Rosenberg A A, Kagan J
University of California, Berkeley 94708.
Dev Psychobiol. 1989 Dec;22(8):753-70. doi: 10.1002/dev.420220802.
Previous investigations have suggested that the temperamental quality of inhibition is related to the threshold of reactivity to unfamiliar events within certain limbic structures. In earlier work, children in three independent samples who had been selected to be inhibited were more likely to have blue than brown eyes, whereas uninhibited children were more likely to have brown eyes. The present study, which selected two-year-old children on the basis of eye color (blue or brown) rather than behavior, found a significant association between blue eyes and behavioral inhibition, and between brown eyes and an uninhibited style. Although the inhibited children were more likely to have a high and stable heart rate than were the uninhibited children, there was no relation between eye color and these cardiac measures. Several interpretations of the association between these temperamental categories and iris pigmentation are proposed.
先前的研究表明，抑制性的气质特质与某些边缘结构内对不熟悉事件的反应阈值有关。在早期的研究中，从三个独立样本中挑选出的具有抑制性的儿童中，蓝眼睛的比棕眼睛的更常见，而无抑制性的儿童则更可能是棕眼睛。本研究基于眼睛颜色（蓝色或棕色）而非行为挑选出两岁儿童，发现蓝眼睛与行为抑制之间、棕眼睛与无抑制性风格之间存在显著关联。尽管具有抑制性的儿童比无抑制性的儿童更可能有较高且稳定的心率，但眼睛颜色与这些心脏指标之间并无关联。文中提出了对这些气质类别与虹膜色素沉着之间关联的几种解释。
