Author Topic: Head Transplants Move Closer to Reality  (Read 1398 times)

Offline _Xenu_

Head Transplants Move Closer to Reality
« on: July 01, 2013, 10:20:26 AM »
Ethical issues aside, this is a path to immortality for anyone who could afford it.

You are not allowed to view links. Register or Login
Click this link once a day to feed shelter animals. Its free.

You are not allowed to view links. Register or Login

Offline Solitary

Re: Head Transplants Move Closer to Reality
« Reply #1 on: July 01, 2013, 10:28:55 AM »
Why would anyone want immortality accept they don't want to non exist. To me hell is never being able to die no matter what for eternity. I'd rather not exist for eternity.   :shock:  One life time is enough for me.  :-k   :Hangman:  Solitary
There is nothing more frightful than ignorance in action.

Offline Plu

Re: Head Transplants Move Closer to Reality
« Reply #2 on: July 01, 2013, 10:29:05 AM »
Uh. Wouldn't the cells in the brain still continue to decay as they always did?
You are not allowed to view links. Register or Login

Offline _Xenu_

Re: Head Transplants Move Closer to Reality
« Reply #3 on: July 01, 2013, 10:31:31 AM »
Quote from: "Plu"
Uh. Wouldn't the cells in the brain still continue to decay as they always did?
Well, immortality short of brain disease anyway.
Click this link once a day to feed shelter animals. Its free.

You are not allowed to view links. Register or Login

Offline PopeyesPappy

Re: Head Transplants Move Closer to Reality
« Reply #4 on: July 01, 2013, 10:34:24 AM »
Head transplants aside the technology that would make something like that possible would have to applicable to repairing spinal injuries.
Save a life. Adopt a Greyhound.


Offline Plu

Re: Head Transplants Move Closer to Reality
« Reply #5 on: July 01, 2013, 10:38:43 AM »
Quote from: "_Xenu_"
Quote from: "Plu"
Uh. Wouldn't the cells in the brain still continue to decay as they always did?
Well, immortality short of brain disease anyway.

And, you know, old age. So not very immortal at all.
You are not allowed to view links. Register or Login

Offline _Xenu_

Re: Head Transplants Move Closer to Reality
« Reply #6 on: July 01, 2013, 10:40:55 AM »
Quote from: "PopeyesPappy"
Head transplants aside the technology that would make something like that possible would have to applicable to repairing spinal injuries.
Thats what the articles about. Head transplants were successful in the 70s using chimps, but always resulted in paralysis. Now they've found a way to repair the damage, at least in rats.
Click this link once a day to feed shelter animals. Its free.

You are not allowed to view links. Register or Login

Re: Head Transplants Move Closer to Reality
« Reply #7 on: July 01, 2013, 01:42:14 PM »
Quote from: "Solitary"
Why would anyone want immortality accept they don't want to non exist. To me hell is never being able to die no matter what for eternity. I'd rather not exist for eternity.   :shock:  One life time is enough for me.  :-k   :Hangman:  Solitary

This is just buying an extra 30-40 years though.  I wouldn't mind having a couple of extra years to work on some stuff.
Winner of WitchSabrinas Best Advice Award 2012


We can easily forgive a child who is afraid of the dark; the real
tragedy of life is when men are afraid of the light. -Plato

Re: Head Transplants Move Closer to Reality
« Reply #8 on: July 01, 2013, 03:57:46 PM »
It would have the downsides of any major transplant: risk of rejection, need for immunosuppressant drugs.
Atheists are not anti-Christian. They are anti-stupid.--WitchSabrina

Re: Head Transplants Move Closer to Reality
« Reply #9 on: July 02, 2013, 02:41:53 AM »
My skeptic radar pinged on this, so I checked out the You are not allowed to view links. Register or Login. Here's the top one:

Quote
Spinal Cord Injury (SCI) researcher here.

Hard to tell if this is being misreported or what - that's not what these cited studies imply at all.

Pissing in cereal: Many rats given complete spinal transections do recover some function, such as bladder control, within weeks. This is without any intervention in a lot of cases. When you give an animal a focal injury like the one these guys describe, you might remove the connectivity from supraspinal processing centers from that of the spinal cord, but everything outside the lesion/transection is spared. A cursory glance at existing SCI literature reveals that the spinal cord is a significant, semi-autonomous, processing organ that is responsible for a great deal of motor function all on its own, and some of this returns after injury, especially if you're sparing pretty much all the interneurons from the cervical level on down. Nothing new. In fact, the idea that regeneration of axons is solely responsible for the return of bladder function is... spurious.

More pissing in cereal: we've been regrowing axons for quite some time, and we still don't have a great idea about how to get them to synapse to the right locations. Chondroitinase, BDNF, NoGo, stem cells, artificial scaffolding, what have you; each and every one of these regenerative therapies have produced neurite outgrowth of some kind, the histology shows new axons crossing the lesion site... and we get zero functional recovery. We don't really understand this part too well. yet. Anyone that tells you different right now is a liar.

Full-body transplants? Might as well just hook up a head to a heart-lung machine and induce a coma. About the best you can do in the next "5-10 years" if you take their ludicrous time estimates at face value.
I have very limited knowledge of this field (and didn't read the literature recommended by the commenter) so I can't really judge the commenter's points, but I thought the counter-point was a worthwhile read.
"And, tricked by our own early dream
And need of solace, we grew self-deceived,
Our making soon our maker did we deem,
And what we had imagined we believed."
- Thomas Hardy

Offline Colanth

Re: Head Transplants Move Closer to Reality
« Reply #10 on: July 05, 2013, 12:46:09 AM »
I always take the word of the guy doing it over the word of a science reporter (who may have majored in botany) "explaining" an announcement he really doesn't understand.
Afflicting the comfortable for 70 years.
Science builds skyscrapers, faith flies planes into them.

 

SMF spam blocked by CleanTalk