A MEASURE OF VIGILANCE IN INFANCY
A MEASURE OF VIGILANCE IN INFANCY
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DOI：
10.1016/0163-6383(90)90002-p
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发表时间：
1990-01-01
影响因子：
2.1
通讯作者：
PARRINELLO, R
中科院分区：
文献类型：
--
作者：
RUFF, HA;CAPOZZOLI, M;PARRINELLO, R
These studies were designed to investigate visual vigilance, that is, attention to the location of an anticipated event, in infants. The general paradigm was to present the infants with interesting puppet events, with intervals between events ranging from 5 to 25 seconds. The dependent measure was the amount of time the infant spent looking between events at the place of the events'' occurrence. In the first study with infants of 5, 7, 9, and 11 months, there were no age differences in the duration of looking either at the events themselves or at the place of the puppet''s appearance and disappearance during the intervals between events. Compared to the inter-event looking of younger infants, however, the looking of the 9- and 11-month-olds was composed less of looks that were continuations of looks at the puppet before it disappeared and more of looks at that place later in the inter-event intervals. In two other studies of 10-months-olds, the amount of looking at the place of occurrence during inter-event intervals was influenced by the salience of those events, suggesting that effects of motivation. In all studies, the variation among individuals was high; in addition, the correlations between the first half of the session and the second half were strong and positive. The results suggest that elements of vigilance are present at an early age, and that there are consistent individual differences in the extent to which such attention is maintained.
