Episodios

  • Deep Entorhinal Cortex_ Circuit Organization and Memory

    Deep Entorhinal Cortex_ Circuit Organization and Memory
    Dec 31 2024
    A deep dive on the entorhinal cortex.
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    19 m
  • Hippocampal Reinstatement of Episodic Details During Simulation

    Hippocampal Reinstatement of Episodic Details During Simulation
    Dec 23 2024
    This is a brief discussion of the article: "Hippocampal Reinstatement of Episodic Details During Simulation" written by Preston P. Thakral, Kevin P. Madore, Donna Rose Addis, and Daniel L. Schacter
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    14 m
  • Ep3. Interview with Dr. Andrew Budson

    Ep3. Interview with Dr. Andrew Budson
    Aug 20 2024
    Dr. Andrew Budson published a theory paper in 2022, called "Consciousness as a memory system". Our conclusions are very similar, except that he does not put the same emphasis on the hippocampus and episodic memory specifically. We discuss his paper, and the differences between the models.

    Budson's paper - .pdf download

    Budson's paper - journal

    A YouTube video version, with captions
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    49 m
  • Ep2. Audiobook version of the published paper

    Ep2. Audiobook version of the published paper
    Jun 11 2024
    Audiobook version of the peer-reviewed paper "Neurotypical Subjective Experience is caused by a hippocampal simulation", written by Matt Faw and Bill Faw, published by the journal "WiRES Cognitive Science".

    website: consciousnessdoc.com
    youtube version with captions and citations: https://youtu.be/Y71K8Ax7j8o
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    1 h y 32 m
  • Start Here! Episode 1

    Start Here! Episode 1
    Mar 5 2024
    A new theory proposes the anatomical basis for Subjective Experience. Discover how it works, and why it's less mysterious than it seems.Watch it on YouTube: https://youtu.be/lTrPWrLMaGgVisit our site: consciousnessdoc.comVersion for experts: https://youtu.be/z6vCvs0UTGMA hip-hop version: https://youtu.be/i-_-4F1rXasTranscript:If you’ve ever had a psychedelic hallucination, you know that your subjective experience is constructed by your brain.My own most vivid memory of that was my first time on mushrooms, appropriately, at Burning Man. My friend, who brought the mushrooms, her face appeared to be dotted with extra eyeballs, like twenty of them, all staring and blinking at me.Obviously, my perception was an error. But the hallucination showed me something very important, not about the drug, but about my experience. What I learned is that what I see, when I open my eyes, is not the real world. Rather, what is in my perception is actually a construction. A simulation, built by my brain. Clearly, when my brain added all those extra eyeballs to my friend’s face, it was making some serious mistakes (I mean, of course). My perception of my friend’s face was clearly mis-constructed. But (and this is the part that blew MY mind) that also means that all of normal perception is likewise constructed. My brain didn’t just build a weird experience for me on psilocybin.It is always building my perception.(music change)I should probably quickly make a distinction between the words ‘perception’ and ‘sensation’. ‘Sensation’ is the neural signal. Some remote sensing neuron, whether in the skin or the nose, on the tongue or in the ear canal or wherever, that neuron is activated by some stimulus, and sends its signal to the brain. Sensation. Once at the brain, that signal is DECODED by the relevant brain part, where its information may feed other brain processes like behavior. Perception, by contrast, is this simulation I’m talking about, this CONSTRUCT. Perception is clearly informed by sensation, (at least during waking ours...), but as the mushroom trip showed me, the simulation isn’t always faithful in its reproduction.And not all sensation ends up IN perception. For example: if you’re driving your car while having a conversation with your friend, (as long as the driving is going well), You’re probably experiencing more perception of the conversation than you are of the driving (even though the driving is the more dangerous part!) You’re wrapped up in that conversation, and the driving seems to be almost automatic? However, your brain is receiving all kinds of sensation about the road. And it is using that sensation to motivate behavior: steering, using the turn signals, braking, etc. But neither the sensation nor the behavior is very well represented within perception. Perception instead includes mostly just the conversation.(music change)And don’t get me wrong; if the drive suddenly became problematic, then your perception would quickly shift over. You would suddenly become very aware of the road, and the conversation would disappear boop. Your brain tries to represent the most important things that are happening, right now, within subjective experience and it leaves a lot of the lesser information out. (music change)Your perception even intentionally leaves out the one thing that your eyes (and thus your brain) sees the most. Which is: your nose. Your nose is within your field of visual sensation, all the time. If you look, there it is. You can also see your eyelashes. And if you wear glasses, you know they dominate your vision. But your experience generator tends to leave all that out. Most of the time, it’s as if your nose (and eyelashes and eyeglasses) aren’t there at all. (music change)So perception represents not everything that’s going on, but only what’s important to your brain, at any particular moment in time. And it isn’t even necessarily about what’s actually happening in the outside world. For example, think about your Subjective Experience while you’re reading a fascinating novel.Yes! You do perceive the words on the page: black letters on white paper, but... That perception tends to be a relatively unimportant part of your experience, just like the driving was. What’s really important about the experience of reading a novel, is what your imagination adds. You feel the character’s emotions, you see what the author describes. You add the qualities of color and texture and even taste and smell and pain to this inner movie you make in your head.So, if we want to explain Subjective Experience, we also have to explain this inner movie, this mind’s eye. We need to find a mechanism in the brain (that will turn sensations into perceptions), plus, it needs to feature the fruits of our imagination. Not only reading a book, but also: having a daydream. Or solving problems in...
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    36 m
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