ReviewFrontiers in neurology2018
Functional Organization of the Sympathetic Pathways Controlling the Pupil: Light-Inhibited and Light-Stimulated Pathways.
Review in Frontiers in neurology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
70 citing papers in PubMed, 2 syntheses or guidelines pooled it, 141 citations in OpenAlex.
- A Systematic Review of Direct Outputs from the Cerebellum to the Brainstem and Diencephalon in Mammals.Cerebellum (London, England) · 2024Pooled it
- Effect of nonpharmacological interventions on poststroke depression: a network meta-analysis.Frontiers in neurology · 2024Pooled it
- Blue enriched light modulates pupil dilation induced by transcutaneous vagus nerve stimulation.Scientific reports · 2025Trial
- Pupillometric alterations in Graves' disease: Beyond thyroid functional status.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026Article
- Additive framework of hormonal waves accounts for species and age differences in circadian intraocular pressure rhythm.Npj biological timing and sleep · 2026Article
- Brain-first versus body-first Parkinson's disease: Differential findings on pupillary, brainstem and vagus sonography.Journal of neurology · 2026Article
- Ocular Adverse Events Associated With Antidepressants: A Large-Scale Data Analysis From the FAERS Database.CNS neuroscience & therapeutics · 2026Article
- Review
- Characterizing Initial Cervical Spine and Neurovascular Findings in 84 Consecutive Patients with Hypermobile Ehlers-Danlos Syndrome: A Retrospective Study.Journal of clinical medicine · 2026Article
- Pupillometry as a Novel Tool for Pain Monitoring: Evaluating the Antinociceptive Effect of Intravenous Lidocaine During Orotracheal Intubation.Journal of clinical medicine · 2026Article
- Pupillary Hippus as a Biomarker: Spectral Signatures and Complexity Approaches in Autonomic and Clinical Contexts.Bioengineering (Basel, Switzerland) · 2025Review
- Dangerous Alarming Diameter Assessment (DADA Index) in Which the Ratio of Iris Surface/Pupil Surface Size Is More Reliable than Pupil Diameter Measurement in Comatose Patients After Subarachnoid Haemorrhage: An Experimental Rabbit Model.Diagnostics (Basel, Switzerland) · 2025Article
- A pupillary and eye movement investigation of functional deficits in multiple object tracking following mild traumatic brain injury.Journal of vision · 2025Article
- Autonomic Nervous System, Cognition, and Emotional Valence During Different Phases of the Menstrual Cycle-A Narrative Review.NeuroSci · 2025Review
- Article
- Light quality and time in shelter modulate behavior and cortisol in the domestic cat (iScience · 2025Article
- Krukenberg's Spindle-Like Corneal Changes in a Patient With Prolonged ICU Admission: A Case Report.Cureus · 2025Article
- The pupillary respiratory-phase response: pupil size is smallest around inhalation onset and largest during exhalation.The Journal of physiology · 2025Article
- Frequency tagged multifocal pupillary response fields identify age-related macular degeneration and diabetic retinopathy.Frontiers in neuroscience · 2025Article
- Objective test findings in patients with chronic eye symptoms seeking care at an outpatient neck center: ligamentous cervical instability etiology?Frontiers in neurology · 2025Article
10 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pupil dilation is mediated by a sympathetic output acting in opposition to parasympathetically mediated pupil constriction. While light stimulates the parasympathetic output, giving rise to the light reflex, it can both inhibit and stimulate the sympathetic output. Light-inhibited sympathetic pathways originate in retina-receptive neurones of the pretectum and the suprachiasmatic nucleus (SCN): by attenuating sympathetic activity, they allow unimpeded operation of the light reflex. Light stimulates the noradrenergic and serotonergic pathways. The hub of the noradrenergic pathway is the locus coeruleus (LC) containing both excitatory sympathetic premotor neurones (SympPN) projecting to preganglionic neurones in the spinal cord, and inhibitory parasympathetic premotor neurones (ParaPN) projecting to preganglionic neurones in the Edinger-Westphal nucleus (EWN). SympPN receive inputs from the SCN via the dorsomedial hypothalamus, orexinergic neurones of the latero-posterior hypothalamus, wake- and sleep-promoting neurones of the hypothalamus and brain stem, nociceptive collaterals of the spinothalamic tract, whereas ParaPN receive inputs from the amygdala, sleep/arousal network, nociceptive spinothalamic collaterals. The activity of LC neurones is regulated by inhibitory α
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.