Literaturnachweis - Detailanzeige
| Autor/inn/en | Maus, Gerrit W.; Nijhawan, Romi |
|---|---|
| Titel | Going, Going, Gone: Localizing Abrupt Offsets of Moving Objects |
| Quelle | In: Journal of Experimental Psychology: Human Perception and Performance, 35 (2009) 3, S.611-626 (16 Seiten)
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0096-1523 |
| DOI | 10.1037/a0012317 |
| Schlagwörter | Adults; Visual Perception; Experiments; Experimental Psychology; Visual Stimuli; Models; Spatial Ability; Time Factors (Learning); Error Patterns; Motion; Observation; Task Analysis; Computers |
| Abstract | When a moving object abruptly disappears, this profoundly influences its localization by the visual system. In Experiment 1, 2 aligned objects moved across the screen, and 1 of them abruptly disappeared. Observers reported seeing the objects misaligned at the time of the offset, with the continuing object leading. Experiment 2 showed that the perceived forward displacement of the moving object depended on speed and that offsets were localized accurately. Two competing representations of position for moving objects are proposed: 1 based on a spatially extrapolated internal model, and the other based on transient signals elicited by sudden changes in the object trajectory that can correct the forward-shifted position. Experiment 3 measured forward displacements for moving objects that disappeared only for a short time or abruptly reduced contrast by various amounts. Manipulating the relative strength of the 2 position representations in this way resulted in intermediate positions being perceived, with weaker motion signals or stronger transients leading to less forward displacement. This 2-process mechanism is advantageous because it uses available information about object position to maximally reduce spatio-temporal localization errors. (Contains 6 figures and 2 footnotes.) (As Provided). |
| Anmerkungen | American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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