title: Saccadic velocity as an arousal index in naturalistic tasks.
abstract: Experimental evidence indicates that saccadic metrics vary with task difficulty and time-on-task in naturalistic scenarios. We explore historical and recent findings on the correlation of saccadic velocity with task parameters in clinical, military, and everyday situations, and its potential role in ergonomics. We moreover discuss the hypothesis that changes in saccadic velocity indicate variations in sympathetic nervous system activation; that is, variations in arousal.
authors.affiliation: Department of Neurobiology, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA. distasi@ugr.es
authors.forename: Leandro L
authors.initials: LL
authors.lastname: Di Stasi
authors.forename: Andrés
authors.initials: A
authors.lastname: Catena
authors.forename: José J
authors.initials: JJ
authors.lastname: Cañas
authors.forename: Stephen L
authors.initials: SL
authors.lastname: Macknik
authors.forename: Susana
authors.initials: S
authors.lastname: Martinez-Conde
mesh_terms: D001143:Arousal / Q000502:physiology*; D006804:Ergonomics; D006801:Humans; D001523:Mental Disorders / Q000175:diagnosis / Q000503:physiopathology; D011930:Reaction Time / Q000502:physiology; D012438:Saccades / Q000502:physiology*; D012892:Sleep Deprivation / Q000503:physiopathology