Scientists Write Memories Directly Into Fly Brains
TheClockworkSoul writes "Researchers at the University of Oxford have devised a way to write memories onto the brains of flies, revealing which brain cells are involved in making bad memories. The researchers said that in flies, just 12 brain cells were responsible for what is known as 'associative learning.' They modified these neurons by adding receptors for ATP, so that the cells activate in the presence of the chemical, but since ATP isn't usually found floating around a fly's brain, the flies generally behave just like any other fly. Most interestingly, however, is that the scientists then injected ATP into the flies' brains, in a form that was locked inside a light-sensitive chemical cage. When they shined a laser on the fly brains, the ATP was released, and the 'associative learning' cells were activated. The laser flash was paired with an odor, effectively giving the fly a memory of a bad experience with the odor that it never actually had, such that it then avoided the odor in later experiments. The researchers describe their findings in the journal Cell."
like if i made you smell something then hit you in the head with a pipe
you would think pipe when you smelled that again?
The scientists later discovered that even fly's without this injected memory avoided the odor. One man was quoted saying "It smelled pretty bad."
This is so ridiculously awesome.
There is nothing cooler than this experiment.
Wouldn't having a laser pointed at your brain in the presence of an odor kind of count as a 'bad experience'?
I'm not sure how you create a control group for an experiment like this- shine the laser in the absence of odors so the fly is terrified of clean places? Isn't that how most flies act already?
-b
No offense, but I've stopped responding to AC's.
In my day we just ripped their wings off. This new stuff is REALLY sick...
sudo mount --milk --sugar
NPR's Science Friday had an interview with the one of the scientists this morning. You can listen to the segment here: http://www.sciencefriday.com/program/archives/200910161
This kind of surgery smells of butchery. Can't wait for upgrade patches.
http://xkcd.org/644/
Are we sure it was a new memory they created? Because we can't just interview the flies about what they were thinking, how do we know the smell conjured up a fake memory rather than, say, just a strong feeling of unease?
Doesn't having your "this is a bad experience" receptors activated count as a bad experience? I don't mean the whole brain-and-laser unpleasantness, I mean having negative-association cells firing in your brain at all. It might not just count as a bad association later, it might be pretty unpleasant now. In which case it's not a fake memory, it's a real memory.
For flies maybe this question has no meaning... maybe flies aren't conscious. If they did this to a higher animal (I have a horrible suspicion they will) it would be a question to ask. But a good question for this experiment would be: when they fire those brain cells, do the flies try to avoid what's going on immediately?
Help me!
I've got a list of beautiful women I'd like to remember, if you know what I mean...
Jewel Staite
Summer Glu
Laura Harris
Otherwise the inevitable "writing to memory in the browser" hype will amount to flyshit.
WHOA, I know Kung-Fu!
Rules of Conduct:
#1 - The DM is always right.
#2 - If the DM is wrong, see rule #1
Is there any morally correct application for 'writing' false memories into a brain? Or is this yet one more experiment that we've done just because we can, hang the consequences? Don't get me wrong, I'm all for scientific investigation, but this seems like it's beginning to cross the line.
On the one hand, this teaches us more about memory. On the other, what's stopping it from one day being used on humans? Just because it's not the primary goal doesn't rule it out as an extension.
Maybe I'm just paranoid, but I think there are some experiments that just shouldn't be done.
Funny may not give karma, but +5 Informative never made anyone snort coffee out their nose.
We already know we can implant false memories into humans and now a method for creating false bad memories in flies by command? Things are looking good. I just want a way to model this as a system instead of just being able to target groups of cells. Full neural systems would be awesome!
Eat sleep die
Hmm... let's see here..
Bad odor.... Check.
Laser beam directed INTO the brain.... uh... Check.
"Bad memories" induced.... err... Check.
And in other news... sugar tastes good.
Man, this shit is way cooler than IT... :)
I really wanna do some brain memory programming...
that lived in a bush outside your window?
Orange body, green legs?
Watched her build a web all Summer.
Then one day there was a big egg in it.
The egg hatched...
And a hundred baby spiders came out
And they ate her.
...is a laser?
The aliens are all false memories, the probing isn't.
"Memories! You're talking about memories!"
Well, the fly DID come back thinking it was a secret agent on Mars...
Want to improve your Karma? Instead of "Post Anonymously", try the "Post Humously" option.
the flies used 'atp-get'
They stole this idea from Joss Whedon.
"Help me! Help me!"
Just 12 brain-cells? Sounds ready for lobbyists to use on politicians. They won't have to use cash anymore.
Table-ized A.I.
At some point the fly was heard screaming "My name is not Quaid!"
A fly was given a faked bad memory associated with an odour. How screwed up is that when flies like shit.
Does this explain why I have 8 years' worth of awful memories of George W. Bush being President? Please say yes.
....its probably a terrorist fly, Lets torture it some more.
can I have one of these with USB?
[ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo *Click*
Finally, evidence for those who have held off purchasing their tin-foil hats.
When they shined a laser on the fly brains, the ATP was released, and the 'associative learning' cells were activated. The laser flash was paired with an odor, effectively giving the fly a memory of a bad experience with the odor that it never actually had, such that it then avoided the odor in later experiments.
People who don't know how brains learn, might believe the "that it never actually had" part.
But if you know anything about that, you will know that what they did, was the same thing as what we call "learning": Associating something with something else.
In this case they just provided the "bad feeling" part of the association, while the odor was in place. Causing the fly to learn that the odor causes that bad feeling.
The same thing as if someone would always kick you in the balls when you see a pretty lady. (Just that the kicker would be invisible.)
And actually, a large laser on your brain *is* something pretty bad, that is unknown to a fly.
So this is nothing very special at all! They just found another way to "kick the fly in the balls". ^^
With an indirect way, using ATP and laser, but still just that.
Any sufficiently advanced intelligence is indistinguishable from stupidity.
will this work on my girlfriend, LOL yes honey I did remember your birthday, dont you remember I got you that ring...you must have lost it
It is "memory" after all, ad Rambus thinks everyone should pay them.
* Carthago Delenda Est *
Just listened to the NPR interview with one of the researchers - turns out this is just a method demonstration. The method itself lets them activate *any* class of neurons (with sufficiently distinct markers). They went so far as to turn on (oh Lord, forgive me for my puns) male courtship behaviors in male flies - and, strangely enough, in female flies too. The memory-inducing one is just the flashiest, and the one that will probably lead to the most new fundamental knowledge about brain function.
So, the flies were "gifted".
"...the flies' brains, in a form that was locked inside a light-sensitive chemical cage." Arrrgh! They seperated the fly's brain from the fly, locked the brain in a cage and did stuff to it??? Arrrrgh!!!!
Well what will they do next? So, this is the shape of new mobile memory: fly brains. I for one would like to also write my memoirs on a fly brain just like these scientists. So, I'll then be able to put all my data onto these flies brains. I can't wait for windoze to appear on flys brains. Windows fly-brain edition 20.
...write an unpleasant experience with an odor? Okay, I know it's just a stupid fly, but why not write a nice, pleasant experience with an odor that usually doesn't attract flies? They only live for a few hours, why fill their heads with bad things that didn't really happen?
--I'm so big, my sig has its own sig.
-- See?