Harper L V, Kraft R H
Department of Applied Behavioral Sciences, University of California at Davis 95616.
Percept Mot Skills. 1994 Dec;79(3 Pt 1):1091-102. doi: 10.2466/pms.1994.79.3.1091.
In Study I, 24 children at the average ages of 41.1 and 46.1 mo. were presented dichotic digits while another 27 children were tested at average ages of 40.0, 49.6, and 54.6 mo. In Study II, 40 children were tested at average ages of 50.7 and again at 91.8 mo. No significant change in right-ear advantage (REA) appeared across 4- or 9-mo. intervals; however, significant increases were found over the 14-mo. (Study I) and 41-mo. (Study II) intervals. There were no significant effects of sex or phenotypic or family history of handedness.
在研究I中,向平均年龄为41.1个月和46.1个月的24名儿童呈现双耳数字,而另外27名儿童分别在平均年龄为40.0个月、49.6个月和54.6个月时接受测试。在研究II中,40名儿童在平均年龄50.7个月时接受测试,之后在91.8个月时再次接受测试。在4个月或9个月的时间间隔内,右耳优势(REA)没有出现显著变化;然而,在14个月(研究I)和41个月(研究II)的时间间隔内发现了显著增加。性别、利手的表型或家族史没有显著影响。