The Flexibility of the Human Brain: Breaking Connections and Forming New Ones
- Researchers have found that the human brain is not fixed by adulthood, but rather it is highly flexible.
- Nerve cells in the brain routinely break old connections and form new ones, allowing the brain to reprogram itself and alter its functioning.
- This discovery challenges the previous belief that the brain's connections were fixed and highlights the plasticity of the adult mind.
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高校英語 和訳お願いします。。。
少し長めです。訳せたのですが、文法（関係詞など）が イマイチわかりません。 どなたか和訳と、文法の手助けをお願いします！ " "の中に , （カンマ）が入っている理由もよくわかりません。 the human brain is almost infinitely flexible. people used to think that the human brain, the dense connections formed among the 100 billion or so neurons inside our heads, was fixed by the time we rearched adulthood. But researchers have discovered that that's not the case. Tom, a professor of neuroscience who directs the Kransnow Institure for Advanced Study ar George Mason University, says that even the adult mind " is very plastic " Nerve cells routinely brrek old connections and from new ones. "The brain, " according to Olds, " has the ability to reprogram itself, altering the way it functions."
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人間の脳はほとんど無限に柔軟です。人々は以前は、私たちの頭の中で1000億ほどのニューロン間で形成された高密度の接続である、人間の脳は、私たちが成人期に達するころまでには（ニューロンの接続が）固定されると考えていました。しかし、研究者は、そうではないということを発見しました。 ジョージメイソン大学のクランスノー高等研究所を指導する神経科学の教授のトムは、成人の精神でさえ「非常に柔軟です」と言います。神経細胞は、常に、古い接続を破壊し、新しい接続を形成しているのです。オールズによれば、「脳にはそれ自体を再プログラムする能力があり、それ（脳）が機能する方法を変えるのです。」
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少し長いのですがお願いします。 自力で訳してみたものの、ところどころ関係詞で苦戦しています。。。 (1)The biggest trick that older brains employ is to use both sides of the brain at the same time to handle tasks for which younger brains rely on mainly one side. Electronic images taken by cognitive scientists at the University of Michigan, for example, have slown that even when doing basic recognition or memorization exercises, seniorsexploit the left and right brain more extensively than more men and women who are decades younger. Depending on both sides of the brain gives them a tactical advantage, even if the pure speed of each side's processing is slower. (2)Animal experiments prove that an undamaged nerve cell can take over the functions of a neighboring nerve cell that has become damaged or that has simply declined with time. The brain creats ways to keep itself sharp by making these kinds of adjustments on a widespread scale over time. お願いいたします！！！
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- 和訳あってますでしょうか。
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【1% that differs】のthatは文法上何を意味するのでしょうか。 ヒトのDNAは個体間で約99%が同一であるが、異なる１%のおかげで科学者は個人を識別することができる。 Roughly 99% of human DNA is identical between individuals, but the 【1% that differs】 allows scientists to distinguish. 【】内の部分が何故このような並びになるのかわかりません。 "1% differs" ではいけないのですか？ どなたか解説お願いします。
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