Question the Herd | Brain Games

National Geographic
24 Feb 201503:11

Summary

TLDRThis video features a social experiment on the USS Intrepid where participants must identify which of three lines matches a reference line. However, most of the group is secretly instructed to choose the wrong answer, leading the final participant to face peer pressure. The experiment demonstrates how people often conform to group consensus, even when they believe it's wrong. It explores the psychological and evolutionary reasons behind this behavior, highlighting how the brain's 'error signal' compels individuals to align with the majority to avoid standing out or being wrong.

Takeaways

  • 🔎 The experiment is set on the USS Intrepid, where participants must match the length of a card to one of three lines.
  • 🤔 The participants face peer pressure, as they are influenced by others' choices in the group.
  • 🧠 The majority of people in the group purposely choose the wrong answer (A) as part of the experiment.
  • 🎯 The correct answer is C, though most people chose A due to group pressure.
  • 😬 Some participants admit their gut told them C, but they switched to A to conform with the group.
  • 🚶‍♂️ A few participants resisted group pressure and stuck with their original answer, choosing C.
  • 🙈 The experiment highlights how peer pressure can lead people to ignore their own judgment.
  • 🧪 The script questions how this behavior would translate in a more serious situation, like a murder case.
  • 🧠 The 'oops area' of the brain generates an error signal when someone holds a different opinion from the group, causing discomfort.
  • 🐑 The evolutionary advantage of conforming to the group is linked to survival, which can explain why people tend to follow the crowd.

Q & A

  • What is the setting of the experiment described in the script?

    -The experiment takes place on the deck of the USS Intrepid.

  • What is the main task participants are asked to complete in the experiment?

    -Participants are asked to decide which one of three straight lines is the same length as a line shown on a first card.

  • What did the majority of participants choose as their answer, and why is this significant?

    -The majority of participants chose 'A,' and this is significant because they were influenced by the group consensus, which was intentionally incorrect.

  • What is the actual correct answer to the line length comparison task?

    -The correct answer is 'C.'

  • How were the first nine participants in the experiment instructed to behave, and why?

    -The first nine participants were instructed to pick the same wrong answer, 'A,' to create a scenario where the last participant would feel peer pressure to conform.

  • What psychological phenomenon does this experiment aim to demonstrate?

    -The experiment aims to demonstrate the influence of peer pressure and the tendency to conform to group consensus, even when it is clearly incorrect.

  • What brain region is activated when someone holds a different opinion than the group, according to the script?

    -The interior cingulate cortex, also known as the 'oops area,' is activated.

  • What evolutionary advantage is associated with following the group, as mentioned in the script?

    -Following the group is associated with survival, as staying with the herd can keep an individual safe.

  • How did some participants react to the group consensus despite their own judgment?

    -Some participants questioned their own judgment and chose to go with the group's answer to avoid standing out or feeling like the 'dumb kid.'

  • What is the main lesson or takeaway from this experiment?

    -The main takeaway is that people often ignore their own correct judgments to fit in with a group, highlighting the strong influence of social conformity.

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関連タグ
peer pressuredecision-makingsocial influencepsychology experimentgroup behaviortrust instinctsconformitycrowd mentalitycritical thinkinggroup consensus
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