Disentangling the Effects of an Adult Model's Eye Gaze and Head Orientation on Young Infants' Processing of a Previously Attended Object
Disentangling the Effects of an Adult Model's Eye Gaze and Head Orientation on Young Infants' Processing of a Previously Attended Object
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DOI：
10.1111/infa.12035
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发表时间：
2014-01-01
期刊：
影响因子：
2.6
通讯作者：
Pauen, Sabina
中科院分区：
文献类型：
--
作者：
Hoehl, Stefanie;Wahl, Sebastian;Pauen, Sabina
为了解开成人模型的眼睛注视和头部方向对婴儿处理成人关注的物体的影响，我们向4个月大的婴儿展示了以下两种面孔：（1）在头部保持静止的情况下将眼睛注视朝向或远离物体;或（2）在保持注视指向正前方的情况下转动头部。采用眼动追踪和事件相关电位测量婴儿对先前有人照看和无人照看物体的反应。在这两种情况下，婴儿的对象，而不是提示成人的头部或眼睛的目光转移更多的视觉注意力和增加负中央（NC）组件相对于提示对象。这表明有提示的对象已被更有效地编码，而无提示的对象需要进一步处理。我们的结论是，眼睛凝视和头部方向独立作为线索，直接婴儿的注意力和对象处理。当呈现在运动中时，头部方向和眼睛注视甚至会覆盖来自另一种线索的不一致的静止信息的效果。
In order to disentangle the effects of an adult model's eye gaze and head orientation on infants' processing of objects attended to by the adult, we presented 4-month-olds with faces that either (1) shifted eye gaze toward or away from an object while the head stayed stationary or (2) that turned their head while maintaining gaze directed straight ahead. Infants' responses to the previously attended and unattended objects were measured using eye-tracking and event-related potentials. In both conditions, infants responded to objects that were not cued by the adult's head or eye gaze shift with more visual attention and an increased negative central (Nc) component relative to cued objects. This suggests that cued objects had been encoded more effectively, whereas uncued objects required further processing. We conclude that eye gaze and head orientation act independently as cues to direct infants' attention and object processing. Both head orientation and eye gaze, when presented in motion, even override the effects of incongruent stationary information from the other kind of cue.