Winer G A
Percept Mot Skills. 1975 Aug;41(1):291-8. doi: 10.2466/pms.1975.41.1.291.
First graders were tested on trials requiring the discrimination and transposition of right-left relations, with stimuli similar to (dolls) or different from (toy planes) the body. On an initial series of training and practice trials children were allowed to respond to body and external objects as referents providing right-left cues. A later series of test trials was then used to determine the referent the child actually preferred. Results of the test trials indicated that 24 children tested with the dolls preferred the body as referent, while 24 children tested with planes preferred the external referent. The results were interpreted as suggesting two alternative systems through which children develop an understanding of right-left relations and possibly other concepts as well.
对一年级学生进行了测试，测试要求他们辨别和转换左右关系，所使用的刺激物与身体相似（玩偶）或不同（玩具飞机）。在最初一系列的训练和练习测试中，允许儿童以身体和外部物体作为提供左右线索的参照对象做出反应。随后进行了一系列测试，以确定儿童实际偏好的参照对象。测试结果表明，用玩偶进行测试的24名儿童更倾向于以身体作为参照对象，而用玩具飞机进行测试的24名儿童则更倾向于以外在参照对象。这些结果被解释为表明儿童通过两种替代系统来理解左右关系，并且可能也理解其他概念。
