title: Comparing extra-retinal information about distance and direction.
abstract: The idea that extra-retinal information about the orientation of the eyes could be used to judge an object's distance has a long history, and has been the issue of considerable debate throughout this century. We here show that the poor performance in comparison with judgements of direction has geometrical rather than physiological reasons, and discuss why previous studies have misled us into believing that information about distance is even poorer than the geometry predicts.
authors.affiliation: Vakgroep Fysiologie, Erasmus Universiteit, Postbus 1738, 3000 DR, Rotterdam, The Netherlands. brenner@fys.fgg.eur.nl
authors.forename: E
authors.initials: E
authors.lastname: Brenner
authors.forename: J B
authors.initials: JB
authors.lastname: Smeets
mesh_terms: D003290:Convergence, Ocular / Q000502:physiology; D004215:Distance Perception / Q000502:physiology*; D006801:Humans; D008433:Mathematics; D012438:Saccades / Q000502:physiology; D012858:Size Perception / Q000502:physiology; D013028:Space Perception / Q000502:physiology*; D015348:Vision, Binocular / Q000502:physiology