TY - JOUR
T1 - The effect of target foreknowledge on visual search for categorically separable orientation targets
AU - Hodsoll, John
AU - Humphreys, Glyn
PY - 2005/8/1
Y1 - 2005/8/1
N2 - This research note assesses the role of target foreknowledge in visual search for categorically defined orientation targets, as first described by Wolfe et al. [Wolfe, J. M., Friedman-Hill, S. R., Stewart, M. I., & O'Connell, K. M. (1992). The role of categorisation in visual search for orientation. Journal of Experimental Psychology: Human Perception and Performance, 18, 34-49]. We compared search with known versus unknown (respond to the odd item) targets. An RT advantage for categorical search only emerged with known targets. The evidence points to an important role for top-down processes in search for categorically--defined orientation targets.
AB - This research note assesses the role of target foreknowledge in visual search for categorically defined orientation targets, as first described by Wolfe et al. [Wolfe, J. M., Friedman-Hill, S. R., Stewart, M. I., & O'Connell, K. M. (1992). The role of categorisation in visual search for orientation. Journal of Experimental Psychology: Human Perception and Performance, 18, 34-49]. We compared search with known versus unknown (respond to the odd item) targets. An RT advantage for categorical search only emerged with known targets. The evidence points to an important role for top-down processes in search for categorically--defined orientation targets.
KW - orientation
KW - categorical perception
KW - visual search
KW - top-down processes
KW - visual attention
UR - http://www.scopus.com/inward/record.url?scp=20544478403&partnerID=8YFLogxK
U2 - 10.1016/j.visres.2005.03.017
DO - 10.1016/j.visres.2005.03.017
M3 - Article
C2 - 15913702
VL - 45
SP - 2346
EP - 2351
JO - Vision Research
JF - Vision Research
ER -