“Quiet” Chapter 7 by molly

Definitions

haochengzhang15208bisz — 2024-10-22 00:51:03 UTC

reward sensitivity person:

-highly motivated to seek awards

-Problem: too sensitive to reward but ignoring the risk

People do what they do due to the intervene of old and new brain

-old brain: pleasure center, greediness of people

-new brain (neocortex): responsible to make decisions, planning, language, more rational in a nutshell

Buzz: a rush of energized, enthusiathic feelings (extrovert easier to get an extra buzz

Image illustrating difference between introverts and extroverts on responding the reward sensitivity

haochengzhang15208bisz — 2024-10-23 00:12:58 UTC

fredyao0624 — 2024-10-23 00:16:51 UTC

Purpose

haochengzhang15208bisz — 2024-10-23 00:17:45 UTC

Explain how and why introverts and extroverts think and process dopamine differently

Introduce the concept of reward sensitivity

Extroverts: owning the tendency to seek award

“geared to respond”

Introverts:

“geared to inspect”

Explain how the new brain and the old brain function differently in extroverts and introverts ——->

Introduce the concept of buzz

Old brain v.s New brain

fredyao0624 — 2024-10-23 00:19:25 UTC

The intro example:

haochengzhang15208bisz — 2024-10-23 00:25:21 UTC

Alan-a 60 years old man spending hundreds thousand dollars on buying technological stocks, and loses nearly all.

Context: in 2008 finance crisis

Help introduce the concept of reward sensitivity, showing the harm of a “buzz”, that causes people to ignore the risk that were suppose to take care

Different Parts of the Brain

ronghuang11430bisz — 2024-10-23 00:36:02 UTC

The degree of reward-sensitivity is caused by a difference in brains🧠: decisions are based on whichever part of the brain that sends stronger signals

“old brain” = limbic system; focuses on emotions/instinct😭🤪🙄💅😂
“new brain” = neocortex, focuses on rationality/language/planning/thinking 💭📝🗣️📈

Extroverts = more responsive to old brain, more ambitious, more responsive to dopamine (proven by Cornell professor Richard Depue)

Buffett’s example:

haochengzhang15208bisz — 2024-10-23 00:51:42 UTC

-Known for thinking carefully while those around him loses heads

At the height of technological boom:

-didn’t make a soon invest

-having a careful think to take his decision

-having speech analyzing why the tech-fueled bull market wouldn’t last

His key to success was the maintains of calmness that enables him to detect the risks and the strength to insist his idea when everyone chooses to invest the tech market.