Adams R J
Department of Psychology, Memorial University of Newfoundland, St. Johns.
Dev Med Child Neurol. 1989 Oct;31(5):650-6. doi: 10.1111/j.1469-8749.1989.tb04051.x.
The visual habituation of two groups of newborn infants was tested at a mean age of 2.9 days with large achromatic squares of varying luminance. Mothers of the infants in one group received no medication during labour; mothers in the second group received a single dose of the synthetic narcotic alphaprodine hydrochloride. The two groups did not differ in the number of trials to reach the criterion, but newborns in the no-medication group fixated the stimuli for much longer periods than did infants in the alphaprodine group. First-fixation times of babies in the alphaprodine group were shorter when drug-to-delivery intervals were longer. These results, although tentative, imply that babies of medicated and unmedicated mothers differ in the manner in which they respond to visual stimuli.
在平均年龄为2.9天时，用不同亮度的大型消色差方块对两组新生儿进行了视觉习惯化测试。一组婴儿的母亲在分娩期间未用药；第二组母亲接受了单剂量的合成麻醉剂盐酸阿法罗定。两组达到标准所需的试验次数没有差异，但未用药组的新生儿注视刺激的时间比阿法罗定组的婴儿长得多。当药物与分娩间隔时间较长时，阿法罗定组婴儿的首次注视时间较短。这些结果虽然是初步的，但意味着用药母亲和未用药母亲的婴儿对视觉刺激的反应方式有所不同。
