🧠 10 Banned Psychology Experiments That Changed the World (2025 Edition)

😨 Why Were These Psychology Experiments Banned?

Because they worked.
But the cost was psychological damage, emotional trauma, and ethical disaster. These studies showed that “normal people” could act cruelly, lie easily, or submit to evil—and that scared governments, schools, and scientists.

Let’s look at the 10 most controversial and banned studies in psychology.

black-and-white image of a blindfolded subject hooked to wires, surrounded by clipboard-holding scientists

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🧪 10 Banned Psychology Experiments That Shook the World

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1. ⚡ The Milgram Experiment (1961, USA)

🧠 Purpose: Obedience to authority
📍 Method: Subjects were told to give painful shocks to another person
😱 Result: 65% delivered what they believed were lethal shocks
⚠️ Banned for causing extreme emotional stress and guilt

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2. 🧑‍⚖️ The Stanford Prison Experiment (1971, USA)

👨‍⚖️ By: Dr. Philip Zimbardo
🏫 Volunteers were assigned as “guards” or “prisoners”
📉 Within 6 days, guards became abusive and prisoners mentally broke
🚫 Shut down early and never repeated again

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3. 💉 The Monster Study (1939, USA)

👧 Orphans were verbally abused to “trigger” stuttering
🧠 Some developed lifelong speech disorders
📚 Not revealed until decades later—still considered unethical

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4. 🧬 The Little Albert Experiment (1920, USA)

👶 A baby was conditioned to fear white rats and furry objects
🔊 Loud banging paired with harmless stimuli
😢 No effort was made to decondition him
🚫 Now banned under modern child psychology ethics

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5. 🧪 David Reimer Case (1965–2004, USA/Canada)

🧬 After a botched circumcision, psychologists tried to raise David as a girl
📉 Part of gender identity studies led by Dr. John Money
💔 Resulted in trauma, identity confusion, and eventual suicide
🛑 Sparked strict reforms in gender studies and consent

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6. 🧊 Landis’ Facial Expressions Study (1924)

🖼️ Subjects were asked to display emotions—then told to behead a live rat
😨 Most obeyed—even if hesitant
📸 Purpose: Determine if emotions were universal
☠️ Banned for animal cruelty and psychological manipulation

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7. 🧪 The Bobo Doll Experiment (1961)

🎥 Children watched adults punch, kick, and hit an inflatable doll
👧 They imitated the violence without being told
🧠 Proved “observational learning,” but sparked moral panic
📺 Many blamed it for violence in media

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8. 🧠 Rosenhan Experiment (1973)

🏥 Researchers faked mental illness to get admitted to psychiatric hospitals
👨‍⚕️ All were diagnosed with schizophrenia—even though healthy
😰 Took days or weeks to be released
📋 Exposed flaws in psychiatric diagnosis systems
🚫 Hospitals pushed for the study to be silenced

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9. ⛓️ The Third Wave (1967)

🏫 A teacher simulated a fascist regime in class to show how Nazism rose
🙋 Students became obedient, militant, and even reported dissenters
💥 Ended after five days when teacher revealed the truth
📚 Inspired the book/movie The Wave
❗ School boards now restrict such simulations

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10. 💉 Aversion Therapy on LGBTQ+ Individuals (1950s–1970s)

⚡ Electroshock and hormone injections used to “correct” homosexuality
📉 Often without consent, sometimes under state order
🏳️‍🌈 Victims still suffer long-term trauma
🚫 Condemned by all modern psychological associations

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⚖️ Lessons from Psychology’s Dark Past

These experiments changed laws, ethics boards, and even entire fields of psychology. They taught us that:

• Humans are deeply influenced by authority and surroundings

• Ethics must come before scientific ambition

• Awareness is the first step to protection

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📚 Final Thoughts: The Mind Is a Dangerous Place

Psychology opened doors—but some of those doors led to nightmares. While these studies are no longer allowed, they live on in textbooks as a warning: power + science = responsibility.

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🔜 Coming Soon on Did You Know Facts:

• 🗿 Ancient Archaeological Discoveries Hidden from the Public

• 🕰️ Artifacts That Challenge Mainstream History

• ☠️ Cursed Objects Found in Real Homes

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