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Charan Ranganath

๐Ÿ‘ค Speaker
3063 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

There's all sorts of work in animal models that I can get into, you know, sleep. I think there's so much interesting stuff that's being discovered in sleep right now. Being able to just record from large populations of cells and then be able to relate that.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

There's all sorts of work in animal models that I can get into, you know, sleep. I think there's so much interesting stuff that's being discovered in sleep right now. Being able to just record from large populations of cells and then be able to relate that.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

There's all sorts of work in animal models that I can get into, you know, sleep. I think there's so much interesting stuff that's being discovered in sleep right now. Being able to just record from large populations of cells and then be able to relate that.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And I think the coolest thing gets back to this QR code thing, because like what we can do now is like I can take fMRI data while you're watching a movie. Or let's do better than that. Let me get fMRI data while you use a joystick to move around in virtual reality. So you're in the metaverse, whatever, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And I think the coolest thing gets back to this QR code thing, because like what we can do now is like I can take fMRI data while you're watching a movie. Or let's do better than that. Let me get fMRI data while you use a joystick to move around in virtual reality. So you're in the metaverse, whatever, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And I think the coolest thing gets back to this QR code thing, because like what we can do now is like I can take fMRI data while you're watching a movie. Or let's do better than that. Let me get fMRI data while you use a joystick to move around in virtual reality. So you're in the metaverse, whatever, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

But it's kind of a crappy metaverse because there's always so much metaversing you can do in an MRI scanner. So you're doing this crappy metaversing. So now I can take a rat

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

But it's kind of a crappy metaverse because there's always so much metaversing you can do in an MRI scanner. So you're doing this crappy metaversing. So now I can take a rat

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

But it's kind of a crappy metaverse because there's always so much metaversing you can do in an MRI scanner. So you're doing this crappy metaversing. So now I can take a rat

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

record from his hippocampus and prefrontal cortex and all these areas with these really new electrodes to get massive amounts of data and have it move around on a trackball in virtual reality in the same metaverse that I did and record that rat's activity. I can get a person with epilepsy who have electrodes in their brain anyway to try to figure out where the seizures are coming from.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

record from his hippocampus and prefrontal cortex and all these areas with these really new electrodes to get massive amounts of data and have it move around on a trackball in virtual reality in the same metaverse that I did and record that rat's activity. I can get a person with epilepsy who have electrodes in their brain anyway to try to figure out where the seizures are coming from.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

record from his hippocampus and prefrontal cortex and all these areas with these really new electrodes to get massive amounts of data and have it move around on a trackball in virtual reality in the same metaverse that I did and record that rat's activity. I can get a person with epilepsy who have electrodes in their brain anyway to try to figure out where the seizures are coming from.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And if it's a healthy part of the brain, record from that person, right? And I can get a computational model. And one of the brand new members in my lab, Tyler Bond, is just doing some great stuff. He relates computer vision models and looks at the weaknesses of computer vision models and relates it to what the brain does well. Nice.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And if it's a healthy part of the brain, record from that person, right? And I can get a computational model. And one of the brand new members in my lab, Tyler Bond, is just doing some great stuff. He relates computer vision models and looks at the weaknesses of computer vision models and relates it to what the brain does well. Nice.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And if it's a healthy part of the brain, record from that person, right? And I can get a computational model. And one of the brand new members in my lab, Tyler Bond, is just doing some great stuff. He relates computer vision models and looks at the weaknesses of computer vision models and relates it to what the brain does well. Nice.

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And so you can actually take a ground truth code for the metaverse, basically, and you can feed in the visual information, let's say the sensory information or whatever that's coming in, to a computational model that's designed to take real-world inputs, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And so you can actually take a ground truth code for the metaverse, basically, and you can feed in the visual information, let's say the sensory information or whatever that's coming in, to a computational model that's designed to take real-world inputs, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And so you can actually take a ground truth code for the metaverse, basically, and you can feed in the visual information, let's say the sensory information or whatever that's coming in, to a computational model that's designed to take real-world inputs, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And you could basically tie them all together by virtue of the state spaces that you're measuring in neural activity, in these different formats, in these different species, and in the computational model, which I just find that mind-blowing. You could do... different kinds of analyses on language and basically come up with... Basically, it's the guts of LLMs, right?

Lex Fridman Podcast
#430 โ€“ Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

And you could basically tie them all together by virtue of the state spaces that you're measuring in neural activity, in these different formats, in these different species, and in the computational model, which I just find that mind-blowing. You could do... different kinds of analyses on language and basically come up with... Basically, it's the guts of LLMs, right?