1998 年 16 巻 2 号 p. 69-75
Ninose & Gyoba (1996) found that delays occurred in recognizing test Kanji characters after 25 sec prolonged viewing of an adaptation Kanji and suggested that prolonged viewing may produce an adaptation effect specific to Kanji patterns. The present study examined whether the delays produced by prolonged viewing are independent from Kanji's orientations. When the adaptation Kanji was upright and the test Kanjis were rotated 30°, there were significant delays only when both stimuli were of the same pattern. However, such delays disappeared when the test Kanjis were rotated 90° or 180°. These results suggest that a Kanji pattern seems to be internally represented as a whole independent from its orientation to some limited degrees.