced pupillometry [PDF]

open access: yesFrontiers in Neuroscience
Background/objectivesThe pupil, a dynamic ocular structure, serves as a critical indicator of neurological and ophthalmological function. This interdisciplinary review explores the anatomical, physiological, and pathological aspects of pupillary reflexes
Łukasz Lisowski   +5 more
doaj   +2 more sources

Zoom behavior during visual search modulates pupil diameter and reflects adaptive control states

open access: yesPLoS ONE, 2023
Adaptive gain theory proposes that the dynamic shifts between exploration and exploitation control states are modulated by the locus coeruleus-norepinephrine system and reflected in tonic and phasic pupil diameter.
Tad T. Brunyé   +6 more
doaj   +2 more sources

Tonic pupil in leprosy [PDF]

open access: yesArquivos Brasileiros de Oftalmologia, 2014
Pupil abnormalities in leprosy usually result from chronic iritis with loss of stroma, iris miosis, a sluggish reaction to light, and poor dilation in response to anticholinergic mydriatics. We report two patients with long-standing lepromatous leprosy who developed tonic pupils characterized by mydriasis, absence of reaction to light and ...
Marco Aurélio, Lana-Peixoto   +4 more
openaire   +5 more sources

A pupillometric investigation of state regulation in adults scoring high versus low on ADHD symptomatology

open access: yesActa Psychologica, 2023
According to the state regulation deficit (SRD) account, ADHD is associated with difficulties regulating tonic arousal levels, which may be due to inefficient effort allocation. We aimed to test the SRD account by using a target detection task with three
Leonhard H. Drescher   +2 more
doaj   +1 more source

Unilateral Adie's tonic pupil and viral hepatitis: Report of two cases [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2015
Introduction. Adie’s (tonic) pupil is a neuro-ophthalmological disorder characterized by a tonically dilated pupil, which is unresponsive to light.
Karadžić Jelena   +2 more
doaj   +1 more source

Adie-Holmes syndrome associated with COVID-19 infection: A case report

open access: yesIndian Journal of Ophthalmology, 2021
With increasing experience, it has been suggested that the SARS-CoV-2 virus has a neurotropic effect. Here, we present a case of a tonic pupil who developed after COVID-19 infection.
Nurhan Kaya Tutar   +2 more
doaj   +1 more source

Adie’s Tonic Pupil

open access: yesTürk Nöroloji Dergisi, 2009
Berker Bakbak, Hava Dönmez
doaj   +1 more source

Mind the social feedback : effects of tDCS applied to the left DLPFC on psychophysiological responses during the anticipation and reception of social evaluations [PDF]

open access: yes, 2022
The left dorsolateral prefrontal cortex (lDLPFC) is implicated in anticipatory (i.e. during anticipation of emotional stimuli) and online (i.e. during confrontation with emotional stimuli) emotion regulatory processes. However, research that investigates
Allaert, Jens   +4 more
core   +2 more sources

Tonic Pupil

open access: yesBulgarian Review of Ophthalmology, 2022
Twenty cases with isolated (local) tonic pupil due to involvement of the postganglionic parasympathetic fibers are reported. The typical syndrome of a tonic pupil with the following clinical signs is described: (1) a mydriatic pupil with a poor or absent reaction to light, (2) a normal, strong and tonic reaction to near stimuli with tonic and delayed ...
openaire   +2 more sources

The impact of luminance on tonic and phasic pupillary responses to sustained cognitive load [PDF]

open access: yes, 2017
Pupillary reactions independent of light conditions have been linked to cognition for a long time. However, the light conditions can impact the cognitive pupillary reaction.
Dehais, Frédéric   +2 more
core   +2 more sources

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