三次元物体認識における空間周波数感度および遂行成績への課題要求の影響

抄録

This study investigated whether our sensitivity to spatial frequencies of three-dimensional objects will vary according to task demand. Our experimental design followed that of Newell (1998) and added a variable spatial frequency. Newell (1998) reported that view dependence was observed when similarity between objects was high and memory set size was large. Experiment 1 showed that high similarity and large memory set size reduced sensitivity to low spatial frequency (LSF), while Experiment2 showed that only large memory set size caused view dependent strategy to process LSF. These results suggest that similarity and memory set size affect the variation of sensitivity to spatial frequency with large memory set size reducing sensitivity to LSF.