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  3. [A] Over the past year, the prospective brain hypothesis has gained steady support among neuroscientists. An intriguing possibi

[A] Over the past year, the prospective brain hypothesis has gained steady support among neuroscientists. An intriguing possibi

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问题     [A]  Over the past year, the prospective brain hypothesis has gained steady support among neuroscientists. An intriguing possibility raised by the hypothesis is that the primary role of human memory may not be to remember the past, but to imagine and prepare for the future. "Once things in the past are finished, there’s nothing you can do about them," Levine says.
    [B]   Brian Levine, a neuroscientist at the University of Toronto in Canada, is convinced that the data show a real decline in personal future imaginings. "I think that methodologically they have ruled out the other possible explanations," Levine says. He adds that the findings are consistent with other studies examining future thinking in humans. "The more interesting question is ’why?’", he says.
    [C]   Old age does more than stealthily steal away our most cherished memories: it also seems to diminish our ability to imagine things. This finding, detailed in the January issue of the journal Psychological Science, supports the "prospective brain" hypothesis, the idea that imagining the future and remembering the past rely on the same neural machinery. One implication of this study is that imagining is quite closely related to, and dependent on, remembering, perhaps more so than we previously realized, Dan Schacter of Harvard University says.
    [D]  In the study, Schacter and his team asked groups of young and old participants, with average ages of 25 and 72, respectively, to recount a personal episode from their past or imagine a personal experience in their future in response to cue words. Details in the participants’ narratives were categorized as either "internal" or "external". Internal memories are similar to scenes from a movie: they contain specific subjects and take place in particular settings and time periods. External memories consist mostly of general facts about the world, such as "the sky is blue". As expected, results showed that the past accounts of the older participants’ tales contained fewer, and less detailed, internal memories than those of the younger group. This deficit also extended to their future imaginings.
    [E]  In contrast, an older participant’s response to the same cue word was: "The scene is I’m just driving along, in the Saab, and... not worrying about high energy costs..." It wasn’t that the older group had trouble speaking or spoke less, the researchers found. The older people scored normally on verbal tests, and they talked at length about non-personal external memories.
    [F]  A young participant asked to imagine a personal scene in response to the cue word "engine", for example, might envisage themselves driving in a red convertible along California’s Pacific Coast Highway one weekend over the summer. They might describe seagulls circling overhead, the feel of the wind mussing their hair, and the smell of the salt air as they round a particular comer.
    [G]  The researchers speculate that personal memories are particularly susceptible to ageing because they rely heavily on "relational processing", the ability to mentally summon and join unique pieces of information, such as where and when an experience occurred. Stitching the particulars of a scene together—be it real or imagined—gets more difficult with age.
    【D6】→【D7】→【D8】→【D9】→B→【D10】→A
【D7】
选项
答案D
解析 上一段(即C)简要介绍了一项关于记忆力和想象力的研究结果。由此推测，下文应该会接着介绍这项研究的具体情况。D的内容符合要求，其开头的the study即指上段所讲的研究。E开头的In contrast表明上文应与E首句形成对比，但C段末讲的是研究得出的结果，不能与E首句描述的具体情况构成对比，故不选E。F为其中一类研究对象的反应情况，放在此处缺乏对该研究大致情况的交代，显得十分突兀，故F不能与C衔接。G是对研究结果的深层原因的探究，不可能位于这么靠前的位置，故G也排除。最终确定本题答案为D。
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