Spatial Vision , Vol. 17, No. 4-5, pp. 497 – 510 (2004) VSP 2004. Also available online - www.vsppub.com Landmarks help guide attention during visual search MATTHEW S. PETERSON 1 , ∗ , WALTER R. BOOT 2 , ARTHUR F. KRAMER 2 and JASON S. McCARLEY 3 1 Department of Psychology, George Mason University, MS 3F5, 4400 University Drive, Fairfax, Virginia, VA 22030, USA 2 Beckman Institute and Department of Psychology, University of Illinois, Urbana-Champaign, USA 3 Department of Psychology, Mississippi State University, USA Received 29 May 2003; revised 24 November 2003; accepted 29 November 2003 Abstract —Using a novel visual search paradigm McCarley et al. (2003) concluded that the oculomo- tor system keeps a history of 3–4 previously attended objects. However, their displays were visually sparse, denying participants structural information which might be used during normal search. This might have underestimated memory capacity. To examine this possibility, we included landmarks in the same search paradigm. Previously examined items were re-examined less frequently when landmarks were present compared to when they were absent. Results indicate that objects in the envi- ronment that share no features with search items are used as external support to aid memory in
Spatial Vision (continued as Seeing & Perceiving from 2010) – Brill
Published: Jan 1, 2004
Keywords: ATTENTION; VISUAL SEARCH
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