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The next most interesting direction the researchers could go would be if deletion is possible. I’m assuming the question of deletion being even possible would b

by sysbin 7y ago

The next most interesting direction the researchers could go would be if deletion is possible. I’m assuming the question of deletion being even possible would be amazing to find certainty. I’m speculating for an existing memory to be deleted, it has to be rewritten and thus typical deletion is impossible without rewriting. Once all this is perfected, the future technology of brain interface for humans will have even more potential. We’re going to be able to interact with our minds as we do everyday with computers. Very exciting!

pintxo 7y ago
Not sure I am looking forward to experience a blue screen like, in my brain.
- sysbin 7y ago
  I assume humans already experience a blue screen when suffering schizophrenia and or hallucinating.
  - samplatt 7y ago
    We experience blue screens dropping a bottle of milk. There's ways to freeze a brain or trap it into a kernal panic that require zero technology whatsoever.
tsimionescu 7y ago
I know this is all in the realm of pure speculation anyway, but why would you think it's plausible that a memory must be re-written instead of being deleted? People forget things all the time, so obviously you don't need to have an uninterrupted memory of your life so far. Are you simply thinking that memories only get deleted to make room for some other memories, not necessarily of the same events?
- sysbin 7y ago
  My theory is re-writing is simpler, more efficient, basically elegant and all that's needed for achieving the task of producing a memory. I don't necessarily think forgetting an event is illustrating memories being deleted because the same result can be from re-writing neurons for newer memories.
macrolime 7y ago
It's not the next step. That was the previous step. It's already known and demonstrated many times that deletion is possible, so now they wanted to know if they could also create memories. See more in Wikipedia https://en.m.wikipedia.org/wiki/Memory_erasure https://en.m.wikipedia.org/wiki/Memory_erasure
- sysbin 7y ago
  I'v been aware of some of the work you're referencing because of the popular goal for solving ptsd in psychiatry. The methods of "drug-induced amnesia, selective memory suppression, destruction of neurons, interruption of memory, reconsolidation,[1] and the disruption of specific molecular mechanism" are not necessarily as great comapred to what was done in the article where optogenetics is referenced as the method of creating memories. The current methods being used to attempt at deleting memories have resulted in consequences and typically considered extremely dangerous because of the inaccuracy of the methods. Making me skeptical if it's not just damage to the brain.
  - macrolime 7y ago
    Sure, if you want to ensure 100% that's there's no collateral damage to any other memories than what you try to delete, more refined methods like optogenetics will be needed.
buboard 7y ago
Most of this research is actually driven (and funded) by the desire to identify and erase memories for e.g. PTSD victims. It doesn't require "rewriting", there are ways to delete engrams with chemical inactivation for example. https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-016-0261-6 https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-01...

by sysbin 7y ago

pintxo 7y ago

Not sure I am looking forward to experience a blue screen like, in my brain.

sysbin 7y ago
I assume humans already experience a blue screen when suffering schizophrenia and or hallucinating.
- samplatt 7y ago
  We experience blue screens dropping a bottle of milk. There's ways to freeze a brain or trap it into a kernal panic that require zero technology whatsoever.

tsimionescu 7y ago

I know this is all in the realm of pure speculation anyway, but why would you think it's plausible that a memory must be re-written instead of being deleted? People forget things all the time, so obviously you don't need to have an uninterrupted memory of your life so far. Are you simply thinking that memories only get deleted to make room for some other memories, not necessarily of the same events?

sysbin 7y ago
My theory is re-writing is simpler, more efficient, basically elegant and all that's needed for achieving the task of producing a memory. I don't necessarily think forgetting an event is illustrating memories being deleted because the same result can be from re-writing neurons for newer memories.

macrolime 7y ago

It's not the next step. That was the previous step. It's already known and demonstrated many times that deletion is possible, so now they wanted to know if they could also create memories. See more in Wikipedia https://en.m.wikipedia.org/wiki/Memory_erasure https://en.m.wikipedia.org/wiki/Memory_erasure

sysbin 7y ago
I'v been aware of some of the work you're referencing because of the popular goal for solving ptsd in psychiatry. The methods of "drug-induced amnesia, selective memory suppression, destruction of neurons, interruption of memory, reconsolidation,[1] and the disruption of specific molecular mechanism" are not necessarily as great comapred to what was done in the article where optogenetics is referenced as the method of creating memories. The current methods being used to attempt at deleting memories have resulted in consequences and typically considered extremely dangerous because of the inaccuracy of the methods. Making me skeptical if it's not just damage to the brain.
- macrolime 7y ago
  Sure, if you want to ensure 100% that's there's no collateral damage to any other memories than what you try to delete, more refined methods like optogenetics will be needed.

buboard 7y ago

Most of this research is actually driven (and funded) by the desire to identify and erase memories for e.g. PTSD victims. It doesn't require "rewriting", there are ways to delete engrams with chemical inactivation for example. https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-016-0261-6 https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-01...