Evidence map›Paper›PMID 31846672›Full record

ArticleCurrent biology : CB2019

No evidence for an S cone contribution to acute neuroendocrine and alerting responses to light.

Manuel Spitschan, Rafael Lazar, Ebru Yetik, Christian Cajochen

Open access · hybridAbstract readLetterComment
In one paragraph

Article in Current biology : CB, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
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  7. Toward an Indoor Lighting Solution for Social Jet Lag.Journal of biological rhythms · 2024
    Article
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  12. Human-Centric Lighting Research and Policy in the Melanopsin Age.Policy insights from the behavioral and brain sciences · 2023
    Article
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  14. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Manuel SpitschanDepartment of Experimental Psychology, University of Oxford, Oxford OX2 6GG, UK; Centre for Chronobiology, Psychiatric Hospital of the University of Basel (UPK), 4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland. Electronic address: manuel.spitschan@psy.ox.ac.uk.
Rafael LazarCentre for Chronobiology, Psychiatric Hospital of the University of Basel (UPK), 4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland.
Ebru YetikCentre for Chronobiology, Psychiatric Hospital of the University of Basel (UPK), 4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland.
Christian CajochenCentre for Chronobiology, Psychiatric Hospital of the University of Basel (UPK), 4002 Basel, Switzerland; Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland.
University of Basel · CHUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposure to even moderately bright short-wavelength light in the evening can strongly suppress the production of melatonin and delay our circadian rhythm. These effects are mediated by the retinohypothalamic pathway, connecting a subset of retinal ganglion cells to the circadian pacemaker in the suprachiasmatic nucleus (SCN) in the brain. These retinal ganglion cells express the photosensitive protein melanopsin, rendering them intrinsically photosensitive (ipRGCs). But ipRGCs also receive input from the classical photoreceptors - the cones and rods. Here, in human participants, we examined whether the short-wavelength-sensitive (S) cones contribute to the neuroendocrine response to light by using stimuli which differed exclusively in the amount of S cone excitation by almost two orders of magnitude (ratio 1:83), but not in the excitation of long-wavelength-sensitive (L) and medium-wavelength-sensitive (M) cones, rods, and melanopsin. We specifically examined the S cones since the previously published action spectra for melatonin suppression [1,2] pointed to a possible role of S cones in addition to melanopsin. We find no evidence for a role of S cones in the acute alerting and melatonin-supressing response to evening light exposure.

Indexed as

LightRetinal Cone Photoreceptor CellsAnimalsCircadian RhythmColorHumansMiceRetinal Ganglion CellsRetinal Rod Photoreceptor CellsRod OpsinsRod Opsins

Identifiers

PMID31846672
PMCPMC6926470
OpenAlexW2996398619

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.