Evidence map›Paper›PMID 29623523›Full record

ArticleDocumenta ophthalmologica. Advances in ophthalmology2018

Visual evoked potentials can be reliably recorded using noninvasive epidermal electrodes in the anesthetized rat.

Roberto Santangelo, Valerio Castoldi, Raffaele D'Isa, Silvia Marenna, Su-Chun Huang, Marco Cursi, Giancarlo Comi, Letizia Leocani

Abstract read
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In one paragraph

Article in Documenta ophthalmologica. Advances in ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.8field-weighted citation impact, top 35% 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

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Tail-rattling in rodents: more than a threat display.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
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  9. Semi-invasive and non-invasive recording of visual evoked potentials in mice.Documenta ophthalmologica. Advances in ophthalmology · 2019
    Article
  10. Functional evolution of visual involvement in experimental autoimmune encephalomyelitis.Multiple sclerosis journal - experimental, translational and clinical
    Article
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

8 authors at 2 institutions in 1 country.

Roberto SantangeloDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Valerio CastoldiDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Raffaele D'IsaDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Silvia MarennaDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Su-Chun HuangDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Marco CursiDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Giancarlo ComiDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
Letizia LeocaniDepartment of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy. letizia.leocani@hsr.it.
Istituti di Ricovero e Cura a Carattere Scientifico · ITVita-Salute San Raffaele University · IT

Funding

Project IVASCOMAR (identification, validation and development of diagnostic and prognostic biomarkers of neurodegenerative diseases) of the Italian Ministry of Education, University and Research CTN01_00177_165430
6 · The paper itself

Abstract

purposeVisual evoked potentials (VEPs) are a powerful tool to evaluate nervous conduction along the visual pathways, both in humans and in animal models. Traditionally, epidural screw electrodes are used to record VEPs in preclinical research. Here we tested the feasibility in the preclinical setting of the same noninvasive technique used for clinical VEP acquisition, by using epidermal cup electrodes with no surgical procedures.

methodsMonocular flash VEPs were recorded bilaterally under sevoflurane anesthesia once a week for 6 weeks in 14 dark Agouti rats, 7 with implanted epidural screws and 7 with epidermal 6 mm Ø Ag/AgCl cups.

resultsVEP traces obtained with the two techniques were morphologically comparable. There were no significant differences in latency of the main visual component between screw-recorded VEPs (sVEPs) and cup-recorded VEPs (cVEPs). Amplitude values with epidermal cups were significantly lower than those with epidural screws. Both techniques provided latencies and amplitudes which were stable over time. Furthermore, with regard to latency both methods ensured highly repeatable measurements over time, with epidermal cups even providing slightly better results. On the other hand, considering amplitudes, cVEPs and sVEPs provided fairly acceptable repeatability.

conclusionsEpidermal cup electrodes can provide comparable results to those obtained with the "gold standard" epidural screws, while representing a simpler and less invasive technique to test nervous conduction along the visual pathways in the preclinical setting.

Indexed as

Anesthetics, InhalationAnimalsElectrodesElectroretinographyEpidermisEvoked Potentials, VisualFemaleMethyl EthersPhotic StimulationRatsSevofluraneVisual PathwaysAnesthetics, InhalationMethyl EthersSevofluraneAnimal welfareEpidermal cup electrodesEpidural screw electrodesNoninvasive electrophysiologyPreclinical visual pathway assessmentVisual evoked potentials

Identifiers

PMID29623523
OpenAlexW2795991336

What Socratic holds

Textmetadata
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 Socratic graph.