EigoPro 1級 読解 — Pain as Construction, Not Transmission

For much of the twentieth century, clinicians embraced a seductively simple model: pain was a faithful signal travelling from an injured tissue along dedicated nerves to a passive brain, its intensity proportional to the damage sustained. This conception, though intuitive, has been steadily dismantled. Contemporary neuroscience holds that pain is not detected but constructed — an output the brain generates after weighing nociceptive input against memory, expectation, attention, and perceived threat. The body furnishes data; the brain renders a verdict, and that verdict may diverge sharply from the physical state of the tissue itself. The evidence is difficult to dismiss. Soldiers have walked off battlefields with shattered limbs feeling little, while others writhe at a paper cut. Amputees report agony in limbs that no longer exist, a phantom suffering that no peripheral wound could possibly explain. Placebos demonstrably blunt pain, and anxiety reliably amplifies it; the same stimulus can feel trivial in one context and excruciating in another. None of this is explicable if pain merely mirrors tissue damage; all of it follows naturally if pain is instead a protective inference, calibrated to what the brain predicts will keep the organism safe rather than to what is objectively occurring in the flesh at any given moment. The implications for chronic pain are profound and unsettling. In persistent conditions, the nervous system can grow sensitised, sounding alarms long after tissues have healed — pain unmoored from injury, perpetuated by a brain that has, in effect, over-learned threat. Treatments that chase a peripheral lesion are therefore frequently confounded, because the lesion is no longer the problem. This reframing does not dismiss suffering as imaginary; the pain is unequivocally real. Rather, it relocates the therapeutic target from damaged tissue to the predictive machinery that manufactures the experience, vindicating approaches — graded exposure, pain education, cognitive retraining — that earlier paradigms dismissed as peripheral. To treat pain, in short, one must increasingly treat the brain that builds it.

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この単元の問題を3問、解説つきで公開しています

1級 · 読解 · 全5問

問 1

Which statement best captures the passage's central argument?

  • Placebos and anxiety are unreliable curiosities that neuroscience has been unable to incorporate into any coherent model of pain.
  • Chronic pain is largely imaginary, and patients should be reassured that their suffering has no real physiological basis.
  • Pain is a direct and proportional signal of tissue damage, so treatment should target the injured tissue more aggressively.
  • Pain is an inference the brain produces by weighing bodily signals against expectation and perceived threat, which redirects chronic-pain treatment toward the brain itself.
Phrase

pain is not detected but constructed

1級読解主旨把握論旨
⚡ひとことで

痛みは脳が構築する推論であり、治療標的を脳へ移すという論旨。

選択肢の解説Choice Analysis

「Pain is an inference the brain produces by weighing bodily signals against expectation and perceived threat, which redirects chronic-pain treatment toward the brain itself.」

正解

本文の中心主張は痛みが単なる伝達信号ではなく脳の生み出す推論だという点にある。"pain is not detected but constructed" と明示され、最終段で治療標的を組織から "the predictive machinery that manufactures the experience" へ移すと述べられる。この構築モデルと治療への含意の両方を含む選択肢が最も適切。

  • 「Pain is a direct and proportional signal of tissue damage, so treatment should target the injured tissue more aggressively.」

    = 痛みは組織損傷に比例する直接信号で組織を治療すべきだとする説 ━ 本文はこの直感的モデルを "steadily dismantled" と否定しており主張と逆。。

  • 「Chronic pain is largely imaginary, and patients should be reassured that their suffering has no real physiological basis.」

    = 慢性痛は想像上のもので生理的基盤がないと患者を安心させる説 ━ 本文は "the pain is unequivocally real" と明言し想像説を退けている。。

  • 「Placebos and anxiety are unreliable curiosities that neuroscience has so far been unable to incorporate into any coherent model of pain perception.」

    = プラセボや不安は一貫したモデルに組み込めない例外だとする説 ━ 本文はこれらを構築モデルが説明できる証拠として挙げており逆。。

▦Collocation
パターン意味例
weigh A against BAをBと比較考量するThe brain weighs nociceptive input against memory and expectation.
redirect the target toward標的を〜へ向け直すThe model redirects treatment toward the brain itself.
capture the argument論旨を捉えるThis statement best captures the central argument.
proportional to〜に比例してPain was thought proportional to the damage sustained.
perceived threat知覚された脅威Pain is calibrated to perceived threat, not actual damage.
❝例文

  • The brain weighs sensory data against past experience before issuing a verdict.

    脳は判定を下す前に感覚データを過去の経験と比較考量する。

  • Her central claim reframes how chronic pain ought to be treated.

    彼女の中心的主張は慢性痛をどう治療すべきかを再構成する。

  • The intensity was assumed proportional to the injury.

    強度は負傷に比例すると想定されていた。

  • This evidence cannot be explained by the old transmission model.

    この証拠は旧来の伝達モデルでは説明できない。

💡Tip · 覚えるコツ

主旨設問では「構築モデル」と「治療への含意」の両方を含む包括的な選択肢を選ぶ。片方だけの選択肢や本文が否定した立場は不正解。

問 2

According to the passage, what does the twentieth-century model assume about the brain's role in pain?

  • The brain is a passive recipient that merely receives a faithful signal from injured tissue.
  • The brain stores memories of injury that later intensify unrelated pain.
  • The brain actively predicts threat and generates pain as a protective output.
  • The brain suppresses pain signals whenever tissue damage is minor.
Phrase

to a passive brain

1級読解詳細把握
⚡ひとことで

旧モデルでは脳は信号を受け取るだけの受動的存在。

選択肢の解説Choice Analysis

「The brain is a passive recipient that merely receives a faithful signal from injured tissue.」

正解

第1段は旧モデルを "a faithful signal travelling ... to a passive brain" と描写する。脳は損傷組織からの忠実な信号を受け取るだけの受動的存在とされた。能動的予測や生成は現代神経科学の立場で旧モデルではない。

  • 「The brain actively predicts threat and generates pain as a protective output.」

    = 脳が脅威を予測し痛みを保護的出力として生成するとする説 ━ これは現代神経科学の立場であり旧二十世紀モデルの説明ではない。。

  • 「The brain suppresses pain signals whenever tissue damage is minor.」

    = 軽微な損傷時に脳が痛み信号を抑制するとする説 ━ 本文に旧モデルがこのような抑制を行うという記述はない。。

  • 「The brain stores memories of injury that later intensify unrelated pain.」

    = 脳が負傷の記憶を蓄え無関係の痛みを強めるとする説 ━ 本文の記憶は構築モデルの要素で旧受動モデルの説明ではない。。

▦Collocation
パターン意味例
a passive recipient受動的な受信者The old model cast the brain as a passive recipient.
a faithful signal忠実な信号Pain was seen as a faithful signal from the tissue.
travel along nerves神経に沿って伝わるThe signal was thought to travel along dedicated nerves.
receive input入力を受け取るA passive brain merely receives input.
proportional to the damage損傷に比例してIts intensity was proportional to the damage sustained.
❝例文

  • In the old view the brain simply received what the nerves delivered.

    旧来の見方では脳は神経が届けたものを単に受け取った。

  • A passive recipient does not interpret the signals it gets.

    受動的な受信者は受け取った信号を解釈しない。

  • The faithful signal was assumed to mirror the wound exactly.

    忠実な信号は傷を正確に映すと想定された。

  • This contrasts sharply with the active, predicting brain.

    これは能動的に予測する脳とは鋭く対照的だ。

💡Tip · 覚えるコツ

詳細設問では旧モデルと新モデルの記述を取り違えないこと。本文の時系列("For much of the twentieth century")の手がかりで立場を区別する。

問 3

Which example does the passage use to show that pain does not simply mirror tissue damage?

  • Athletes train themselves to ignore minor injuries through sheer willpower.
  • Children feel less pain than adults because their nerves are immature.
  • Soldiers leave battlefields with shattered limbs while feeling little pain.
  • Surgeons routinely operate on patients who report no pain under anaesthesia.
Phrase

with shattered limbs feeling little

1級読解詳細把握
⚡ひとことで

砕けた四肢でほとんど痛みを感じない兵士の例。

選択肢の解説Choice Analysis

「Soldiers leave battlefields with shattered limbs while feeling little pain.」

正解

第2段は "Soldiers have walked off battlefields with shattered limbs feeling little" を挙げ、重い損傷でも痛みが小さい例として用いる。これは痛みが組織損傷を単純に反映しないことを示す本文の証拠。麻酔・子供・選手の例は本文に存在しない。

  • 「Surgeons routinely operate on patients who report no pain under anaesthesia.」

    = 麻酔下で痛みを訴えない患者を外科医が手術する例 ━ 本文に麻酔や手術の例は登場しない。。

  • 「Children feel less pain than adults because their nerves are immature.」

    = 子供は神経が未熟なため大人より痛みが少ないとする例 ━ 本文に子供や神経の成熟に関する記述はない。。

  • 「Athletes train themselves to ignore minor injuries through sheer willpower.」

    = 選手が意志力で軽傷を無視する例 ━ 本文の例は兵士・紙で切る人・切断者であり選手ではない。。

▦Collocation
パターン意味例
walk off the battlefield戦場から歩いて離れるSoldiers walked off the battlefield despite their wounds.
shattered limbs砕けた四肢They felt little despite shattered limbs.
mirror tissue damage組織損傷を映すPain does not simply mirror tissue damage.
writhe at〜に苦しみもだえるOthers writhe at a mere paper cut.
report agony激痛を訴えるAmputees report agony in absent limbs.
❝例文

  • The soldier barely noticed his injury until the battle ended.

    その兵士は戦闘が終わるまで負傷にほとんど気づかなかった。

  • A tiny paper cut can hurt more than a deep gash in some moments.

    ある瞬間には小さな紙の切り傷が深い裂傷より痛むことがある。

  • The amputee felt pain in a limb that was no longer there.

    切断者はもはや存在しない四肢に痛みを感じた。

  • Such cases undermine the idea that pain mirrors damage.

    こうした症例は痛みが損傷を映すという考えを覆す。

💡Tip · 覚えるコツ

具体例設問は本文に実在する例だけを選ぶ。もっともらしく聞こえても本文に無い例(麻酔・子供等)は罠。

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