Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests
Over the past 20 years, several eye-tracking technologies have been developed. This article aims to present a new type of eye tracker capable of producing detailed information on eye and head movements using an array of magnetoresistive detectors fixed on the patient’s head and a small magnet insert...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Brain Sciences |
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| Online Access: | https://www.mdpi.com/2076-3425/13/10/1439 |
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| author | Aniello Donniacuo Francesca Viberti Mario Carucci Valerio Biancalana Lorenzo Bellizzi Marco Mandalà |
| author_facet | Aniello Donniacuo Francesca Viberti Mario Carucci Valerio Biancalana Lorenzo Bellizzi Marco Mandalà |
| author_sort | Aniello Donniacuo |
| collection | DOAJ |
| description | Over the past 20 years, several eye-tracking technologies have been developed. This article aims to present a new type of eye tracker capable of producing detailed information on eye and head movements using an array of magnetoresistive detectors fixed on the patient’s head and a small magnet inserted into a contact lens, adapted to the curvature of the cornea of the subject. The software used for data analysis can combine or compare eye and head movements and can represent them as 2D or 3D images. Preliminary data involve an initial patient who was asked to perform several tasks to establish the accuracy, reliability, and tolerance of the magnetic eye tracker and software. The tasks included assessment of saccadic eye movements and pursuit, “drawing” alphabetic shapes or letters, and reading. Finally, a Head Impulse Test (HIT) was performed to estimate the VOR gain, comparing the standard deviation established via vHIT with that established via this magnetic eye tracker (mHIT). This prototypical device is minimally invasive, lightweight, relatively cheap, and tolerable, with a high degree of reliability and precision. All these characteristics could lead to the future use of the magnetic eye tracker in neurological and otoneurological fields. |
| first_indexed | 2024-03-10T21:23:59Z |
| format | Article |
| id | doaj.art-e403560b3f6e4625a7cbcfb76a795888 |
| institution | Directory Open Access Journal |
| issn | 2076-3425 |
| language | English |
| last_indexed | 2024-03-10T21:23:59Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Brain Sciences |
| spelling | doaj.art-e403560b3f6e4625a7cbcfb76a7958882023-11-19T15:52:56ZengMDPI AGBrain Sciences2076-34252023-10-011310143910.3390/brainsci13101439Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo TestsAniello Donniacuo0Francesca Viberti1Mario Carucci2Valerio Biancalana3Lorenzo Bellizzi4Marco Mandalà5Department of Medicine, Surgery and Neuroscience, University of Siena, U.O.C. Otorinolaringoiatria, Viale Bracci 16, 53100 Siena, ItalyDepartment of Medicine, Surgery and Neuroscience, University of Siena, U.O.C. Otorinolaringoiatria, Viale Bracci 16, 53100 Siena, ItalyDepartment of Medicine, Surgery and Neuroscience, University of Siena, U.O.C. Otorinolaringoiatria, Viale Bracci 16, 53100 Siena, ItalyDepartment of Physical Sciences, Earth and Environment, University of Siena, Via Roma 56, 53100 Siena, ItalyDepartment of Physics “E. Fermi”, University of Pisa, Largo Pontecorvo 3, 56127 Pisa, ItalyDepartment of Medicine, Surgery and Neuroscience, University of Siena, U.O.C. Otorinolaringoiatria, Viale Bracci 16, 53100 Siena, ItalyOver the past 20 years, several eye-tracking technologies have been developed. This article aims to present a new type of eye tracker capable of producing detailed information on eye and head movements using an array of magnetoresistive detectors fixed on the patient’s head and a small magnet inserted into a contact lens, adapted to the curvature of the cornea of the subject. The software used for data analysis can combine or compare eye and head movements and can represent them as 2D or 3D images. Preliminary data involve an initial patient who was asked to perform several tasks to establish the accuracy, reliability, and tolerance of the magnetic eye tracker and software. The tasks included assessment of saccadic eye movements and pursuit, “drawing” alphabetic shapes or letters, and reading. Finally, a Head Impulse Test (HIT) was performed to estimate the VOR gain, comparing the standard deviation established via vHIT with that established via this magnetic eye tracker (mHIT). This prototypical device is minimally invasive, lightweight, relatively cheap, and tolerable, with a high degree of reliability and precision. All these characteristics could lead to the future use of the magnetic eye tracker in neurological and otoneurological fields.https://www.mdpi.com/2076-3425/13/10/1439eye trackervHITeye movementssearch coil |
| spellingShingle | Aniello Donniacuo Francesca Viberti Mario Carucci Valerio Biancalana Lorenzo Bellizzi Marco Mandalà Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests Brain Sciences eye tracker vHIT eye movements search coil |
| title | Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests |
| title_full | Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests |
| title_fullStr | Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests |
| title_full_unstemmed | Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests |
| title_short | Development of a Magnetoresistive-Based Wearable Eye-Tracking System for Oculomotor Assessment in Neurological and Otoneurological Research—Preliminary In Vivo Tests |
| title_sort | development of a magnetoresistive based wearable eye tracking system for oculomotor assessment in neurological and otoneurological research preliminary in vivo tests |
| topic | eye tracker vHIT eye movements search coil |
| url | https://www.mdpi.com/2076-3425/13/10/1439 |
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