EigoPro 1級 読解 — The Tyranny of Expectation: Rethinking the Placebo

Few phenomena trouble the tidy dichotomy between authentic and imaginary medicine as profoundly as the placebo effect. Conventionally dismissed as the mind playing tricks, it has lately been rehabilitated as a genuine neurobiological event. When a patient swallows an inert pill believing it to be an analgesic, measurable cascades ensue: the brain releases endogenous opioids, dopamine surges in reward circuits, and the perception of pain genuinely diminishes. The relief is not feigned; it is manufactured by the body itself, summoned by little more than anticipation. Imaging studies have since traced this response to the same neural pathways that authentic drugs recruit, leaving the inconvenient impression that the line between pharmacology and persuasion is thinner than physicians care to admit. What unsettles the orthodox view is the realisation that ritual, not chemistry alone, can be therapeutic. The colour of a tablet, the gravity of a clinician's manner, the very act of being attended to — all modulate the response. A saline injection often outperforms an identical pill, presumably because the procedure carries greater theatrical weight, and a costlier remedy frequently relieves more than a cheap one of identical composition. Such findings imply that the ceremony surrounding treatment is not incidental packaging but an active ingredient, one that conventional trials labour to subtract rather than to harness, and that the consulting room itself may be quietly therapeutic. Herein lies the conceptual difficulty. If expectation can rewire physiology, then the boundary we police between "real" and "imagined" cures begins to dissolve. A remedy that works only because the patient expects it to work is, by any honest measure, working. To label such an outcome illusory is to privilege mechanism over result, mistaking our ignorance of the pathway for the absence of one. None of this licenses credulity. The placebo cannot shrink a tumour or mend a fracture, and its champions risk furnishing quackery with a veneer of respectability. Yet the lesson endures: healing is irreducibly relational, contingent on meaning as much as molecules. Medicine that ignores this dimension forfeits a potent, if inconvenient, therapeutic lever — and clings to a purity that the evidence no longer permits.

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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 central argument of the passage?

  • Because placebos can heal almost any condition, conventional pharmacology is largely redundant.
  • The placebo effect is an illusion that careful clinical trials are designed to eliminate entirely.
  • Expectation and ritual can produce genuine physiological effects, which undermines a clean distinction between real and imagined treatment.
  • Ritual surrounding treatment is merely decorative packaging with no measurable bearing on outcomes.
Phrase

the boundary we police between "real" and "imagined" cures begins to dissolve

1級読解主旨把握論旨
⚡ひとことで

筆者は期待や儀式が本物の生理的変化を生み、「本物／想像上」の境界を曖昧にすると論じる。

選択肢の解説Choice Analysis

「Expectation and ritual can produce genuine physiological effects, which undermines a clean distinction between real and imagined treatment.」

正解

本文は冒頭で placebo を「本物の神経生物学的事象 (a genuine neurobiological event)」と再評価し、期待が生理を書き換える (expectation can rewire physiology) ことで「real／imagined」の境界が溶け始めると述べる。儀式と結果を重視する議論全体の主旨はこれに一致する。第3段の「the boundary we police ... begins to dissolve」が核心。

  • 「The placebo effect is an illusion that careful clinical trials are designed to eliminate entirely.」

    = placebo は幻想で、臨床試験はそれを完全に排除するためにある ━ 本文は placebo を幻想として退ける旧来の見方を「rehabilitated (再評価された)」と明確に否定しており、主旨と正反対。。

  • 「Ritual surrounding a treatment is merely decorative packaging with no measurable bearing at all on clinical outcomes.」

    = 治療を取り巻く儀式は単なる飾りで結果に影響しない ━ 第2段は儀式を「not incidental packaging but an active ingredient (有効成分)」と述べ、この主張を直接否定している。。

  • 「Because placebos can heal almost any condition, conventional pharmacology is largely redundant.」

    = placebo はほぼ何でも治すので通常の薬学は不要 ━ 第4段で placebo は「cannot shrink a tumour or mend a fracture」と限界を明言しており、万能とは正反対。。

▦Collocation
パターン意味例
trouble the dichotomy二分法を揺るがすNew data trouble the dichotomy between nature and nurture.
be rehabilitated as〜として再評価されるThe theory was rehabilitated as a serious scientific hypothesis.
measurable cascades ensue測定可能な連鎖反応が続くOnce the signal fires, measurable cascades ensue in the cortex.
modulate the response反応を調整するStress hormones modulate the immune response.
forfeit a leverてこ(手段)を放棄するA rigid policy forfeits a useful lever for negotiation.
❝例文

  • The placebo effect blurs the line between authentic and imagined medicine.

    placebo 効果は本物の医療と想像上の医療の境界を曖昧にする。

  • Belief alone summoned a measurable surge of dopamine.

    信念だけが測定可能なドーパミンの急増を呼び起こした。

  • The author rejects the idea that such relief is feigned.

    筆者はそうした緩和が見せかけだという考えを退ける。

💡Tip · 覚えるコツ

主旨問題では「全体を貫く一文」を探す。本文は『期待→本物の生理変化→境界の崩壊』という論理の連鎖で、これを要約した選択肢が正解。極端語 (entirely, redundant, no measurable) を含む選択肢はたいてい不正解。

問 2

According to the passage, what happens in the body when a patient takes an inert pill believing it relieves pain?

  • The patient only reports less pain while the underlying physiology is wholly unchanged.
  • Dopamine is suppressed, leaving the perception of pain temporarily heightened.
  • The pill chemically blocks pain receptors before any belief can take effect.
  • The brain releases endogenous opioids and dopamine surges in reward circuits, so pain perception genuinely declines.
Phrase

the brain releases endogenous opioids, dopamine surges in reward circuits

1級読解詳細把握
⚡ひとことで

不活性な錠剤でも、脳は内因性オピオイドを放出しドーパミンが急増、痛みの知覚が実際に減る。

選択肢の解説Choice Analysis

「The brain releases endogenous opioids and dopamine surges in reward circuits, so pain perception genuinely declines.」

正解

第1段に「the brain releases endogenous opioids, dopamine surges in reward circuits, and the perception of pain genuinely diminishes」とある。緩和は見せかけではなく身体自身が生み出す (manufactured by the body itself)。よって正解は脳内のオピオイド放出とドーパミン急増、痛覚の実際の低下を述べたもの。

  • 「The pill chemically blocks pain receptors before any belief can take effect.」

    = 錠剤が化学的に痛みの受容体を遮断する ━ 錠剤は「inert (不活性)」で化学作用を持たず、効果は期待によって呼び起こされると本文は述べる。。

  • 「The patient only reports feeling less pain while the underlying physiology remains wholly unchanged.」

    = 痛みが減ったと報告するだけで生理は全く変わらない ━ 本文は緩和が「not feigned (見せかけではない)」「manufactured by the body itself」と明記し、生理変化を伴うと述べる。。

  • 「Dopamine is suppressed, leaving the perception of pain temporarily heightened.」

    = ドーパミンが抑制され痛みが一時的に強まる ━ 本文は「dopamine surges (急増する)」と逆を述べており、痛みは diminishes (減る)。。

▦Collocation
パターン意味例
release endogenous opioids内因性オピオイドを放出するVigorous exercise can release endogenous opioids.
dopamine surgesドーパミンが急増するDopamine surges when an unexpected reward appears.
reward circuits報酬回路Addiction hijacks the brain's reward circuits.
perception genuinely diminishes知覚が実際に弱まるWith training, the perception of effort genuinely diminishes.
manufactured by the body身体自身が生み出したThe relief was manufactured by the body, not the drug.
❝例文

  • An inert pill triggered a real release of natural painkillers.

    不活性な錠剤が天然の鎮痛物質の実際の放出を引き起こした。

  • Anticipation alone diminished the patient's reported pain.

    期待だけが患者の訴える痛みを和らげた。

  • The body summoned relief from nothing but belief.

    身体は信念だけから緩和を呼び起こした。

💡Tip · 覚えるコツ

詳細問題は本文の動詞に注目。releases / surges / diminishes という3つの動きを正確になぞった選択肢を選ぶ。方向を逆にした (suppressed, heightened) 選択肢は典型的なひっかけ。

問 3

What does the passage say about a saline injection compared with an identical pill?

  • The two are interchangeable, since the active ingredient is identical.
  • The injection is less effective because patients distrust needles.
  • The injection often produces a stronger effect, probably because the procedure carries greater theatrical weight.
  • The injection works only when it contains a genuine drug.
Phrase

A saline injection often outperforms an identical pill

1級読解詳細把握
⚡ひとことで

生理食塩水の注射は同一の錠剤を上回ることが多い。手技が持つ演劇的重みが理由とされる。

選択肢の解説Choice Analysis

「The injection often produces a stronger effect, probably because the procedure carries greater theatrical weight.」

正解

第2段に「A saline injection often outperforms an identical pill, presumably because the procedure carries greater theatrical weight」とある。これは儀式そのものが有効成分 (an active ingredient) であるという論点の証拠。よって注射がより強い効果を生むという選択肢が正解。

  • 「The injection is less effective because patients distrust needles.」

    = 針への不信から注射の方が効果が低い ━ 本文は注射が錠剤を「outperforms (上回る)」と述べており、効果は高い。。

  • 「The two are entirely interchangeable, since the active ingredient involved is identical in both.」

    = 有効成分が同じだから両者は交換可能 ━ 本文は両者に差があると述べ、その差は儀式(theatrical weight)に由来すると説明している。。

  • 「The injection works only when it contains a genuine drug.」

    = 注射は本物の薬を含むときだけ効く ━ ここでの注射は「saline (生理食塩水)」で実薬を含まないが、それでも効果を上げると述べられている。。

▦Collocation
パターン意味例
outperform an alternative代替手段を上回るThe new model outperforms its predecessor on every test.
carry theatrical weight演劇的な重みを持つA formal ceremony carries theatrical weight that a memo lacks.
an active ingredient有効成分Hope, it seems, can be an active ingredient in recovery.
incidental packaging付随的な飾り・包装He treated the data as incidental packaging, not substance.
labour to subtract取り除こうと苦心するEditors labour to subtract every redundant phrase.
❝例文

  • A more elaborate procedure can amplify the placebo response.

    より手の込んだ手技が placebo 反応を増幅し得る。

  • The ritual, not the substance, did much of the work.

    物質ではなく儀式が仕事の多くをこなした。

  • Even saline can outperform a pill in some trials.

    一部の試験では生理食塩水でも錠剤を上回ることがある。

💡Tip · 覚えるコツ

比較を問う問題は方向(より強い/弱い)と理由をセットで確認。本文の presumably / because の後ろに理由がある。実薬の有無 (saline=実薬なし) を取り違える選択肢に注意。

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