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First recording of a dying human brain shows waves similar to memory flashbacks (2022)

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Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#141

Post by fancyswimtime »

DougN7 wrote: post #78
tirant wrote: post #15

I have lost consciousness several times in my life. Not a pleasurable experience specially as last time I did it because of such extreme pain that I thought I was passing away. However I have had always recollection of those seconds or minutes when I was unconscious: there was always an intense and quick succession of memories and images accompanied by sound. At some point the external sound from people trying to rea…

I once had my life threatened and experiences that too - the (past) life flashing before your eyes. My thought was the brain was desperately trying to find a way out of the situation by searching for anything similar it had experienced. Was really interesting to experience.

agree with this; fits with how the brain values recording of memories when adrenaline is present

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#142

Post by barrenko »

seemaze wrote: post #97
lordnacho wrote: post #50

Earlier quoted context omitted.

For contrast, when I was put under with propofol for surgery, there was nothing. I thought I would gently fall asleep, but it was actually extremely fast. It went from "tell me about your life" which the anesthetist uses to check your state to "oh so came here for uni..." to "huh the surgery is over" in a single cut. Nothing in between, nothing like that thing you feel when before you fall asleep at night or wake up…

My first time I remember the anesthesiologist asking me to count backwards from 100. I assumed the process would take 30 to 60 seconds. I don't think I even hit 97..

On (In?) my last surgery they did the "make sure to remember what you dream" spiel on me. I dreamt I was having a surgery. After the surgery no one came to ask me what I've dreamt, it left me feeling quite a bit disappointed.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#143

Post by barrenko »

cantor_S_drug wrote: post #45
tirant wrote: post #15

I have lost consciousness several times in my life. Not a pleasurable experience specially as last time I did it because of such extreme pain that I thought I was passing away. However I have had always recollection of those seconds or minutes when I was unconscious: there was always an intense and quick succession of memories and images accompanied by sound. At some point the external sound from people trying to rea…

https://www.newyorker.com/magazine/2011/04/25/the-possibilia... When David Eagleman was eight years old, he fell off a roof and kept on falling. Or so it seemed at the time. His family was living outside Albuquerque, in the foothills of the Sandia Mountains. There were only a few other houses around, scattered among the bunchgrass and the cholla cactus, and a new construction site was the Eagleman boys’ idea of a per…

"With effortless focus, Munenori Sensei smoothly pulls the arrow to bend his bow. Released like a ripe fruit, the arrow glides. It races toward your heart.

In the eternity of the arrow’s flight, you wonder: What is this present moment? Confronting its end, your mind becomes razor sharp, cleav- ing time into uncountable, quickly passing moments.

At one such perfect instant you see the arrow as it floats, suspended between the finest ticks of the most precise clock. In this instant of no time, the arrow has no motion, and nothing pushes or pulls it toward your heart. How, then, does it move?

While your beginner’s mind embraces the mystery, the arrow flies."

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#144

Post by S_Bear »

seemaze wrote: post #97
lordnacho wrote: post #50

Earlier quoted context omitted.

For contrast, when I was put under with propofol for surgery, there was nothing. I thought I would gently fall asleep, but it was actually extremely fast. It went from "tell me about your life" which the anesthetist uses to check your state to "oh so came here for uni..." to "huh the surgery is over" in a single cut. Nothing in between, nothing like that thing you feel when before you fall asleep at night or wake up…

My first time I remember the anesthesiologist asking me to count backwards from 100. I assumed the process would take 30 to 60 seconds. I don't think I even hit 97..

Yeah, mine was count down from ten. Made it to eight, then I was in a different room and an hour had passed. Closest thing to time travel.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#146

Post by QuadmasterXLII »

aantix wrote: post #145

Are there any software engineers here that believe in the afterlife?

You can find some on the right wing catholic rationalist community on substack, I say without a hint of irony. The topic of the day is whether cloud droplets preferentially scatter forward, as pertains to the miracle at fatima

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#147

Post by astura »

gausswho wrote: post #74
VagabundoP wrote: post #66

Earlier quoted context omitted.

Anesthetics are very weird though. There's still a lot we don't know about how they work. They seem to act like you experienced, complete shutdown, for most people, which seems different from the states that people go into when unconscious or are near death usually. And some people have a very different experience while under them - they are fully aware.

I had heard something unsettling about anesthesia that I could use verification or debunking. The gist was that modern implementations suppress memory formation rather than induce unconsciousness. That you remain in some sense aware of what's happening but don't remember the experience. This is safer than traditional methods, but could potentially subject the patient to complex mental or emotional trauma. Is that acc…

>The gist was that modern implementations suppress memory formation rather than induce unconsciousness. That you remain in some sense aware of what's happening but don't remember the experience.

That's called twilight anesthesia and it's used for some procedures, not others. Usually used for stuff like wisdom teeth extraction and colonoscopies. Anything "major" and you're getting general anesthesia. You can ask what type of anesthesia you will be receiving (twilight or general).

https://wikipedia.org/wiki/Twilight_anesthesia

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#148

Post by AnimalMuppet »

aantix wrote: post #145

Are there any software engineers here that believe in the afterlife?

Sure. It's not just atheists here. There's a fair number of Christians (Catholic, Protestant, some Orthodox). There's some Muslims and Jews. Hindus, if you count reincarnation as an afterlife. Probably some that I have missed.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#149

Post by scruple »

lordnacho wrote: post #50
tirant wrote: post #15

I have lost consciousness several times in my life. Not a pleasurable experience specially as last time I did it because of such extreme pain that I thought I was passing away. However I have had always recollection of those seconds or minutes when I was unconscious: there was always an intense and quick succession of memories and images accompanied by sound. At some point the external sound from people trying to rea…

For contrast, when I was put under with propofol for surgery, there was nothing. I thought I would gently fall asleep, but it was actually extremely fast. It went from "tell me about your life" which the anesthetist uses to check your state to "oh so came here for uni..." to "huh the surgery is over" in a single cut. Nothing in between, nothing like that thing you feel when before you fall asleep at night or wake up…

I've only been put under once and it was when I was very, very young (3 for hernia surgery, I'm in my mid-40s now) and I had a similar experience, except I came to ~half way through and picked up my head, wondering what the fuck was happening to me, before promptly being put under again. It's my earliest memory but it's also one of the only strong memories I have before 6-7 years old.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#150

Post by squidsoup »

In the 90s, psychiatrist Rick Strassman proposed in his book DMT: The Spirit Molecule that large quantities of DMT (an endogenous psychoactive substance), are released into the brain upon death. I don't know that we have any clear evidence of this, but its certainly an interesting perspective on what might account for near death, and death experiences.
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