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PyOKR: A Semi-Automated Method for Quantifying Optokinetic Reflex Tracking Ability

PyOKR: A Semi-Automated Method for Quantifying Optokinetic Reflex Tracking Ability

We describe here PyOKR, a semi-automated quantitative analysis method that directly measures eye movements resulting from visual responses to two-dimensional image motion. A Python-based user interface and analysis algorithm allows for higher throughput and more accurate quantitative measurements of eye-tracking parameters than previous methods.

Quantification of Visual Feature Selectivity of the Optokinetic Reflex in Mice

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Here, we describe a standard protocol for quantifying the optokinetic reflex. It combines virtual drum stimulation and video-oculography, and thus allows precise evaluation of the feature selectivity of the behavior and its adaptive plasticity.

Optokinetic Response Assay: A Method to Measure Visual Acuity in Zebrafish

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This video describes the optokinetic response assay in zebrafish. The video measures the reflexive eye movements based on the visual moving stimulus and determines the visual acuity in...

A Method to Quantify Visual Information Processing in Children Using Eye Tracking

A Method to Quantify Visual Information Processing in Children Using Eye Tracking

A method is described to quantify the quality of visual information processing based on reflexive eye movements in response to specific visual modalities. Reaction times and fixation output parameters are used to characterize visual performance in children with and without visual impairments from 6 months of...

The Optokinetic Response as a Quantitative Measure of Visual Acuity in Zebrafish

The Optokinetic Response as a Quantitative Measure of Visual Acuity in Zebrafish

Zebrafish have been a valuable tool for many research areas. Here we demonstrate a method to elicit a visual response and calculate a functional visual acuity in the adult...

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Optokinetic response has been widely used to assess the visual functions of larval zebrafish. Nevertheless, the standard protocol for larval fish is not yet readily applicable in adults1-5. Here, we introduce how to measure the OKR of adult zebrafish using a new protocol which is established in our...

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Related Experiment Video

Updated: Jan 20, 2026

Author Spotlight: A Streamlined and Accessible Analysis Method to Quantify Optokinetic Reflex Tracking Responses

Author Spotlight: A Streamlined and Accessible Analysis Method to Quantify Optokinetic Reflex Tracking Responses

Published on: April 12, 2024

[Optokinetic nystagmus studied through otoneurologic methods].

A Hadj-Djilani, C Schneider

ORL; Journal for Oto-Rhino-Laryngology and Its Related Specialties

|January 1, 1976

Summary

This summary is machine-generated.

Horizontal optokinetic nystagmus (NOC) asymmetry is a reliable indicator of lesion evolution in otoneurological cases. Asymmetry direction in NOC can help localize brain lesions, particularly in hemispheric cases.

Area of Science:

Neurology
Ophthalmology
Vestibular System

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