title: [Forgetting properties of orientation information of natural objects].
abstract: The purpose of this research was to compare the forgetting property of object orientation information and identity information. They were measured by two types of recognition tests about both of information of natural objects presented in Rapid Serial Visual Presentation (RSVP). Participants were one hundred and twenty undergraduates who were tested with two recognition tests. The results indicated; (1) Short-term memory for orientation information was inferior to that for identity information; (2) Estimated decay rate of orientation information was about twice as fast as that of identity information; (3)Orientation information was forgotten in about two seconds regardless of the category level of presented objects. Finally, the validity of recognition tests of object orientation and the independence of identity information and orientation information are discussed.
authors.affiliation: Department of Intelligence Science and Technology, Graduate School of Informatics, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606 8501, Japan. nasu@cog.ist.i.kyoto-u.ac.jp
authors.forename: Kazumasa
authors.initials: K
authors.lastname: Nasu
authors.forename: Toshio
authors.initials: T
authors.lastname: Inui
mesh_terms: D000328:Adult; D006801:Humans; D008570:Memory, Short-Term; D009949:Orientation; D021641:Recognition, Psychology; D014796:Visual Perception