title: Perceptual-motor behaviour during a simulated pedestrian crossing.
abstract: This study used a novel research paradigm to examine gait control during real-time between-person collision avoidance. Ten young adults (M=20.1±1.52years) were required to walk across a six metre simulated pedestrian crossing, while avoiding a collision with one or two oncoming pedestrians. The potential for social interaction was manipulated by having the oncoming pedestrians walk with (2MP) or without (2P) looking at a mobile phone. Participants took longer to complete the crossing when avoiding a collision with two oncoming pedestrians (2MP: M=5.68s; 2P: M=5.74s) in comparison with baseline (M=4.96s). Gait velocity decreased and was more variable when avoiding a collision during the 2P condition, whilst the anterior-posterior separation distance between pedestrians and the participants at the initiation of peak mediolateral deviation was significantly smaller in 2MP compared to 2P. These findings offer preliminary understanding on how gait control may be adapted to changes in the availability of other persons' gaze orientation information. Future work is needed to further understand how different adaptive behaviours emerge relative to other persons during pedestrian crossings.
authors.affiliation: Department of Sport and Exercise Science, University of Portsmouth, Spinnaker Building, Cambridge Road, Portsmouth, PO1 2ER, United Kingdom. Electronic address: matt.dicks@port.ac.uk.
authors.forename: Matt
authors.initials: M
authors.lastname: Dicks
authors.affiliation: Department of Sport and Exercise Science, University of Portsmouth, Spinnaker Building, Cambridge Road, Portsmouth, PO1 2ER, United Kingdom.
authors.forename: Christal
authors.initials: C
authors.lastname: Clashing
authors.affiliation: Department of Sport and Exercise Science, University of Portsmouth, Spinnaker Building, Cambridge Road, Portsmouth, PO1 2ER, United Kingdom.
authors.forename: Liam
authors.initials: L
authors.lastname: O'Reilly
authors.affiliation: Department of Sport and Exercise Science, University of Portsmouth, Spinnaker Building, Cambridge Road, Portsmouth, PO1 2ER, United Kingdom.
authors.forename: Chris
authors.initials: C
authors.lastname: Mills
mesh_terms: D000063:Accidents, Traffic / Q000517:prevention & control*; D000328:Adult; D003198:Computer Simulation; D005260:Female; D005684:Gait / Q000502:physiology*; D006801:Humans; D008297:Male; D000072458:Orientation, Spatial / Q000502:physiology*; D000069636:Pedestrians; D012449:Safety; D016138:Walking / Q000502:physiology*; D055815:Young Adult
keywords: Collision Avoidance; Gait; Kinematics; Social Attention