Field T M, Woodson R, Greenberg R, Cohen D
Science. 1982 Oct 8;218(4568):179-81. doi: 10.1126/science.7123230.
Human neonates (average age, 36 hours) discriminated three facial expressions (happy, sad, and surprised) posed by a live model as evidenced by diminished visual fixation on each face over trials and renewed fixations to the presentation of a different face. The expressions posed by the model, unseeen by the observer, were guessed at greater than chance accuracy simply by observing the face of the neonate, whose facial movements in the brow, eyes, and mouth regions provided evidence for imitation of the facial expressions.
人类新生儿（平均年龄36小时）能够区分由真人模特摆出的三种面部表情（开心、悲伤和惊讶），这一点可通过以下现象得到证明：在多次试验中，新生儿对每张脸的视觉注视时间减少，并且当呈现不同的脸时，他们会重新产生注视。仅仅通过观察新生儿的面部，观察者就能以高于随机概率的准确率猜出模特摆出的、其并未看到的表情，新生儿在眉毛、眼睛和嘴巴区域的面部动作提供了模仿面部表情的证据。
