2008 年 27 巻 1 号 p. 125-126
We used the preferential looking technique to examine whether 3-4-month-old and 5-6-month-old infants perceive the illusory transparent surface induced by a newly developed mixed polarity Kanizsa configuration. Our results suggest that 3-4-month-old and 5-6-month-old infants discriminate the transparent Kanizsa configuration both from its rotated counterpart and from the non-transparent Kanizsa configuration, and they also prefer the former over the latter 2 configur-ations. Our stimuli and experimental manipulation exclude the possibility that these responses could be based on the geometrical properties of the figure or the local contrast difference between the figures. The present finding suggests that both 3-4-month-olds and 5-6-month-olds could organize the fragmented elements presented in our transparent Kanizsa configuration and perceive the illusory transparent surface.