Infants' attention to patterned stimuli: Developmental change from 3 to 12 months of age
Infants' attention to patterned stimuli: Developmental change from 3 to 12 months of age
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DOI：
10.1111/j.1467-8624.2006.00897.x
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发表时间：
2006-05-01
影响因子：
4.6
通讯作者：
Richards, JE
中科院分区：
文献类型：
--
作者：
Courage, ML;Reynolds, GD;Richards, JE
为了研究作为年龄和刺激类型的函数的注视持续时间的发展，14- 52周大的婴儿被展示了静态和动态版本的面孔，芝麻街材料，以及20 s积累注视的非彩色图案。心率被记录在寻找和解析成刺激定向，持续的注意力和注意力终止阶段。婴儿的峰值注视持续时间表明，在26周之前，所有刺激都随年龄呈线性下降。年龄较大的婴儿对图案的注视持续时间继续下降，但对芝麻街和面孔的注视持续时间增加。持续注意力过程中心率变化的测量以及注意力每个阶段所花时间的比例证实了婴儿对更复杂刺激的参与程度更高。
To examine the development of look duration as a function of age and stimulus type, 14- to 52-week-old infants were shown static and dynamic versions of faces, Sesame Street material, and achromatic patterns for 20 s of accumulated looking. Heart rate was recorded during looking and parsed into stimulus orienting, sustained attention, and attention termination phases. Infants' peak look durations indicated that prior to 26 weeks there was a linear decrease with age for all stimuli. Older infants' look durations continued to decline for patterns but increased for Sesame Street and faces. Measures of heart rate change during sustained attention and the proportion of time spent in each phase of attention confirmed infants' greater engagement with the more complex stimuli.