The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster homes. Peter was reared by parents of low intelligence in an isolated community with poor education al opportunities. Mark was reared in the home of well to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's I.Q. was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.
According to the passage, the average I.Q. is ______.
A.85
B.100
C.110
D.125
第1题
A.简称ERP
B.一种使用电生理指标记录大脑活动的方法。
C.脑在活动时,大量神经元同步发生的突后电位经总和后形成的。
D.记录大脑活动时的电波变化,
E.脑神经细胞的电生理活动在大脑皮层或头皮表面的总体反映。
第4题
A.1929年,汉斯在人的头皮上首先记录到了脑电
B.脑电一经发现,大家就马上接受了它,没有争议
C.脑电只在特殊的活人头上才会出现
D.在植物人头上,没有脑电
E.刚刚死亡的人头上,没有脑电
第5题
关于吸入麻醉药对脑代谢率的影响,叙述正确的是()。
A.与麻醉深度无关
B.与剂量无关
C.与癫痫样脑电活动无关
D.与脑电活动有关
E.与时间常数有关
第6题
癫痫发作是由()。
A、脑内胶质细胞阵发性超同步化电活动的临床表现
B、脑内神经元阵发性超同步化电活动的临床表现
C、脑内胶质细胞阵发性非同步化电活动的临床表现
D、脑内神经元阵发性非同步化电活动的临床表现
E、脑内神经元和胶质细胞阵发性超同步化电活动的临床表现
第7题
关于动态心电图仪磁带记录特点的表述,不正确的是
A、可提供长时程心电活动记录
B、允许重放和询问整个记录过程
C、经A/D转换可造成波形失真
D、对心肌缺血的判断具有特殊的优势
E、磁带上的心电信息不能永久保存
第8题
关于脑电生理活动,陈述正确的是
A、神经元间的信息传递都是通过电传递完成的
B、神经元只有动作电位,没有静息电位
C、脑电活动可单独用于对异常的心理活动的诊断
D、脑电图可用于描记脑自发电位
E、事件相关电位属于脑自发电位
第9题
关于脑电生理活动,陈述正确的是()
A、神经元间的信息传递都是通过电传递完成的
B、神经元只有动作电位,没有静息电位
C、脑电活动可单独用于对异常的心理活动的诊断
D、脑电图(EEG)可用于描记脑自发电位
E、事件相关电位属于脑自发电位
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