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Brain implants allow paralysed monkeys to walk

nature.com

111–120 of 173 posts

Re: Brain implants allow paralysed monkeys to walk

#111
post #95
post #53

Earlier quoted context omitted.

Haha, we are already there. Here's the instructions from 2014 via a 15 year old: http://www.instructables.com/id/Control-a-Cockroach-With-Ard...

Holy shit. That made me queer at the same time fascinated

Wait, that made you homosexual? I'm going to assume that was a spellcheck or non-native speaking error...

Re: Brain implants allow paralysed monkeys to walk

#112
post #95

Earlier quoted context omitted.

Holy shit. That made me queer at the same time fascinated

Wait, that made you homosexual? I'm going to assume that was a spellcheck or non-native speaking error...

Queer can also mean strange, and indeed that was a historical meaning for quite some time.

Re: Brain implants allow paralysed monkeys to walk

#113
post #47

Earlier quoted context omitted.

> We next exploited cortical signals to decode the temporal structure of extensor and flexor hotspot activation. The spiking activity recorded from the left motor cortex displayed cyclic modulations that were phase-locked with right leg movements (Extended Data Fig. 4a). We developed a decoder that calculated the probability of foot-strike and foot-off events from this modulation to anticipate the activation of exten…

"Intact monkeys" is this a nice way of saying that they hadn't paralysed them yet?

Ya. They collected data from monkeys 1 and 2, then they injured monkeys 2 and 3. They collected data from monkeys 2 and 3, then they removed the spinal cord from all three.

Re: Brain implants allow paralysed monkeys to walk

#114
post #16
post #4

I cant help to feel sad for the monkey. I'm not sure this is the way research should be done. Why not try this on a smaller scale animal first before doing it on a monkey? Also you don"t need to cut the spinal cord todo data analysis.

Do you also feel sad for the millions of animals that live in miserable conditions for months/years just to be eaten by us afterwards? This is arguably less of a torture to a much smaller number of animals, yet it is heavily regulated in most countries.

Yes.

Re: Brain implants allow paralysed monkeys to walk

#115
post #16
post #4

I cant help to feel sad for the monkey. I'm not sure this is the way research should be done. Why not try this on a smaller scale animal first before doing it on a monkey? Also you don"t need to cut the spinal cord todo data analysis.

Do you also feel sad for the millions of animals that live in miserable conditions for months/years just to be eaten by us afterwards? This is arguably less of a torture to a much smaller number of animals, yet it is heavily regulated in most countries.

[deleted]

Re: Brain implants allow paralysed monkeys to walk

#116

Earlier quoted context omitted.

The intelligence argument is nonsense. Pigs are as intelligent as dogs. Describe the treatment of livestock (pigs, chickens, cows) but frame it as something that is happening to dogs and you'll drive hundreds of thousands of outraged meat eaters to signing a petition. The reason is cognitive dissonance, we're taught from the moment we can understand that it's okay to farm animals and very few people ever really think…

> To be humane means "having or showing compassion or benevolence" which is about as far from how you can describe the treatment of livestock that you can get. The problem I have with this is that like in so many other subjects, a too general term has been used to describe a specific type of practice. Traditional farming is very different than factory farming (which seems to be what you are describing), and there are…

Considering that 99 percent of US meat comes from factory farms[1], there's little point in discussing other forms of farming.

[1] http://www.theatlantic.com/health/archive/2010/12/why-free-r...

Re: Brain implants allow paralysed monkeys to walk

#117

Earlier quoted context omitted.

Science starts with observation, not experimentation. Honestly, if this was software, I'd consider this sort of approach as nothing short of pathetic. When I first reverse engineered firmware flashing software for mobile phones, experimentation was the absolute last thing I did - and all that experimentation could do was damage my phone, not another living creature. Instead I recorded observations of software operati…

You can't compare the two because one was created by humans and one was not. It's ridiculous to compare these two. Here's a more accurate scenario: You need to debug this software without a keyboard, mouse, monitor. The language is an assembly language written by aliens with no documentation that uses quantum states in protons to manage the machine. Oh by the way, it's encrypted and obfuscated into nothing but MOV in…

Actually, the electronics analogy is apt for more difficult cases than the OP's. If communications are encrypted or signed you may be out of luck unless you can extract the software from one of the devices; sometimes that's almost impossible, sometimes it can be done but only by disassembling the device (frequently an irreversible process) and reading the data off an EEPROM chip or something. If the protocol directly involves hardware (e.g. hardware crypto), then the state of the art permits nothing better than experimentation, combined with some crude 'in vivo' attacks like differential power analysis. In theory, after decapping and delayering the chip (also irreversible), a scanning election microscope can show the transistor layout clearly enough to reconstruct its functionality, but no software exists to do this automatically, and with billions of transistors good luck doing it manually.

Re: Brain implants allow paralysed monkeys to walk

#118

Earlier quoted context omitted.

> we all have are cognitive dissonances To be honest I haven't found a bigger cognitive dissonance than the love animals / eat animals one.

I think the dissonance is more pronounced in love animals / eat mistreated animals. Empathy developed presumably along with the enjoyment for taste of animal fats and protein

That dissonance can be resolved relatively easily by throwing money at the problem and eating non-mistreated animals. Love/eat is a harder moral problem IMO because there is no acceptable workaround, at least today. Someday there will be one: we'll be able to buy synthetic meat that's truly equivalent to animal meat (maybe grown with animal stem cells), and eventually the harvesting of real animals will end. But that won't mark any kind of moral evolution, only a newfound ability to not have to make a choice.

Re: Brain implants allow paralysed monkeys to walk

#119
post #7

"For more than a decade, neuroscientist Grégoire Courtine has been flying every few months from his lab at the Swiss Federal Institute of Technology in Lausanne to another lab in Beijing, China, where he conducts research on monkeys with the aim of treating spinal-cord injuries. The commute is exhausting — on occasion he has even flown to Beijing, done experiments, and returned the same night. But it is worth it, say…

Many people would consider torture worse than murder, basically.

Re: Brain implants allow paralysed monkeys to walk

#120
post #7

"For more than a decade, neuroscientist Grégoire Courtine has been flying every few months from his lab at the Swiss Federal Institute of Technology in Lausanne to another lab in Beijing, China, where he conducts research on monkeys with the aim of treating spinal-cord injuries. The commute is exhausting — on occasion he has even flown to Beijing, done experiments, and returned the same night. But it is worth it, say…

Regulatory ethics questions aside, why wouldn't he just live in China?
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