原田英語の時事英語ジュニア|英語ニュース ワークシート(高校生レベル)
Class ____ No. ____ Name ____________________
興味のない勉強がつらいのはなぜ?「おもしろい」で覚えると脳の負担が軽い 147人の実験
Learning Out of Interest May Take Less Effort Than Working for Money, Study Suggests
1Learning something because it is interesting may improve memory with less mental effort than working for money, according to a study by researchers in Paris. The study was published on Oct. 31 in the journal Communications Psychology.
2Some students work hard at a subject because they enjoy it, while others do it to get good grades. Psychologists call the first reason intrinsic motivation and the second extrinsic motivation. Many models of effort treat the two as working in the same way. Jade Seguin and Mathias Pessiglione of the Paris Brain Institute proposed that interest works without the costly effort that rewards require.
3To test the idea, they ran a series of experiments with 147 volunteers. The volunteers memorized information and rated how interesting they found it. They could also win different amounts of money for correct answers. Both higher interest and larger rewards led to better memory.
4The two kinds of motivation differed in the volunteers' eyes. The team measured pupil size as a sign of mental effort. When the volunteers reached the same level of memory, only money made their pupils grow larger. Money also activated areas at the front of the brain that help people control their thinking, the researchers reported at a conference in May.
5The researchers said working out of interest may lower the demand for effort and help prevent fatigue. Their study measured memory in experiments and did not follow students in real classes.
Words 単語
| improveA2 | 動 | よくする、向上させるto make something better |
| journalB1 | 名 | 学術誌、専門誌a magazine that reports new research |
| intrinsic外 | 形 | 内からの、本来の(intrinsic motivation で内発的動機づけ)coming from inside a person or thing |
| motivationB1 | 名 | やる気、動機づけthe reason or wish to do something |
| proposedB2 | 動 | 提案した(propose の過去形)offered an idea for others to think about |
| rewardsB1 | 名 | ごほうび、報酬(reward の複数形)things you get for doing something well |
| seriesB1 | 名 | 一連のもの、シリーズa group of similar things that come one after another |
| memorizedB1 | 動 | 暗記した(memorize の過去形)learned something so you can remember it exactly |
| activated外 | 動 | 活発にした、働かせた(activate の過去形)made something start working |
| fatigue外 | 名 | 疲れ、疲労the feeling of being very tired |
単語のレベル:CEFR-J(『CEFR-J Wordlist Version 1.6』 東京外国語大学投野由紀夫研究室. (URL: https://www.cefr-j.org/download.html より 2026年8月ダウンロード))
1. Reading Quiz 本文の内容に合うものを選ぼう
What do psychologists call studying because a subject is interesting?
A. Extrinsic motivationB. Intrinsic motivationC. A rewardD. Fatigue
What did the volunteers do in the experiments?
A. They memorized information and rated how interesting it was.B. They took a real school exam.C. They paid money for each answer.D. They tested their eyesight.
What led to better memory?
A. Only larger rewardsB. Only higher interestC. Smaller pupilsD. Both higher interest and larger rewards
When the volunteers reached the same level of memory, what made their pupils grow larger?
A. InterestB. Both interest and moneyC. Only moneyD. Neither interest nor money
What is true about the study?
A. It followed students in real classes.B. It measured memory in experiments.C. It was published in May.D. It tested 1,470 volunteers.
2. True or False 正しければ T、違っていれば F
( ) The study was done by researchers in Paris.
( ) Many models of effort treat intrinsic and extrinsic motivation as working in different ways.
( ) The team measured pupil size as a sign of mental effort.
( ) The researchers said working out of interest may cause more fatigue.
3. Fill in the Blanks 下の語から選んで空らんをうめよう(形を変えずに)
intrinsicmotivationproposedimprovejournalrewards
The two kinds of _____ differed in the volunteers' eyes.
Jade Seguin and Mathias Pessiglione of the Paris Brain Institute _____ that interest works without the costly effort that rewards require.
Both higher interest and larger _____ led to better memory.
Learning something because it is interesting may _____ memory with less mental effort than working for money, according to a study by researchers in Paris.
The study was published on Oct. 31 in the _____ Communications Psychology.
Psychologists call the first reason _____ motivation and the second extrinsic motivation.
4. Word Order 語を並べかえて正しい文にしよう
( in / two / the / of / kinds / The / motivation / volunteers' / differed / eyes ) .
( rewards / larger / led / interest / memory / Both / to / better / higher / and ) .
( win / also / amounts / They / different / money / answers / of / correct / for / could ) .
5. Think and Write 英語で答えてみよう
Some schools give students rewards, like prizes or points, for good grades. Do you think this is a good idea? Why or why not?(よい成績に、賞品やポイントなどのごほうびを出す学校があります。これはよい考えだと思いますか?理由も考えよう。)
Think of a time you learned something easily because you were interested in it. What was it?(興味があったから楽に覚えられたことはありますか?それは何でしたか?)
Answers 解答
1. (1) B (2) A (3) D (4) C (5) B
2. (1) T (2) F (3) T (4) F
3. (1) motivation (2) proposed (3) rewards (4) improve (5) journal (6) intrinsic
4.
- The two kinds of motivation differed in the volunteers' eyes.
- Both higher interest and larger rewards led to better memory.
- They could also win different amounts of money for correct answers.
全文訳
1おもしろいと感じて何かを覚えるほうが、お金のために覚えるより、少ない頭の努力で記憶をよくできるのかもしれないことが、パリの研究者たちの研究でわかりました。この研究は、10月31日に学術誌「コミュニケーションズ・サイコロジー」に発表されました。
2教科をがんばる生徒には、楽しいからという人もいれば、よい成績をとるためという人もいます。心理学者は、前者を「内発的動機づけ」、後者を「外発的動機づけ」と呼びます。努力についての多くの理論は、この2つを同じしくみで働くものとして扱っています。パリ脳研究所のジャド・スガンさんとマティアス・ペシリオーヌさんは、ごほうび(お金)のときに必要な負担の大きい努力をしなくても、興味は力を発揮する、という考えを出しました。
3この考えを確かめるため、2人は147人の参加者で一連の実験をしました。参加者は情報を覚え、それがどのくらいおもしろいと感じたかを答えました。また、正しく答えるともらえるお金の額も、いろいろでした。興味が高いほど、またごほうびが大きいほど、よく覚えていました。
42種類の動機づけのちがいは、参加者の目に表れました。研究チームは、頭のがんばりのしるしとして、ひとみの大きさをはかりました。同じくらい覚えたとき、ひとみが大きくなったのは、お金のときだけでした。お金のときは、考えをコントロールするのを助ける脳の前の方の部分も活発になったと、研究者たちは5月の学会で報告しました。
5研究者たちは、興味から取り組むと、必要な努力が少なくなり、疲れがたまるのを防げるのかもしれないと述べています。この研究は実験で記憶をはかったもので、実際の授業の生徒を追ったものではありません。
文法ポイント:不定詞の目的(to + 動詞の原形「~するために」)
「~するために」と目的を表す。本文の others do it to get good grades(よい成績をとるためにそうする人もいる)や、To test the idea, they ran a series of experiments(その考えを確かめるために、実験をした)がその例。
出典:Communications Psychology(Nature Portfolio)、SBDM 2026(Paris Brain Institute で開かれた学会) ほか(記事は原田英語の時事英語ジュニアのオリジナル)|https://www.haradaeigo.com/jijieigo-junior/news/2026-11-10-interest-memory-less-effort/