再認判断に及ぼす刺激の呈示先行性と鮮明性の影響

抄録

The present study was designed to examine the effects of relative precedence of choices and clearness of exposure on recognition judgment. Following the phenomenal characteristics reported by subjects, new experimental paradigms were introduced: Instead of meaningful words, nonsense, irregular shapes were used as stimuli in the forced-choice test, which required subjects to make recognition judgment directly without any stage of reading each stimulus. A total of 88 subjects participated. The forced-choice test with four choices demonstrated that recognition was facilitated by relative precedence, but not by image clearness. Furthermore, the effect of clearness on recognition was reexamined under the conditions where the influence of precedence was excluded (Exp.2), all choice-stimulus had low familiarity (i.e., NEW stimulus) (Exp.3), and image blurring (Exp.4). It was found, however, that clear exposure again had no significant effect on recognition judgment.