Children's perception of gap affordances: bicycling across traffic-filled intersections in an immersive virtual environment.

This study examined gap choices and crossing behavior in children and adults using an immersive, interactive bicycling simulator. Ten- and 12-year-olds and adults rode a bicycle mounted on a stationary trainer through a virtual environment consisting of a street with 6 intersections. Participants faced continuous cross traffic traveling at 25 mph or 35 mph and waited for gaps they judged were adequate for crossing. Children and adults chose the same size temporal gaps, but children left far less time to spare between themselves and the approaching vehicle when they crossed the intersection. Relative to adults, children delayed in getting started and took longer to reach the roadway. Discussion focuses on developmental changes in how children coordinate self movement with object movement.

[1]  P. B. Pufall,et al.  Perceiving Whether or Not the World Affords Stepping Onto and Over: A Developmental Study , 1992 .

[2]  Marion A. Eppler,et al.  Crawling versus walking infants' perception of affordances for locomotion over sloping surfaces. , 1993, Child development.

[3]  David N. Lee,et al.  A roadside simulation of road crossing for children , 1984 .

[4]  James E. Cutting,et al.  How we avoid collisions with stationary and moving objects. , 1995 .

[5]  Peter Willemsen,et al.  Ribbon networks for modeling navigable paths of autonomous agents in virtual urban environments , 2003, IEEE Virtual Reality, 2003. Proceedings..

[6]  V Cavallo,et al.  Visual Information and Skill Level in Time-To-Collision Estimation , 1988, Perception.

[7]  Jeroen B. J. Smeets,et al.  Multiple information sources in interceptive timing , 1997 .

[8]  David C Schwebel,et al.  The role of parents and temperament on children's estimation of physical ability: links to unintentional injury prevention. , 2003, Journal of pediatric psychology.

[9]  D. Thompson,et al.  Epidemiology of bicycle injuries and risk factors for serious injury. , 1997, Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention.

[10]  E R Hoffmann,et al.  Children's Estimates of Vehicle Approach Times , 1980, Human factors.

[11]  F P Rivara,et al.  Prevention of injuries to children and adolescents , 2002, Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention.

[12]  K. Adolph.  Specificity of Learning: Why Infants Fall Over a Veritable Cliff , 2000, Psychological science.

[13]  F. C. Bakker,et al.  The relevance of action in perceiving affordances: perception of catchableness of fly balls. , 1996, Journal of experimental psychology. Human perception and performance.

[14]  D. Schwebel,et al.  Social and temperamental influences on children's overestimation of their physical abilities: links to accidental injuries. , 1997, Journal of experimental child psychology.

[15]  R. Siegler,et al.  Development of Time, Speed, and Distance Concepts , 1979 .

[16]  T. Pitcairn,et al.  Individual differences in road crossing ability in young children and adults. , 2000, British journal of psychology.

[17]  W Schiff,et al.  Information Used in Judging Impending Collision , 1979, Perception.

[18]  T. Pitcairn,et al.  Errors in young children's decisions about traffic gaps: experiments with roadside simulations. , 1992, British journal of psychology.

[19]  R. Baillargeon,et al.  Task constraints and infant grip configurations. , 1989, Developmental psychobiology.

[20]  Jodie M. Plumert,et al.  Relations Between Children ' s Overestimation of Their Physical Abilities and Accident Proneness , 2004 .

[21]  E J Gibson,et al.  Detection of the traversability of surfaces by crawling and walking infants. , 1987, Journal of experimental psychology. Human perception and performance.

[22]  A. Yonas,et al.  Effective action by infants to contact objects by reaching and leaning. , 1993, Child development.

[23]  C. Michaels,et al.  To Cross or Not to Cross: The Effect of Locomotion on Street-Crossing Behavior , 1996 .

[24]  D. Thompson,et al.  Incidence of bicycle-related injuries in a defined population. , 1990, American journal of public health.

[25]  A. Dannenberg,et al.  INJURIES TO BICYCLISTS: A NATIONAL PERSPECTIVE , 1993 .

[26]  K. Adolph,et al.  Psychophysical assessment of toddlers' ability to cope with slopes. , 1995, Journal of experimental psychology. Human perception and performance.

[27]  J. Gibson.  The Ecological Approach to Visual Perception , 1979 .

[28]  J. Loomis,et al.  Immersive virtual environment technology as a basic research tool in psychology , 1999, Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc.

[29]  F. C. Bakker,et al.  Catching balls: how to get the hand to the right place at the right time. , 1994, Journal of experimental psychology. Human perception and performance.

[30]  R B Isler,et al.  Child pedestrians' crossing gap thresholds. , 1998, Accident; analysis and prevention.

[31]  Does vision guide stair climbing? a developmental study , 1992 .

[32]  J. Piaget.  Child's Conception of Movement and Speed , 1970 .

[33]  Paul A. Braren,et al.  How We Avoid Collisions With Stationary and Moving Obstacles , 2004 .

[34]  J W Nixon,et al.  Children and bicycles: what is really happening? Studies of fatal and non-fatal bicycle injury. , 1995, Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention.

[35]  D. Schwebel,et al.  Longitudinal and concurrent relations among temperament, ability estimation, and injury proneness. , 1999, Child development.

[36]  F. Wilkening.  Integrating velocity, time, and distance information: A developmental study , 1981, Cognitive Psychology.

[37]  H. Pick,et al.  Integrating basic and applied developmental research: a new model for the twenty-first century. , 2000, Child development.

[38]  H. Ross,et al.  Optic-Flow and Cognitive Factors in Time-to-Collision Estimates , 1983, Perception.

[39]  P. Hancock,et al.  The Perception of Arrival Time for Different Oncoming Vehicles at an Intersection , 1994 .

[40]  C. Hofsten.  Catching Skills in Infancy , 1983 .

[41]  John van der Kamp,et al.  Information in learning to co-ordinate and control movements: Is there a need for specificity of practice? , 2000 .

[42]  P. Hancock,et al.  Influence of Approach Angle on Estimates of Time-To-Contact , 1996 .

[43]  D S Young,et al.  Training children in road crossing skills using a roadside simulation. , 1987, Accident; analysis and prevention.

[44]  F P Rivara,et al.  Traumatic deaths of children in the United States: currently available prevention strategies. , 1985, Pediatrics.

[45]  Peter Willemsen,et al.  Directable behavior models for virtual driving scenarios , 1997 .