Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
PLoS One. 2010 Dec 3;5(12):e14208. doi: 10.1371/journal.pone.0014208.
An infant's own name is a unique social cue. Infants are sensitive to their own name by 4 months of age, but whether they use their names as a social cue is unknown. Electroencephalogram (EEG) was measured as infants heard their own name or stranger's names and while looking at novel objects. Event related brain potentials (ERPs) in response to names revealed that infants differentiate their own name from stranger names from the first phoneme. The amplitude of the ERPs to objects indicated that infants attended more to objects after hearing their own names compared to another name. Thus, by 5 months of age infants not only detect their name, but also use it as a social cue to guide their attention to events and objects in the world.
婴儿的名字是独特的社会线索。4 个月大的婴儿就能对自己的名字产生敏感，但他们是否将自己的名字用作社会线索尚不清楚。研究人员通过测量婴儿听到自己的名字或陌生人的名字时以及看新物体时的脑电图（EEG）来进行研究。对名字的事件相关脑电位（ERPs）反应表明，婴儿从第一个音素开始就能区分自己的名字和陌生人的名字。对物体的 ERPs 幅度表明，与听到另一个名字相比，婴儿在听到自己的名字后会更多地关注物体。因此，到 5 个月大时，婴儿不仅能察觉到自己的名字，还会将其用作社会线索，引导他们关注世界上的事件和物体。
