文字の能動的触認知に及ぼす刺激の大きさの効果

Abstract

To test the peripheral receptor spacing hypothesis (Phillips, Johnson, & Browne, 1983) 24 students partook in the experiment as the subjects, a half of which was males and the rest was females. There were two subject groups: group A was presented 26 upper case Roman alphabet letters and group K was presented 48 Japanese katakana letters. Each of stimulus letters was presented once at each size (3.0, 5.5, and 8.0mm in height) to the right index finger tip. The hit rates of the katakana letter were less than those of the alphabet (P<.01). This result suggests that the peripheral receptor spacing could not be the only determinant in haptic recognition of letters. Possible causes of difference between the hit rates were discussed.