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Pig brains partially revived four hours after death

bbc.co.uk

51–60 of 207 posts

Re: Pig brains partially revived four hours after death

#51
post #4

Earlier quoted context omitted.

Pain exists in the brain, not the body.

No matter how hard I think, I cannot seem to manifest any true pain in my mind. I doubt a pig could either.

Pain is registered by nerves connected to the brain, and given that phantom pain happens even when those nerves are truly gone, its definitely possible the pig brain could interpret it as pain. This is pretty new territory to make strong statements about

Re: Pig brains partially revived four hours after death

#52
post #23

Imagine donating your body to science and then waking up in a lab as a brain in a vat. "A Living Soul" by P. C. Jersild is amazing sci-fi book exploring this. https://www.amazon.com/Living-Norvik-Press-English-Swedish/d... https://en.wikipedia.org/wiki/P._C._Jersild

Soviet science fiction story, with the animated head lede.

https://en.wikipedia.org/wiki/Professor_Dowell's_Head

Re: Pig brains partially revived four hours after death

#53

>a specially designed liquid round the brain, which contained a synthetic blood to carry oxygen and drugs to slow or reverse the death of brain cells. I had no idea humanity achieved synthetic blood. This is from the study: >a haemoglobin-based, acellular, non-coagulative, echogenic, and cytoprotective perfusate that promotes recovery from anoxia Am I the only one excited by what viable synthetic blood might mean for…

Don't get your hopes up. I worked in a neurology lab where they used something similar years ago. You could keep a pig / rat brain running for a few hours like this, but it would start to fall apart in other ways pretty fast.

Re: Pig brains partially revived four hours after death

#54

I don’t see why they bothered drugging the brains. Even if they became conscious, the pig’s bodies are dead and gone. There is nothing to feel, one is simply alone with their thoughts, perhaps even dreams.

Fear of being blind and alone, unable to even draw a breath to bleat out a cry for help perhaps? Plus, the pig WAS dead. Even if they are just alone with their thoughts, there probably was some trauma surrounding become an ex-pig.

Re: Pig brains partially revived four hours after death

#55

Throwing it out there—when I'm dead, you are totally allowed to resuscitate my brain. Better than being dead. Please make sure I am supplied with some good books to read, if at all possible.

Bad movie, not so great book, but aren't Stalker's from Mortal Engines basically the same thing. Dead and brought back to serve.

I will be curious if they can not only resuscitate but also influence what is left? plus would it matter if your a victim of a seizure? would there be anything left that we see as a human personality to bring back? I ask that from experience of losing a middle aged uncle to a seizure, it raises your body temperature sufficiently to kill/wipe the brain. You can coma them to stop the activity but bringing them back up from that is no guarantee anyone is home

Re: Pig brains partially revived four hours after death

#56
post #24
post #4

Earlier quoted context omitted.

Pain exists in the brain, not the body.

All response experience exists within the brain, yes, but it is only ever made possible through external stimulus. The brain itself doesn't feel anything, but generates those feelings as a response to events outside of itself. "If it seems strange that nerve signals coming from the back can represent vision, bear in mind that your own sense of vision is carried by nothing but millions of nerve signals that just happe…

Phantom limbs can cause/have pain, partly from the lack of expected predicted feedback. I cannot begin to imagine what sort of chaos, in the dynamical sense, a non-existent body would cause and how that would be represented in the parts of the brain that calculates how to interpret it.

Re: Pig brains partially revived four hours after death

#57
Anyone here considered cryo? the only thing putting me off is being trapped in an infinite torture with some bitter robot overlord. The good thing about death is just that. No one can suffer infinitely. We get to die. I read a short story once where this kind of happens. It's the end of time and 3 people are stuck in an evil machine who keeps them alive. Then one guy kills/free's 2 of the others. Can't remember what it was called. May have been an Asimov short. As far as I know cryo can be as little as £30 a month on a life insurance plan. Backing people up will become big business if they can show everyone there is nothing metaphysical about the mind.

Re: Pig brains partially revived four hours after death

#58

Earlier quoted context omitted.

> Throwing it out there—when I'm dead, you are totally allowed to resuscitate my brain. Better than being dead. Are you comfortable with the possibility that those who are reviving you might not be doing it for your benefit?

I think so. Still better than being dead. (If they're explicitly trying to cause me pain, that would be a no.)

https://www.youtube.com/watch?v=IFe9wiDfb0E

(This is a relevant YouTube video to the discussion, not spam.)

Re: Pig brains partially revived four hours after death

#59

Anyone here considered cryo? the only thing putting me off is being trapped in an infinite torture with some bitter robot overlord. The good thing about death is just that. No one can suffer infinitely. We get to die. I read a short story once where this kind of happens. It's the end of time and 3 people are stuck in an evil machine who keeps them alive. Then one guy kills/free's 2 of the others. Can't remember what…

I have no mouth and I must scream https://en.m.wikipedia.org/wiki/I_Have_No_Mouth,_and_I_Must_...

Is it this?

Re: Pig brains partially revived four hours after death

#60
post #24
post #4

Earlier quoted context omitted.

Pain exists in the brain, not the body.

All response experience exists within the brain, yes, but it is only ever made possible through external stimulus. The brain itself doesn't feel anything, but generates those feelings as a response to events outside of itself. "If it seems strange that nerve signals coming from the back can represent vision, bear in mind that your own sense of vision is carried by nothing but millions of nerve signals that just happe…

But parts of those nerves are there; you can't really shave them off, they end inside the brain.

Think of it as taking a microprocessor in a circuit and disconnecting every one of its pins except those providing power. How would that microprocessor behave? It's various I/O pins aren't gone, their state and response just became somewhat random.

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