Search research articles

Search research articles

Related Experiment Videos

Pattern reversal responses in man and cat: a comparison.

R P Schuurmans, T Berninger

Ophthalmic Research

|January 1, 1984

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Zeolite-based, dry formulations for conservation and practical application of Paraburkholderia phytofirmans PsJN.

Journal of applied microbiology·2016

Same author

[Scanning laser ophthalmoscope multifocal electroretinography and microperimetry in patients with Stargardt's disease].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2003

Same author

Detecting chloroquine retinopathy: electro-oculogram versus colour vision.

The British journal of ophthalmology·2003

Same author

Scanning laser ophthalmoscope-evoked multifocal-ERG (SLO-m-ERG) by using short m-sequences.

European journal of ophthalmology·2002

Same author

[Topographic mapping of retinal function with a scanning laser ophthalmoscope and multifocal electroretinography using short M-sequences].

Vestnik oftalmologii·2001

Same author

X-linked ocular albinism (Nettleship-Falls): a novel 29-bp deletion in exon 1. Carrier detection by ophthalmic examination and DNA analysis.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·2001

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

This study shows that the pattern electroretinogram (PERG) and optic nerve response (ONR) in cats share similar characteristics, reflecting visual resolution. Human PERG responses align, but shift to higher spatial frequencies due to differing visual acuity.

Area of Science:

Neuroscience
Ophthalmology
Visual Science

Background:

The electroretinogram (ERG) and optic nerve response (ONR) are key indicators of retinal and optic nerve function.
Pattern stimuli provide insights into visual system processing beyond simple luminance changes.

Purpose of the Study:

To compare the characteristics of pattern electroretinogram (PERG) and optic nerve response (ONR) in cats.
To investigate the correlation between pattern visual evoked potentials and visual resolution in cats and humans.

Main Methods:

Recording of graded potentials from the retina (ERG) and optic nerve (ONR) in enucleated, perfused cat eyes.
Utilizing checker-board stimuli with pattern reversal at low temporal frequencies.
Analyzing amplitude, wave shape, time course, and amplitude versus check size plots.

Related Experiment Videos

Main Results:

ERG and ONR exhibited near-perfect duplication of pattern reversal responses with striking similarities in characteristics.
Amplitude versus check size plots coincided for both ERG and ONR.
Pattern reversal responses in cats correlated with their visual resolution (7-9 min of arc), and human PERG showed similar patterns but shifted to higher spatial frequencies.

Conclusions:

Pattern electroretinography and optic nerve responses are closely related in cats, reflecting visual processing capabilities.
The findings highlight species-specific differences in visual resolution, observable through pattern visual evoked potentials.