title: The effects of stimulus rotation and familiarity in visual search.
abstract: Rauschenberger and Yantis (2006) observed that an intersecting circle-line combination enjoyed significantly greater search efficiency when it was oriented to resemble a "Q" than when it was oriented so that the intersecting line was vertical (cf. Treisman and Souther, 1985). Although a control experiment made it unlikely that the obliqueness of the line was responsible for the observed benefit, there was no direct evidence that this benefit was attributable to the "Q-ness" of the stimulus. In the present study, a subset of Rauschenberger and Yantis's experiments was repeated with Chinese subjects, who had never been exposed to the Latin alphabet. For these subjects, there was no benefit for the"Q"-like stimulus, in contrast to the results of Rauschenberger and Yantis's study. These results show that a simple 45 degrees rotation of a stimulus can affect search efficiency significantly--but only when this rotation bestows meaning, or familiarity, to that stimulus.
authors.affiliation: User Interface Design Center, Siemens Corporate Research, 755 College Road East, Princeton, NJ 08540, USA. robert.rauschenberger@siemens.com
authors.forename: Robert
authors.initials: R
authors.lastname: Rauschenberger
authors.forename: Hengqing
authors.initials: H
authors.lastname: Chu
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time; D012399:Rotation; D014796:Visual Perception