2. 外语
  3. Thousands, perhaps even millions, of people around the world are afflicted with a neurological condition called synesthesia. The

Thousands, perhaps even millions, of people around the world are afflicted with a neurological condition called synesthesia. The

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问题 Thousands, perhaps even millions, of people around the world are afflicted with a neurological condition called synesthesia. The word synesthesia comes from the Greek words syn, which means "together," and aisthesis, which means "perception or sensation." Those affected by the disorder experience an involuntary, simultaneous joining of two senses; for example, some synesthetes—people with synesthesia— perceive words as colors. Researchers do not know the causes of synesthesia, nor do they fully understand the mechanisms of the disorder. However, some scientists believe that synesthesia results from crossed connections in the brain; synapses that are traditionally associated with one sensory system have somehow crossed over into another sensory system, which leads to a juxtaposition of two, typically unrelated senses. Synesthetic perceptions are idiosyncratic, and are as varied as the perceivers themselves. Theoretically, the number of types of synesthesia is bound only by the sensory pairings themselves, such as the color/sound pairing mentioned previously. Researchers estimate that there could be as many as 35 different broad pairings— sound/touch, taste/hearing, and so on—each characterized by many permutations and unique features. Indeed the variations could be endless, with each synesthete perceiving a slightly different color or sensation, for example. Although the perceptions vary among individuals, according to Dr. Richard Cytowic, a leading synesthesia expert, the lifelong inter-sensory associations of die synesthetes remain stable, no matter what senses are joined in a given synesthete.
Select the sentence that best describes the scope of the sensory disorder.
选项
答案"Researchers estimate...permutations and unique features."
解析 The best answer is: "Researchers estimate that there could be as many as 35 different broad pairings—sound/touch, taste/hearing, and so on— each characterized by many permutations and unique features." This sentence gives an idea of how synesthesia might manifest itself(sound/ touch, etc.)as well as the number of such pairings(35). It also suggests that these pairings may separate into subgroupings. Together, these give the reader an idea of the scope of the disorder.
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