SaFiDe: Detection of saccade and fixation periods based on eye-movement attributes from video-oculography, scleral coil or electrooculography data.

Autor:	Madariaga S; Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Chile.; Centro Nacional de Inteligencia Artificial, CENIA, Chile., Babul C; Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Chile.; Biomedical Neuroscience Institute, BNI, Universidad de Chile, Chile., Egaña JI; Departamento de Anestesiología y Medicina Perioperatoria, Facultad de Medicina, Universidad de Chile, Chile., Rubio-Venegas I; Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Chile., Güney G; Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.; Humboldt-Universität zu Berlin, Institut für Biologie, 10099 Berlin, Germany., Concha-Miranda M; Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Chile.; Bernstein Center for Computational Neuroscience Berlin, Humboldt-Universität zu Berlin, 10115 Berlin, Germany., Maldonado PE; Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Chile.; Centro Nacional de Inteligencia Artificial, CENIA, Chile.; Biomedical Neuroscience Institute, BNI, Universidad de Chile, Chile., Devia C; Departamento de Neurociencia, Facultad de Medicina, Universidad de Chile, Chile.; Centro Nacional de Inteligencia Artificial, CENIA, Chile.; Biomedical Neuroscience Institute, BNI, Universidad de Chile, Chile.
Jazyk:	angličtina
Zdroj:	MethodsX [MethodsX] 2023 Jan 24; Vol. 10, pp. 102041. Date of Electronic Publication: 2023 Jan 24 (Print Publication: 2023).
DOI:	10.1016/j.mex.2023.102041
Abstrakt:	In this work we present SaFiDe, a deterministic method to detect eye movements (saccades and fixations) from eye-trace data. We developed this method for human and nonhuman primate data from video- and coil-recorded eye traces and further applied the algorithm to eye traces computed from electrooculograms. All the data analyzed were from free-exploration paradigms, where the main challenge was to detect periods of saccades and fixations that were uncued by the task. The method uses velocity and acceleration thresholds, calculated from the eye trace, to detect saccade and fixation periods. We show that our fully deterministic method detects saccades and fixations from eye traces during free visual exploration. The algorithm was implemented in MATLAB, and the code is publicly available on a GitHub repository.•The algorithm presented is entirely deterministic, simplifying the comparison between subjects and tasks.•Thus far, the algorithm presented can operate over video-based eye tracker data, human electrooculogram records, or monkey scleral eye coil data. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2023 The Authors. Published by Elsevier B.V.)
Databáze:	MEDLINE
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