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Bulgarian 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 ...
Cherninkova, S.; University Hospital Aleksandrovska ‒ Sofia
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Unilateral Adie's tonic pupil and viral hepatitis: Report of two cases [PDF]
Srpski 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
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Phasic and tonic arousal distinctly shape human decision bias [PDF]
Communications BiologyNeuroscientific theories hypothesize that arousal fluctuations influence human perception and behavior in two functionally distinct ways: through variations in baseline state (tonic arousal) and by transient task-evoked bursts (phasic arousal).
Stijn Adriaan Nuiten +5 more
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Investigating the test–retest reliability and behavioral correlates of pupil responses in the n-back task [PDF]
Scientific ReportsMeasurement of pupil size changes is a promising method to investigate information processing. Our study contributes to this stream of research (1) by investigating whether pupillary changes during performing a demanding working memory (n-back) task are ...
Gábor László Bényei, Péter Pajkossy
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Brain StimulationBackground: Transcutaneous auricular vagus nerve stimulation (tVNS or taVNS) is a non-invasive method of electrical stimulation of the afferent pathway of the vagus nerve, suggested to drive changes in putative physiological markers of noradrenergic ...
Lina Skora +2 more
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Blue enriched light modulates pupil dilation induced by transcutaneous vagus nerve stimulation [PDF]
Scientific ReportsTranscutaneous vagus nerve stimulation (tVNS) targets the auricular branch of the vagus nerve and can modulate brainstem arousal systems, including the locus coeruleus–noradrenaline (LC-NE) pathway.
Inci Cakiroglu +7 more
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Tonic Pupil Following Pars Plana Vitrectomy and Endolaser [PDF]
Case Reports in Medicine, 2009 Tonic pupil was observed in a 67 year-old patient following a retinal detachment repair with pars plana vitrectomy, endolaser and silicone oil tamponade performed under retrobulbar anesthesia.
Benyamin Ebrahim +3 more
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Pupil dynamics reveal preparatory processes in the generation of pro-saccades and anti-saccades in open skill sports athletes [PDF]
Biology of SportThis study investigated pupil dynamics to establish a physiological index of mental processes associated with executive functioning, enabling objective evaluation of cognitive load during training to improve understanding of cognitive control in sport ...
Jui-Tai Chen +3 more
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Abnormal pupils at the bedside: rapid recognition of neurologic and systemic emergencies in acute care settings [PDF]
International Journal of Emergency MedicineBackground Pupillary abnormalities are critical bedside findings that may indicate both benign physiologic variation and life-threatening neurologic emergencies.
Dawn C. Penney +2 more
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Concurrent tonic pupil and trochlear nerve palsy in COVID-19 [PDF]
Journal of NeuroVirology, 2020 CARLOS M Ordas
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