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Evolving descriptive text of mental content from human brain activity

bbc.com

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Re: Evolving descriptive text of mental content from human brain activity

#21
post #4

I have a PhD student working on EEG audio decoding. We are presently focused on a simpler subtopic: the detection of consonance and dissonance in the brain as it listens to music.

Could you link some of your works? I’m very curious about reliability of EEG in terms of consistency between sessions.

Re: Evolving descriptive text of mental content from human brain activity

#22

> "It wasn't perfect, but 60% of the words were judged intelligible by testers" I don't understand this part. Are they trying to pull the audio of the words out of the brain or something? I'd think it would be easier to use a dictionary of words, and use some machine learning to try and pull out the most likely next word from the brain activity, in which case 100% of the words would be intelligible

>in which case 100% of the words would be intelligible

what percentage of the words would be correct though?

Re: Evolving descriptive text of mental content from human brain activity

#23
post #8

Earlier quoted context omitted.

"Hit him with this $5 wrench until he tells us the password" XKCD 538

We normally do not accept people being hit with wrenches (or a contextual contemporary) in criminal justice trials.

Being hit with a wrench seems less invasive and even preferable compared to mind-reading brain surgery.

Re: Evolving descriptive text of mental content from human brain activity

#24

> "It wasn't perfect, but 60% of the words were judged intelligible by testers" I don't understand this part. Are they trying to pull the audio of the words out of the brain or something? I'd think it would be easier to use a dictionary of words, and use some machine learning to try and pull out the most likely next word from the brain activity, in which case 100% of the words would be intelligible

>in which case 100% of the words would be intelligible what percentage of the words would be correct though?

No idea, but the words themselves would be intelligible. The only way I can think that they could be generating unintelligible words is if theyre building them from tokens/letters, or generating audio directly

Re: Evolving descriptive text of mental content from human brain activity

#25

Prediction: even if this requires surgery, unlocking inner thought will be used in criminal proceedings to establish guilt or attempt to be used to prove innocence. It will definitely be used unethically in military/intelligence interrogations until the law catches up.

The worst: ads.

Re: Evolving descriptive text of mental content from human brain activity

#26
>> The answer to whether the tech could identify inner speech was a tentative "yes". For a task involving imagining a sentence, the researchers were able to achieve an accuracy rate of up to 74% in real time. For the tasks designed to prompt spontaneous inner speech, accuracy was reduced but still above chance.

Did a number go missing from this sentence? One accuracy rate was "74%", the other was "reduced but still above chance". Why leave things vague? All that accomplishes is that it makes me distrust the factuality of the article.

Re: Evolving descriptive text of mental content from human brain activity

#27
post #8

Earlier quoted context omitted.

"Hit him with this $5 wrench until he tells us the password" XKCD 538

We normally do not accept people being hit with wrenches (or a contextual contemporary) in criminal justice trials.

Not yet.

Re: Evolving descriptive text of mental content from human brain activity

#28
post #20

Earlier quoted context omitted.

> are there people with no intrusive thoughts whatsoever? There are people with no internal monologue whatsoever.

I think every verbal person has the ability to “speak” phrases in their mind; people without an internal monologue (as is, I suppose, the case for me) just don’t need / tend to do that with every thought they have.

When I was younger, I could only do it by making the movements with my tongue and sort of "whispering breathlessly"

Re: Evolving descriptive text of mental content from human brain activity

#29
post #23
post #8

Earlier quoted context omitted.

We normally do not accept people being hit with wrenches (or a contextual contemporary) in criminal justice trials.

Being hit with a wrench seems less invasive and even preferable compared to mind-reading brain surgery.

Thankfully we aren't forced to pick between them, "neither" is the current status quo and will do quite nicely for the foreseeable future.

Re: Evolving descriptive text of mental content from human brain activity

#30

Prediction: even if this requires surgery, unlocking inner thought will be used in criminal proceedings to establish guilt or attempt to be used to prove innocence. It will definitely be used unethically in military/intelligence interrogations until the law catches up.

The worst: ads.

Noooo. Makes me wonder how much money do you need to buy up all the ad slots in the world and replace them with blanks.
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