title: EALab (Eye Activity Lab): a MATLAB Toolbox for Variable Extraction, Multivariate Analysis and Classification of Eye-Movement Data.
abstract: Recent advances in the reliability of the eye-tracking methodology as well as the increasing availability of affordable non-intrusive technology have opened the door to new research opportunities in a variety of areas and applications. This has raised increasing interest within disciplines such as medicine, business and education for analysing human perceptual and psychological processes based on eye-tracking data. However, most of the currently available software requires programming skills and focuses on the analysis of a limited set of eye-movement measures (e.g., saccades and fixations), thus excluding other measures of interest to the classification of a determined state or condition. This paper describes 'EALab', a MATLAB toolbox aimed at easing the extraction, multivariate analysis and classification stages of eye-activity data collected from commercial and independent eye trackers. The processing implemented in this toolbox enables to evaluate variables extracted from a wide range of measures including saccades, fixations, blinks, pupil diameter and glissades. Using EALab does not require any programming and the analysis can be performed through a user-friendly graphical user interface (GUI) consisting of three processing modules: 1) eye-activity measure extraction interface, 2) variable selection and analysis interface, and 3) classification interface.
authors.affiliation: Department of Computing, Imperial College London, London, UK. javier.andreu@imperial.ac.uk.
authors.forename: Javier
authors.initials: J
authors.lastname: Andreu-Perez
authors.affiliation: Department of Marketing and Market Research, Faculty of Economic and Business Sciences, University of Granada, Granada, Spain.
authors.forename: Celine
authors.initials: C
authors.lastname: Solnais
authors.affiliation: Department of Surgery and Cancer, St Mary's Hospital, Imperial College London, London, UK.
authors.forename: Kumuthan
authors.initials: K
authors.lastname: Sriskandarajah
mesh_terms: D000465:Algorithms; D053483:Eye Movement Measurements; D005133:Eye Movements; D006801:Humans; D000069550:Machine Learning; D015999:Multivariate Analysis; D012815:Signal Processing, Computer-Assisted; D012984:Software; D014584:User-Computer Interface
keywords: Classification; Computer software; Eye tracking; Machine learning; Multivariate analysis; Neuroinformatics