Showing posts with label Brains. Show all posts
Showing posts with label Brains. Show all posts

Tuesday, January 28, 2025

rearranged their brains...............

 

I've come to know a lot of extremely successful people in my life, and while their temperaments run the gamut—lovable, aloof, enigmatic, even eccentric—they all have one thing in common.  They think differently than most people.  All of them, to a person, have rearranged their brains to prevail at achieving big goals in turbulent environments where conventional thinking often fails.

-Brad Jacobs, How to Make a Few Billion Dollars


Wednesday, March 6, 2024

hijacks...............................

      Our brains are special, fascinating miracles of the natural world, but they are also organs of the body.  They are flesh and water and electricity, and the fact that they are the seat of our thoughts does not negate their physicality or susceptibility to sickness.  Depression is, without any doubt, an illness and should be thought of as such.

     If a virus hijacks the machinery of your cells to manufacture more of itself, you wouldn't talk ownership of the decision to produce viruses, would you?  If you have a reaction to poison ivy, you wouldn't measure your self-worth by the itching of your skin, would you?  Can you imagine considering chickenpox to be an indictment of your life or evidence that you are lesser than other people?

     No.

     So how is it that our self-worth and the value of our personhood becomes tied to the painful negative thoughts that depression sufferers neither willfully create nor invite into our lives?  Depression is not a mirror held up to our identities, nor a yardstick with which to evaluate the quality of our essential selves.

     It's the flu.  It's a rash.

     It's the emotional equivalent of a persistent headache.

-Jarod K. Anderson

Monday, November 27, 2023

Uh-oh......................

 As blogger Tim Urban describes it, your brain gets hijacked by an instant gratification monkey, who picks what's easy and fun over the hard work that needs to be done. . . . 

     Many people associate procrastination with laziness.  But psychologists find that procrastination is not a time management problem—it's an emotional management problem.  When you procrastinate, you're not avoiding effort.  You're avoiding the unpleasant feelings that the activity stirs up.  Sooner or later, though, you realize that you're also avoiding getting where you want to go.

-Adam Grant, Hidden Potential: The Science of Achieving Greater Things

Sunday, August 13, 2023

I tried that strategy......................

..........................but got different results:

Late in life, Churchill would claim that "I gained a lot by not overworking my brain when I was young."  Typically, he tried to make a plus out of a minus, arguing in 1921 that "it is a mistake to read too many good books when quite young. . . . Young people should be careful in reading, as old people in eating their food.  They should not eat too much.  They should chew it well." 

-Thomas E. Ricks:  Churchill & Orwell: The Fight for Freedom

Monday, May 29, 2023

About your prefrontal cortex...........

 For most people, decline is just not an unwelcome surprise, it is also a huge mystery.  We learn early on that practice makes perfect; there is plenty of research telling us that mastery comes from ten thousand hours of work, or some really high number like that.  In other words, life has a formula: the more you do something, the better at it you become.

     But then you don't.  Progress isn't a straight line upward, . . . So what explains the downward portion? . . . 

     A better explanation involved structural changes in the brain—specifically, the changing performance of the prefrontal cortex (the part of the brain behind your forehead).  This is the last part of the brain to develop in childhood and the first to exhibit decline in adulthood.  It is primarily responsible for working memory, executive function, and inhibitory mechanisms—that is, the ability to block out information extraneous to the task at hand, so we can focus and imp[orve our core skill.  A big, strong prefrontal cortex makes it possible for you to get better and better at your specialty, whether it is making a legal case, doing surgery, or driving a bus.

      In middle age, the prefrontal cortex degrades in effectiveness . . .

-Arthur C. Brooks, From Strength to Strength: Finding Success, Happiness, and Deep Purpose in the Second Half of Life

Saturday, May 20, 2023

the end of the "in the background" posts?.....

      In middle age, the prefrontal cortex degrades in effectiveness, and this has several implications.  The first is that rapid analysis and creative innovation will suffer—just what we would expect when looking at the evidence on decline.  The second is that some specific, once-easy skills become devilishly hard, like multi-tasking.  Older people are much more easily distracted than younger people.  If you have—or had—teenage kids, you might have found yourself telling them they can't study effectively while listening to music and texting their friends.  Actually, it is you who can't do that.  If fact, older adults can enhance their cognitive effectiveness precisely by taking their own advice: turn off the phone and music and go someplace completely quiet to think and work.

-Arthur C. Brooks, From Strength to Strength

Thursday, March 2, 2023

On the plus side.....................

 Older brains aren’t as good at remembering details but they’re very good at recalling the gist of things. So as you get up there in years, you can actually be better at “seeing the forest for the trees.” Just like when it’s difficult to find something on your computer because there are too many files, having too many details can make getting to what’s relevant harder. Older brains can also be better at seeing commonalities between situations and discerning what’s key.

-Eric Barker, from this post

Saturday, September 24, 2022

Checking in......................................

........................................with Morgan Housel:

The line between "inspiringly bold" and "foolishly reckless" can be a millimeter thick and only visible with hindsight.

We have brains that prefer easy answers without much appetite for nuance.

. . . financial success is not a hard science.  It's a soft skill where how you behave is more important than what you know.

There is no reason to risk what you have and need for what you don't have and don't need.

A plan is only useful if it can survive reality.  And a future filled with unknowns is everyone's reality.

Napoleon's definition of a military genius was, "The man who can do the average thing when all those around him are going crazy."

-all snippets from his book, The Psychology of Money

Thursday, September 8, 2022

Midway 2 4437.............................

 When was the last time you had to remember someone's phone number?  I'm dating myself here, but I'm part of a generation that when you wanted to call your friend down the block, you needed to know their number.  Can you still remember some of your best friends' numbers from childhood?  What about the number of the person you talk or text with everyday?  You no longer have to, because your mobile remembers it for you.  This is not to say anyone wants to or should memorize 200 phone numbers, but we've all but lost the ability to remember a new one, or a conversation we just had, or the name of a new potential client, or something important we need to do.

     Neuroscientist Manfred Spitzer uses the term digital dementia to describe how overuse of digital technology results in the breakdown of cognitive abilities.

-Jim Kwik, Limitless: Upgrade Your Brain, Learn Anything Faster, and Unlock Your Exceptional Life

Tuesday, August 16, 2022

endless wonderment...............

 For the real amazement, if you wish to be amazed, is this process. You start out as a single cell derived from the coupling of a sperm and an egg; this divides in two, then four, then eight, and so on, and at a certain stage there emerges a single cell which has as all its progeny the human brain. The mere existence of such a cell should be one of the great astonishments of the earth. People ought to be walking around all day, all through their waking hours calling to each other in endless wonderment, talking of nothing except that cell.

-Lewis Thomas, Medusa and The Snail


Tuesday, November 24, 2020

Tiptoeing.....................................

 We,  human beings, are a species that's not only capable of acting on hidden motives—we're designed to do it.  Our brains are built to act in out self-interest while at the same time trying hard not to appear selfish in front of other people.  And in order to throw them off the trail, our brains often keep "us," our conscious minds, in the dark.  The less we know of our own ugly motives, the easier it is to hide them from others.

     Self-deception is therefore strategic; a ploy our brains use to look good while behaving badly.  Understandably, few people are eager to confess to this kind of duplicity.  But as long as we continue to tiptoe around it, we'll be unable to think clearly about human behavior.  We'll be forced to distort or deny any explanation that harks back to our hidden motives.  Key facts will remain taboo, and we'll forever be mystified by our own thoughts and actions.  It's only by confronting the elephant, then, that we can begin to see what's really going on.

-Kevin Simler and Robin Hanson,  The Elephant In The Brain

The Elephant.......................

 So what, exactly, is the elephant in the brain, this thing we're reluctant to talk and think about?  In a word, it's selfishness—the selfish part of our psyches.

     But it's actually broader than that.  Selfishness is just the heart, if you will, and an elephant has many other parts, all interconnected.  So throughout the book, we'll be using "the elephant" to refer not just to human selfishness, but to a whole cluster of related concepts:  the fact that we're competitive social animals fighting for power, status and sex; the fact that we're somethings willing to lie and cheat to get ahead; the fact that we hide some of our motives—and that we do so in order to mislead others.  We'll also occasionally use "the elephant" to refer to our hidden motives themselves.  To acknowledge any of these concepts is to hint at the rest of them.  They're all part of the same package, subject to the same taboo.

-Kevin Simler and Robin Hanson,  The Elephant In The Brain

Friday, May 10, 2019

From her lips to God's ears......................


      Your brain's health may be the most powerful indicator of how long you will live.  It is crucial to whether that life will be rich and satisfying from youth into old age, or something substantially less rewarding, and for less time.
      A car driven wisely, fueled with high-quality gasoline, given regular oil changes, and repaired with new parts as old ones wear out is likely to last longer than one that's abused or neglected.  Likewise, the easiest way to have a healthy brain in middle age and beyond is to start with one as a youth and to follow good physical and mental habits.  Exercise it.  Feed it.  Challenge it.  Then enjoy the rewards.
      But what of the person who comes late to the repairs, like the owner of a car that rusts for years on blocks or runs too long on dirty oil?   The car owner can always swap out the engine.  You, on the other hand, have only one brain, basically composed of the same neurons you were born with, plus a few added to some narrowly specific areas.  Once they've begun to deteriorate, can they be saved—or even made stronger?
      Brain researcher Marian Diamond is certain they can.

-Michael S. Sweeney,  Your Best Brain Ever:  A Complete Guide & Workout

Saturday, March 9, 2019

Life tips..........................



47.    Halve the TV viewing, double your reading. Triple your brain power.

-One hundred more tips may be found here

Monday, February 11, 2019

Punch line................................


     Here's the punch line:  You can break a habit, but you're unlikely to forget it.  Once the mental grooves of habit have been carved into your brain, they are nearly impossible to remove entirely—even if they go unused for quite a while.  And that means that simply resisting temptation is an ineffective strategy.  It is hard to maintain a Zen attitude in a life filled with interruptions.  It takes too much energy.  In the short-run, you can choose to overpower temptation.  In the long-run, we become a product of the environment that we live in.  To put it bluntly, I have never seen someone consistently stick to positive habits in a negative environment.

-James Clear,  Atomic Habits

Friday, June 1, 2018

Cleaning out the attic...................


“You see,"  he explained, "I consider that a man's brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it. Now the skilled workman is very careful indeed as to what he takes into his brain-attic. He will have nothing but the tools which may help him in doing his work, but of these he has a large assortment, and all in the most perfect order. It is a mistake to think that that little room has elastic walls and can distend to any extent. Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.” 

-Arthur Conan Doyle, channeling Sherlock Holmes in A Study in Scarlet

I find the answer oddly comforting..............


     That evolution should select for larger brains may seem to us like, well, a no-brainer. ...
     The fact is that a jumbo brain is a jumbo drain on the body.  It's not easy to carry around, especially when encased inside a massive skull.  It's even harder to fuel.  In Homo Sapiens, the brain accounts for about 2-3 per cent of total body weight, but it consumer 25 per cent of the body's energy when the body is at rest.  By comparison, the brains of other apes require only 8 per cent of rest-time energy.  Archaic humans paid for their large brains in two ways.  Firstly, they spent more time in search of food.  Secondly, their muscles atrophied.  Like a government diverting money from defence to education, humans diverted energy from biceps to neurons.  It's hardly a foregone conclusion that this is a good strategy for survival on the savannah.  A chimpanzee can't win an argument with a Homo Sapiens, but the ape can rip the man apart like a rag doll.
     Today our big brains pay off nicely, because we can produce cars and guns that enable us to move much faster than chimps, and shoot them from a distance instead of wrestling.  But cars and guns are a recent phenomenon.  For more than 2 million years, human neural networks kept growing and growing, but apart from some flint knives and pointed sticks, humans had precious little to show for it.  What then drove forward the evolution of the massive human brain during those 2  million years?  Frankly, we don't know.

-Yuval Noah Harari,   Sapiens:  A Brief History of Humankind

Pooh.............................




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