Context control of search behavior: evidence from a "hurdling"-technique

7 Ss scanned search lists for members of a predefined target category. After some practice sessions, they were confronted with test lists. Test lists were same as the training lists, except for the insertion of two hurdle signals between the top of the lists and the position of the target signal. Hurdles were detected by all Ss, and search speed was affected, too. Implications of the findings for a model of skilled search behavior are discussed.