No Body, No Problem: Can a Head Survive?

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SUMMARY

This discussion explores the hypothetical scenario of sustaining life in a severed head using advanced technology. Participants highlight the need for a machine to pump blood and provide essential nutrients to the brain, specifically the medulla oblongata, which regulates vital functions. Ethical considerations arise regarding the implications of maintaining consciousness without a body, with references to science fiction and cryonics as cultural touchpoints. Ultimately, the consensus leans towards the impossibility of such a scenario with current technology and the ethical dilemmas it presents.

PREREQUISITES
  • Understanding of human anatomy, particularly the functions of the medulla oblongata.
  • Basic knowledge of medical ethics related to life support and brain death.
  • Familiarity with cryonics and its implications for preserving human consciousness.
  • Awareness of science fiction narratives that explore themes of consciousness and identity.
NEXT STEPS
  • Research advancements in artificial organ technology and blood circulation systems.
  • Explore the ethical frameworks surrounding brain death and life support decisions.
  • Investigate the principles of cryonics and current practices in preserving human remains.
  • Read science fiction literature that addresses the concept of consciousness beyond physical existence.
USEFUL FOR

This discussion is beneficial for bioethicists, medical professionals, and science fiction enthusiasts interested in the intersection of technology, consciousness, and ethical dilemmas in medicine.

bassplayer142
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This may be an absurd question partially due to the fact that I don't know a lot about biology. But is it possible to sustain life for a person who lost his head. What I mean, is a machine that pumps blood and supplies the head with everything it needs to keep surviving. From the top of my head, I can only thing of blood and information from the nervous system as being an input to the head from the body.
 
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I don't think with present technology we can interface a head to a machine. But if you duplicate the necessary conditions as provided by rest of the body, then I don't see why not.
 
The brain (medulla oblongata) controls blood pressure, respirations and heartbeat, for example. The headless body will not survive long.

Keeping bodies alive when there is absolutely no way to "wake them" violates medical ethics, anyway.
 
Brain-death means dead.
 
I think bassplayer is asking if a head can be kept alive, not the body.

There is an old scifi classic that played with this idea: The Brain That Wouldn't Die. Now public domain.
http://video.google.com/videoplay?docid=6660611491774828467

That movie scared the bejeesuz out of me when I was a kid. :biggrin:
 
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Yes I did mean the head being alive and not the body. I realize its not possible but thought it would be interesting if someday it would be.
 
You may read Roald Dahl's classic short story on that theme..
 
jim mcnamara said:
Keeping bodies alive when there is absolutely no way to "wake them" violates medical ethics, anyway.
Why?
I see absolutely nothing unethical (in principle) in maintaining an individual's mental existence beyond the duration of his or her body's existence (for example, transferring the thoughts etc onto artificial circuits, creating a soul-bank).

It MIGHT be unethical to demand of others to pay the upkeep of such machinery if the disembodied souls would not be able to provide services of various kinds to those others.
 

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