单项选择题

What’s your earliest childhood memory Can you remember learning to walk Or talk The first time you heard thunder or watched a television program Adults seldom (1) events much earlier than the year or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.
A variety of explanations have been (4) by psychologists for this " childhood amnesia " . One argues that the hippocampus, the region of the brain which is (5) for formling memories, does not mature until about the age of two. But the most popular theory (6) that, since adults don’t think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) —one event follows another as in a novel or film. (9) , when they search through their mental (10) for early childhood memories to add to this verbal life story, they don’t find any that fit the (11) . It’s like trying to find a Chinese word in an English dictionary.
Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues that there simply aren’t any early childhood memories to recall. According to Dr. Simms, children need to learn to use someone else’s spoken (13) of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long-term memories. (16) , children have to talk about their (17) and hear others talk about them—Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Ocean Park. Without this (19) reinforcement, says Dr.Simms, children cannot form (20) memories of their personal experiences.

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