Evolved Navigation Theory and Horizontal Visual Illusions

Autor/inn/en	Jackson, Russell E.; Willey, Chela R.
Titel	Evolved Navigation Theory and Horizontal Visual Illusions
Quelle	In: Cognition, 119 (2011) 2, S.288-294 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0010-0277
DOI	10.1016/j.cognition.2010.11.003
Schlagwörter	Experimental Psychology; Visual Perception; Visual Discrimination; Visual Stimuli; Behaviorism; Prediction; Risk + Suchen Sie Ihr Suchwort? Experimentelle Psychologie; Visuelle Wahrnehmung; Behaviourism; Behaviorismus; Vorhersage; Risiko
Abstract	Environmental perception is prerequisite to most vertebrate behavior and its modern investigation initiated the founding of experimental psychology. Navigation costs may affect environmental perception, such as overestimating distances while encumbered (Solomon, 1949). However, little is known about how this occurs in real-world navigation or how it may have evolved. We manipulated the most commonly navigated surfaces with a non-intuitive cost derived from evolved navigation theory. Observers in realistic settings unknowingly overestimated horizontal distances that contained a risk of falling and did so by the relative degree of falling risk. This manipulation produced previously unknown, large magnitude illusions in everyday vision in the environments most commonly navigated by humans. These results bear upon predictions from multiple fundamental theories of visual cognition. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10