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美国波士顿儿童医院医疗中心的儿科专家T·B·布雷泽尔顿认为,婴儿在孕期6个月时就已经具有敏锐的感觉。当孕妇围着测验胎儿反应的腹带进入光线强烈的、有刺激声音的房间,胎儿就会惊跳,相反,柔和的光线和声音对他们具有吸引力。同样,当孕妇的情绪发生变化时,比如不愉快的情绪产生时,胎儿也会躁动不安,而当孕妇情绪愉快、满意时,胎儿则显得安静平和,这种反应有很大的自主性。婴儿落地后,感觉就更加敏锐,能辨别母亲和儿科医生的声音,还能区别大小不同的方格图案。例如在一个视崖实验里,吉布生和沃克用视崖测量婴儿的深度知觉。视崖是一种特制的
TB Brettzelton, a pediatrician at the Boston Children’s Hospital Medical Center in the United States, believes babies are already keenly aware at 6 months of pregnancy. When pregnant women test the fetus reaction around the abdomen into the light, irritating sound room, the fetus will be shocked, on the contrary, soft light and sound attractive to them. Similarly, when pregnant women’s mood changes, such as unpleasant emotions, the fetus will be restless, and when the pregnant women happy, satisfied, the fetus appears to be quiet and peaceful, this response has a great deal of autonomy. After the baby landed, the feeling is even more acute, to distinguish the voice of the mother and pediatrician, but also to distinguish between different sizes of squares pattern. For example, in a cliff experiment, Gibson and Walker use the cliff to measure the baby’s depth perception. Cliff is a special purpose