title: The use of time and trajectory forms as visual information about spatial scale in events.
abstract: Spatial metrics are lost but temporal metrics are preserved in the mapping from events to optic flow. In inanimate events governed by gravity, temporal scale is linked to spatial scale in ways specific to particular events. We tested whether time can be used as information about spatial scale in visually recognizable events. On average, observers were able to judge object size in event displays that eliminated information other than time and trajectory forms. However, judgment variability was substantial. After feedback on one event, observers judging distance performed better and generalized training to other events. Observers are sensitive to the general form of the scaling relation, but they require feedback to attune event-specific constants.
authors.affiliation: Department of Psychology, Indiana University, Bloomington, IN 47405, USA. dsmcconn@indiana.edu
authors.forename: D S
authors.initials: DS
authors.lastname: McConnell
authors.forename: M M
authors.initials: MM
authors.lastname: Muchisky
authors.forename: G P
authors.initials: GP
authors.lastname: Bingham
mesh_terms: D000328:Adult; D003626:Data Display; D004215:Distance Perception; D005260:Female; D006801:Humans; D007600:Judgment; D008297:Male; D008959:Models, Neurological; D009415:Nerve Net; D010364:Pattern Recognition, Visual; D012016:Reference Values; D012044:Regression Analysis; D012858:Size Perception; D013028:Space Perception; D013998:Time Perception