The final task tested understanding: the subjects had to decide, for example, whether the words senator and congressman belong in the same category.
Men and woman showed a difference in brain use only on the rhyming task. In both sexes, trying to recognize thymes led to increased blood flow in the inferior frontal gyrus of the left hemisphere- Broca's area, as it's commonly called- -which has long been linked to language ability. In men that was the only active region, whereas 11 of the 19 women also showed activation in the corresponding region in the right hemisphere. The women's brains weren't working any harder overall; the work was just spread out more.“The accuracy was very comparable," Sally Shaywitz says. "It may be that there are just different routes in the brain to get to the same results."
【正确答案】:最后一项任务检查理解:例如,受试者需决定参议员和众议员这些词是否属于同一范畴。
男人和女人使用大脑只有在做与音韵有关的事情时才表现出不同。无论是男性还是女性,在辨认音韵时,大脑左半球脑回前下部的血液量增加。这个区域通常称作布洛卡区,长期以来被认为与语言能力有关。男性在辨认音韵时,它是唯一的兴奋区,而在19位女受试者中就有11位右半球的相应部位也表现出兴奋。这并不是说女性大脑总的工作强度大一些,而是相同强度的工作由多个区域来承担。“其精度完全相同,”萨莉史维获说,“结果也完全相同,只是大脑工作方式不同而已。