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EOG

EOG

Eye movements are controlled by the six extrinsic muscles of each eye; these muscles allow the eyes to track moving objects or fixate on stationary object while the head moves.

Eye movements can be recorded using electrodes placed on the skin near the eyes. This kind of recording is called an electrooculogram (EOG).

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EOG
EOG

Signal Overview

An EOG records eye movement by detecting a voltage difference between the cornea and retina. As the eye moves, the vector of this electric field changes with respect to recording electrodes placed in the skin at fixed points. These bioelectrical signals are typically very small in amplitude (µV) and an amplifier is required to accurately record the EOG.
Slow-tracking eye movements occur at 3-40 Hz (a feature used in humans to track distant moving objects and slow moving near objects). The tracking movements of the eye become rapid (900 Hz) and the eye moves back and forth very quickly when the object is moving rapidly. 
 
Signal
LabChart

Enabling Discovery

LabChart

All your EOG analysis in one place

LabChart software is designed specifically for life science data and provides up to 32 channels for data display and analysis options that are powerful and easy to use. With auto-recognition of ADI and LabChart Compatible hardware, multi-window views, one touch recording, simultaneous recording from multiple devices, specialized preconfigured settings, easy sharing options and an interface that can be customized to show only the features you want to use.

Recording direction and size of eye movements

A four channel configurations is recommended for researching these types of recordings. This requires that electrodes are placed horizontal to the outer canthi as well as infraorbital and supraorbital, with all electrodes paired with a similar ear, mastoid or suppranasion electrode. 

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Features and Add-Ons

Additional acquisition and analysis options to support your EOG analysis:

Explore EOG Data in LabChart Reader

LabChart Reader is a free application for conducting limited analyses of LabChart data. Download a trial package with example data below.

Platform Required

Thanks! Your trial package is now downloading.

Once downloaded, please unzip the folder and install the LabChart Reader application.

Open the "LabChart Data Files" folder to find data files (".adicht"). Data files can be opened in LabChart Reader by double clicking on the file name.

Request a demo

Thank you for your interest in EOG. Please complete and submit the form below and an ADInstruments representative will aim to get in touch within one working day. If you’d like to speak to someone immediately, office contact information is available from the contact page.

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Ask a question

Thank you for your interest in EOG. Please complete and submit the form below and an ADInstruments representative will aim to get in touch within one working day. If you’d like to speak to someone immediately, office contact information is available from the contact page.

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