Abstract
Yamamoto, Kawahara & Ohtsuka(2008) explored basic-level picture-word serial matching task, and found that superordinate similarity effect occurs only when prime words precede target pictures. In this experiment, we systematically manipulated SOA intervals and found that superordinate similarity effect (1) does not occur at SOA=600ms; (2) occur at SOA=750ms in both stimulus order conditions; (3) occur at SOA=1000ms and 1250ms only when prime words precede target pictures.