In the 1920s, Gerstmann described a set of problems found in people who have

游客2024-01-10  21

问题     In the 1920s, Gerstmann described a set of problems found in people who have suffered damage to the brain’s left parietal lobe, problems that include being unable to understand arithmetic and having difficulty identifying one’s fingers. There is still no agreement on whether the symptoms Gerstmann noticed constitute a syndrome, but the parts of the brain used for storing facts about numbers and for representing the fingers are close to each other. Mental representations of numbers and of fingers may therefore be functionally connected. A 2005 experiment had people perform some tasks requiring dexterity and others involving matching pairs of numbers, while an area of their parietal lobes—the left angular gyrus—was stimulated by a magnetic field. Facility at both sets of tasks was impaired. [br] The author of the passage would most likely agree that the highlighted statement suggests

选项 A、a flaw in the experiment conducted in 2005
B、a means by which dexterity might compensate for a loss of arithmetic ability
C、an explanation for some of Gerstmann’s observations
D、an anomaly in some of Gerstmann’s results
E、a reason to doubt damage to the left parietal lobe as a causal factor in certain symptoms

答案 C

解析 古茨曼的观察是左顶叶受损使两种能力受到破坏,而正是因为两个部分靠得很近,所以左顶叶这一个部位受损,两种能力都受影响,因此选项C正确。
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