1998 年 16 巻 2 号 p. 76-81
Cutting, Proffitt & Kozlowski (1978) suggested that center of moment (Cm) is the most important index for recognizing the gender of point-light walkers. The purpose of the present study was to investigate whether or not the Cm is an important index even in the case of point-light runners. Japanese male and female students who had the different values of Cm (male 0.6/female 0.5), and who had the same value of Cm (0.55) were participated in this experiment for producing biological motion stimuli. The stimuli consisted of 11 moving dots which were generated by the motion of point-light runners. It was expected that gender recognition for point-light runners who had the same value of Cm (0.55) would be difficult. As a result, the correct responses rate for Japanese point-light runners was better than chance. But the correct responses rate for the female runners was significantly lower than that for male, regardless of the value of Cm. It showed that the Cm index does not have the same effectiveness for recognizing male and female point-light runners.