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A method for measuring eye movements using Hall-effect devices.

C Salas·B Torres·F Rodríguez
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Abstract

A system for precise recording of eye position and movements in laboratory animals, by means of Hall-effect devices, is described. The system, useful in neurophysiological and neurobehavioral studies, allows the analysis of saccadic eye movements, optokinetic- and vestibular-induced nystagmus, slow tracking movements, eye vergences, and so forth. This small, light-weight, and inexpensive system uses a set of Hall-effect devices and associated electronics to sense variations in the position of high-power magnets fixed in the eye sclera or in scleral contact lenses. The output of the Hall-effect devices is amplified by operational amplifiers, collected through an A/D converter, and analyzed in a PC computer by specific software.

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AnimalsElectrophysiologyEquipment DesignEye MovementsGoldfishHumansJournal ArticleResearch Support, Non-U.S. Gov't

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C Salas, B Torres, F Rodríguez. 1999. A method for measuring eye movements using Hall-effect devices.. https://doi.org/10.3758/bf03207732

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