Richards P M, Persinger M A, Michel R N
Department of Psychology, Behavioral Neuroscience Program, Laurentian University, Sudbury, Ontario, Canada.
Percept Mot Skills. 1998 Jun;86(3 Pt 2):1259-62. doi: 10.2466/pms.1998.86.3c.1259.
Accuracies of two-point discrimination (successive 2-min increments between 0 and 10 mm) for the middle fingers and the middle toes for 87 children from ages 7 through 15 years were measured to obtain normative data. The finer discriminative capacity for the fingers rather than the toes was evident. Whereas discriminative accuracy approached the asymptote with distances equal to or greater than 4 mm for the fingers, distances equal to or greater than 8 mm were required for the toes. For this ontogenetic range, the effects for toes vs fingers was much greater than the effect size for age.
对87名7至15岁儿童的中指和中趾进行两点辨别（0至10毫米之间连续2分钟递增）准确性测量，以获取规范数据。手指的辨别能力比脚趾更精细，这一点很明显。对于手指，当距离等于或大于4毫米时，辨别准确性接近极限；而对于脚趾，则需要距离等于或大于8毫米。在这个个体发育范围内，脚趾与手指的差异效应远大于年龄的效应量。
