Results 11 to 20 of about 5,698 (205)

Abnormal pupils at the bedside: rapid recognition of neurologic and systemic emergencies in acute care settings [PDF]

open access: yesInternational Journal of Emergency Medicine
Background Pupillary abnormalities are critical bedside findings that may indicate both benign physiologic variation and life-threatening neurologic emergencies.
Dawn C. Penney   +2 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

Intervention of Adie's tonic pupil with iris tinted contact lenses with clear pupil - Case report

open access: yesIndian Journal of Ophthalmology. Case Reports, 2022
We report the optometric management of a 27-year-old female diagnosed with Adie's tonic pupil who was otherwise systemically stable. This case report is an effort to understand how tonic pupil management with iris tinted clear pupil contact lenses helps ...
Hiral J Korani   +2 more
doaj   +1 more source

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

Isometric exercise facilitates attention to salient events in women via the noradrenergic system

open access: yesNeuroImage, 2020
The locus coeruleus (LC) regulates attention via the release of norepinephrine (NE), with levels of tonic LC activity constraining the intensity of phasic LC responses.
Mara Mather   +7 more
doaj   +1 more source

Bilateral Adie’s Tonic Pupil

open access: yesTürk Oftalmoloji Dergisi, 2013
A 37-year-old male patient applied with the complaint of photophobia and having difficulties in reading. Both pupils were found to be dilated and unreactive to light but responsive to accommodation.
Berker Bakbak   +4 more
doaj   +1 more source

Attentional Disengagement and the Locus Coeruleus – Norepinephrine System in Children With Autism Spectrum Disorder

open access: yesFrontiers in Integrative Neuroscience, 2021
BackgroundDifferences in non-social attentional functions have been identified as among the earliest features that distinguish infants later diagnosed with autism spectrum disorder (ASD), and may contribute to the emergence of core ASD symptoms ...
Brandon Keehn   +5 more
doaj   +1 more source

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