抄録
This longitudinal research examined an infant’s walking in the house for three months
from the onset of walking, in order to describe where the behavior typically occurred.
The beginning and end of locomotion were defined, and units of locomotion broken
down into three aspects: 1. the posture at the beginning and the end of one unit, 2.
locations where the locomotion began and concluded, and 3. paths of locomotion. The
results for each of these aspects of locomotion were as follows, 1. Locomotion started
from a sitting position in which the infant frequently touched the small objects coin-
cided with carrying it at 80%. 2. From the erect position walking tended to commence
in the surrounding area where the infant could hold on to items for support. 3.Loco-
motion in one room was observed most frequently, though locomotion that crossed into
other areas increased in the latter half of the three-month observation period. Travel
diversified among areas that afforded the infant various activities, including passing
through the area. However, some paths were frequently observed. These results sug-
gest that the locomotion is conditioned by information of the surroundings, and the
development of infant locomotion is characterized by the increasing connections to a
variety of places in the house.
