Whiting H T, Sharp R H
a Department of Physical Education , University of Leeds.
J Mot Behav. 1974 Mar;6(1):11-6. doi: 10.1080/00222895.1974.10734974.
Male university students (N=44) attempted to catch lawn-tennis balls delivered by a mechanical projection machine. The ball was always projected in the dark and caught in the dark but was illuminated for a constant, brief interval during its flight by a fluorescent tube. The portion of flight illuminated was varied by manipulating systematically the interval between light offset and ball-hand contact. This variable served as the single factor in a within-Ss design. ANOVA showed that catching success was reliably dependent upon this variable and related to it by an inverted 'U' function. Results were discussed in terms of prediction ability and a possible limitation in information processing time.
44名男大学生尝试接住由一台机械投射机投出的草地网球。球总是在黑暗中被投出并在黑暗中被接住，但在其飞行过程中会被一根荧光灯管照亮一段恒定的短暂时间间隔。通过系统地操纵灯光熄灭和接球手接触之间的时间间隔，来改变被照亮的飞行部分。这个变量是被试内设计中的唯一因素。方差分析表明，接球成功率可靠地依赖于这个变量，并且与它呈倒“U”形函数关系。从预测能力和信息处理时间可能存在的限制方面对结果进行了讨论。
