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Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

ncbi.nlm.nih.gov

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Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#91

Post by lj3 »

ArkyBeagle wrote: post #80
lj3 wrote: post #61

Earlier quoted context omitted.

> there are sports which will cripple your health in long run, almost guaranteed. many contact sports, it football comes to mind. Did you play football? The danger of permanent crippling injury has been blown way out of proportion by helicopter parents and the news. Of all the kids I played with and all the kids I coached (volunteer), only one of them ever wound up partially crippled. That kid in particular would rou…

Well, football ain't bull ridin' for sure. There's just something gladiator-exploitative about the whole mess. Another anecdote: guy I know has a kid that's like a high school... sophomore and in order for this kid to continue to add value as a basketball player, he apparently can't afford to play HS varsity ball. It's a distraction. His other (older) son is approaching 7 feet tall and is totally over organized sport…

> There's just something gladiator-exploitative about the whole mess.

In what way?

> It's a distraction.

From what? That's the weirdest sort of reasoning I've ever heard.

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#92

Post by ObeyTheGuts »

orbitur wrote: post #59
ObeyTheGuts wrote: post #51

Earlier quoted context omitted.

I never get whats the difference talking to beautiful women compared to anyone else? Im reserved and dont talk people much but there is no difference at all who those people are! Overall talking women is even bit easier as they are less dangerous on average.

For me, it's probably a holdover from my teenage years as a socially awkward and horny boy. I'm in my 30s now, but there's weird mental habits and impulses that are still sticking around. I'm happily married, I don't cheat, I don't want to cheat, I'm really not interested in the "hot woman," but if I end up talking to her under any circumstances, there's a loud chorus of voices in my head screaming "dontfuckitupdontf…

Wow, interesting stuff, i cant imagine any situation like that, even if i was operating my kid in life or death surgery i would not have dontfuckitup in my head, am i psychopath?

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#93

Post by cel1ne »

gwern wrote: post #64
cel1ne wrote: post #35

Earlier quoted context omitted.

"The brain makes up 2% of a person's weight. Despite this, even at rest, the brain consumes 20% of the body's energy. The brain consumes energy at 10 times the rate of the rest of the body per gram of tissue. The average power consumption of a typical adult is 100 Watts and the brain consumes 20% of this making the power of the brain 20 W." http://hypertextbook.com/facts/2001/JacquelineLing.shtml

The resting metabolism is very high, because the brain is expensive to build and run. But it's not much more expensive to run on one task rather than another. This is one of the major flaws in the blood glucose theory of willpower as discussed by Kurzban: some additional sugar can't be 'gasoline' for the brain because the brain doesn't use up that much more energy working on something than not working on something. (…

You assume merely logical work in the pre-frontal cortex. As soon as emotions come to play the body get's involved because heart-rate, body-temperature etc. is influenced.

And I don't mean emotions like anger, but less visible ones like disgust, which seem to be triggered during procrastinating.

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#94

Post by hexane360 »

igravious wrote: post #73
Noseshine wrote: post #49

Earlier quoted context omitted.

Having taken neuroscience courses for interest in the subject, the holes in our knowledge far exceed the knowledge - even if the introductory book is over a thousand pages (but that's how it is in most fields these days, and yet you only learn basics). For example, only very recently we found that the brain literally cleans itself (by flushing) during sleep ( http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3880190/ ). Yo…

Fascinating stuff. What's a relatively recent write-up of this stuff for a non-specialist that doesn't skimp on the details? I'm not asking for Cognitive Neuroscience for Dummies but I'm not asking for "think of the brain like a CPU" either. If there isn't a decent write-up, could you write it? I'd buy a copy ;-)

I'd really be interested in this too.

I've seen the "brain flushing" research, but this was the most in depth I've heard it explained.

Of course, this goes back to the "1000 page introduction" he mentioned.

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#95

Post by Terr_ »

gwern wrote: post #10

'Protection' might be the goal of physical fatigue, but it doesn't work for intellectual effort - what are you being 'protected from breaking' by not being able to write another line of code? Carpal tunnel? In that case, it looks more like it's about conserving energy or rotating to another task after having spent so much time on one task: "A Meta-Analysis of Blood Glucose Effects on Human Decision Making" http://www…

It might be protecting you from becoming so brain-fuzzed you can't respond appropriately to "legitimate" threats. Conserving spare capacity for when the predator shows up.

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#96

Post by mathattack »

uola wrote: post #54
mathattack wrote: post #28

Earlier quoted context omitted.

Interesting. I've trained with many Seals - they have ungodly cardio. I've never seen any that big, as the extra muscle kills their cardio.

Something seems fishy about that story. Not only are special forces people usually smaller, but getting hurt is a big no no. It will stop your training and severely jeopardize any mission you're on. Most special forces teaches the opposite of "if it's not hard we don't do it" i.e. to use your tactical advantage. That said, getting in to US special forces probably isn't that selective these days with having had to fil…

Digging in with Google, the writer is much less than a billionaire (though perhaps with more arrogance than one) and the seal was much less than 260 pounds. I have my suspicions about breaking every small bone in his feet and kidney failure too.

And even if that story is true - how much glory is running until one gets kidney failure?

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#97

Post by bshanks »

gwern wrote: post #10

'Protection' might be the goal of physical fatigue, but it doesn't work for intellectual effort - what are you being 'protected from breaking' by not being able to write another line of code? Carpal tunnel? In that case, it looks more like it's about conserving energy or rotating to another task after having spent so much time on one task: "A Meta-Analysis of Blood Glucose Effects on Human Decision Making" http://www…

Similar to the opportunity cost model, Minsky proposed that boredom with tedious tasks is a guard against getting stuck in an infinite loop: http://aurellem.org/society-of-mind/som-6.13.html

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#98

Post by sn9 »

lj3 wrote: post #90
sn9 wrote: post #89

Earlier quoted context omitted.

You're using anecdotes to counter statistics?

What statistics? Nobody's provided any at this point in the conversation. If you have some, feel free to share. Otherwise, I'm going to downvote your comment as unproductive.

The statistics underpinning the fears of parents as to crippling injuries from head injuries in football are well documented, easily Google-able, and far more relevant than your anecdotal experience.

Re: Fatigue Is a Brain-Derived Emotion that Regulates to Ensure Protection (2012)

#99

Post by lj3 »

sn9 wrote: post #98
lj3 wrote: post #90

Earlier quoted context omitted.

What statistics? Nobody's provided any at this point in the conversation. If you have some, feel free to share. Otherwise, I'm going to downvote your comment as unproductive.

The statistics underpinning the fears of parents as to crippling injuries from head injuries in football are well documented, easily Google-able, and far more relevant than your anecdotal experience.

Due respect, put up or shut up.
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