Developmental analysis of locomotive behaviour during free play activities in infants.

研究了空间词的特征（行为范围、车站功能、火车头功能等）与游戏能力发展的关系。本研究的目的是观察7名1 ~ 4岁婴儿在陌生环境中的运动行为。记录方法为超声波定位仪（竹井公司）和录像机。结果如下。1)机车性能的定量指标，如机车转向架的距离，范围和速度，随着年龄的增长而增加。2)机务段有几个站（基地）。3）最显眼的站是母亲周围。4)其他的是围绕玩具盒，家具和其他成人。5)有两种类型的机车货车，圆形的，他们已经走过了几个站和一轮，他们从一个站到另一个站。6)兄弟姐妹的加入促进了运动行为，否则会被不熟悉的婴儿抑制。

We studies the relationships between characters of spatials(ranges of behavior,functions of station,locomotive truck and so forth) and developments of playing ability. Purpose of this study is the locomoyive behavior by 7 infants from aged 1 to 4 years in an unfamiliar situation. Methods for recording are ultra sonic locomotion locator (TAKEI & Company,Ltd) and VTR.The results are as follows. 1) Quantitative indication of locomotive behavior such as distance of locomotive truck, range and speed are increasing according to age of years. 2) There are several stations (bases) in the locomotive range.3) The most dintinguished station is around mother. 4) Others are around toy box,furniture and other adults. 5) There are two types of locomotive trucks,circular type in which they have traveled several stations and a round in which they traveled from one station to another. 6) Locomotive behaviors are facilitated by joining siblings, otherwise inhibited by unfamiliar infants.