Evidence map›Paper›PMID 32953246›Full record

ArticleTranslational vision science & technology2020

Dynamics of Contrast Decrement and Increment Responses in Human Visual Cortex.

Anthony M Norcia, Alexandra Yakovleva, Bethany Hung, Jeffrey L Goldberg

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

  1. Anomalous contrast as an adaptive violation of the Talbot-Plateau law.Documenta ophthalmologica. Advances in ophthalmology · 2026
    Article
  2. Cognition does not automatically influence perception: Evidence from neural encoding of colors belonging to different categories.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  11. Luminance Contrast Shifts Dominance Balance between ON and OFF Pathways in Human Vision.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  12. Preferential Loss of Contrast Decrement Responses in Human Glaucoma.Investigative ophthalmology & visual science · 2022
    Article
  13. Article
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  16. Frontiers in cellular neuroscience · 2021
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Anthony M NorciaDepartment of Psychology, Stanford University, Stanford, CA, USA.
Alexandra YakovlevaDepartment of Ophthalmology, Stanford University, Stanford, CA, USA.
Bethany HungJohns Hopkins University School of Medicine, Baltimore, MD, USA.
Jeffrey L GoldbergDepartment of Ophthalmology, Stanford University, Stanford, CA, USA.
Stanford University · USJohns Hopkins Medicine · US

Funding

Stanford Vision Research CoreP30EY026877 · NEI · STANFORD UNIVERSITY · PI Jeffrey L Goldberg · 2017 to 2026
$8.0M
Structural and functional tests of ganglion cell damage in glaucomaR01EY030361 · NEI · STANFORD UNIVERSITY · PI GOLDBERG, JEFFREY L, NORCIA, ANTHONY M · 2019 to 2022
$2.1M
NEI NIH HHS P30 EY026877NEI NIH HHS R01 EY030361
6 · The paper itself

Abstract

Purpose: The goal of the present experiments was to determine whether electrophysiologic response properties of the ON and OFF visual pathways observed in animal experimental models can be observed in humans. Methods: Steady-state visual evoked potentials (SSVEPs) were recorded in response to equivalent magnitude contrast increments and decrements presented within a probe-on-pedestal Westheimer sensitization paradigm. The probes were modulated with sawtooth temporal waveforms at a temporal frequency of 3 or 2.73 Hz. SSVEP response waveforms and response spectra for incremental and decremental stimuli were analyzed as a function of stimulus size and visual field location in 67 healthy adult participants. Results: SSVEPs recorded at the scalp differ between contrast decrements and increments of equal Weber contrast: SSVEP responses were larger in amplitude and shorter in latency for contrast decrements than for contrast increments. Both increment and decrement responses were larger for displays that were scaled for cortical magnification. Conclusions: In a fashion that parallels results from the early visual system of cats and monkeys, two key properties of ON versus OFF pathways found in single-unit recordings are recapitulated at the population level of activity that can be observed with scalp electrodes, allowing differential assessment of ON and OFF pathway activity in human. Translational Relevance: As data from preclinical models of visual pathway dysfunction point to differential damage to subtypes of retinal ganglion cells, this approach may be useful in future work on disease detection and treatment monitoring.

Indexed as

Visual CortexAdultAnimalsCatsEvoked Potentials, VisualHumansRetinal Ganglion CellsVisual FieldsVisual Pathwayslatencyluminance contrastOFF pathwayON pathwayvisual evoked potentials

Identifiers

PMID32953246
PMCPMC7476656
OpenAlexW3083057470

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.