People living in the countryside had the lowest levels of activity in their amygdalas. Those livingin towns had higher levels. City dwellers had the highest. Not that surprising, to those of aShelleyesque disposition. In the case of the pACC, however, what mattered was not wheresomeone was living now, but where he or she was brought up. The more urban a personschildhood, the more active his pACC, regardless of where he was dwelling at the time of theexperiment.
生活在乡村的人杏仁核活动水平最低。生活在城镇的人的杏仁核活动水平高些。城市居民杏仁核活动水平最高。对于雪莱式性情的人,这没有什么奇怪的。然而,在扣带皮层部位情况下,重要的不是一个人现在生活在哪,而是他或他在那长大。不管在实验的时候他住在哪,只要一个人的童年时期生活在城市的时间越长,他的扣带皮层部位就越活跃。
The amygdalas thus seem to respond to the here-and-now whereas the pACC is programmedearly on, and does not react in the same, flexible way as the amygdalas. Second-to-secondchanges in its activity might, though, be expected to be correlated with changes in theamygdalas, because of its role in regulating them. fMRI allows such correlations to bemeasured.
虽然扣带皮层部位控制着杏仁核,但似乎杏仁核是此时此刻的及时回应,扣带皮层部位并没有像杏仁核那样做出相同,柔性的反应。扣带皮层部位接下来每秒钟活动的变化,也许与杏仁核的变化有关,因为扣带皮层部位控制着杏仁核。 fMRI 显示了这样的测量关系。
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