What is Consciousness? | INNER COSMOS WITH DAVID EAGLEMAN
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What is Consciousness? | INNER COSMOS WITH DAVID EAGLEMAN
How do your billions of tiny brain cells build consciousness as they chatter away with electrical spikes and chemical signals? And why is your laptop, with its sophisticated algorithms and billions of parts, presumably not conscious? Could other large systems like a city become conscious? And what does this have to do with ant hills, blue birds, or your memory of your first kiss? Join Eagleman on a journey into one of the central mysteries of neuroscience: why we have awareness.
Original Air Date: July 17, 2023
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Contents:
00:00:00 - Start
00:00-07:05 - Defining Consciousness
07:05-12:01 - The Brain
12:01-15:24 - Complex Systems
15:24 -21:39 - Emergent Properties
21:39- 26:29 - Scientific Theories of Consciousness
26:29 - 33:22 - The Binding Problem
33:22- 36:34 - Materialism
36:34 - 39:51 - Quantum Mechanics
Neuroscientist and author David Eagleman discusses how our brain interprets the world and what that means for us. Through storytelling, research, interviews, and experiments, David Eagleman tackles wild questions that illuminate new facets of our lives and our realities.
New episodes weekly on iHeartRadio.
TAGS: #DavidEagleman #InnerCosmoswithDavidEagleman #InnerCosmos #Science #Neuroscience #Neuroscientist #Eagleman
The metaphor of a radio materialist in a desert trying to find the correlates between the radio and the voices deserves to be one the most interesting thought experiment. It's impossible not to love David Eagleman's genious brain
Thank you so much, Inner Cosmos is my favourite podcast at the moment.
The universe and reality was created for us.
Thank you so much for truly expanding our understanding of human behavior.
Have you considered having a debate with Bernardo Kastrup? I would love to witness that.
You ask all the questions I do in such a simple way. Great work.
After watching the way large language models work, with a prompt.. Causing a chain reaction of probability for the next word, I believe that's what's happening in our heads.
Simple example is when you try and remember the lyrics to a song you know, you have to start at the start to get to the part you forgot. Because you need that language model to follow a sequence.
I believe memory which is intimately tied to consciousness, must have some physical changes happen when learning new info, the I. Pulse pattern may cautirise a neuron or I saw somewhere it may even unpack the DNA and alter it.
When when the same pattern or similar fires through the network, it activates anything similar within a certain region, forming a cascade of thoughts and memories in your conscious mind.
I'd love to put someone, young with few memories or old with dementia, into a sensory dep tank, scan their brain, teach them something new. Scan the brain again and see if you can locate where that memory is stored.
Then we just need to analyse those neurons and see what changed. How did it no activate prior to the learning and now suddenly activates when it recalls that new info.
There in lies the secret to consciousness. How are memories stored. And once we know that. We will have a better understanding of how the average of a collection of memories forms the perception of consciousness. Which is probably just us experiencing the decided tip of the iceburg of indicision
Thank you Sir!
Thank you❤
Consciousness begins at the point where language breaks down and can no longer serve the function to form a message that is useful for us to accurately describe something, but the catch is we cannot even accurately describe anything. So in essence, consciousness permeates and pervades us. We are literally it trying to describe itself.
"consciousness permeates and pervades us"
Self evidently...
Mind is composed entirely of thoughts.
Being conscious is a mental activity and
therefore must be composed entirely of thoughts.
The self is also a thought (though the definition may include the body).
Thoughts are about something or other, including other thoughts.
That is to say, thoughts represent.
Impinging environmental energies initiate biochemical chain reactions that
culminate in modulation of the discharge timing patterns of neurons that
connect sense organs to the brain.
These modulations are encoded representations of the impinging energies.
Now extrapolate!
Imagine every brain neuron is maintaining a representation
(in the encoded form of its discharge timing pattern).
Here we have our source of thoughts
out of which selfs and minds and being conscious must be constituted.
Imagine a hundred billion representations, a brainful, each synaptically connected
with 20,000 (on average) other representations so that
they are able to intermodulate in the process we call thinking.
Now that we know how thoughts are physically instantiated
our subsequent thoughts may figure out what a self is and how
intermodulation can make a self conscious...
Cheers!
Fascinating. Thank you for your passion and insight. I read Sum last month and reading Livewired now. Keep it all coming!
Favorite episode so far! Only thing I experience differently is I am usually conscious before and after waking. Before waking, I am in imagination schema which has been untethered from any modeling of physical realm for 8 hours. Ppl that awake from state 1 & 2 sleep often report they hadn't fallen asleep, also indicating they were still conscious, but primarily in imagination schema that was beginning to untether the of sounds in physical world from their physical cause and mapping instead to whatever they were thinking of. Of course, as you get deeper in sleep, the slowing frequency of brain waves hyperpolarizes cells, tending to prevent stimuli from entering cortex at all. I think why it feels like waking up is becoming conscious is that you map those sleep imaginations to 'not real,' which makes you forget, plus increase in brain wave frequency may lead to mapping to things in real world again frequently, shutting up the suggestions and memory frames of what you were just dreaming about.
Great episode! I find it fascinating that we are currently converging on consciousness both from neuroscience and AI/programming/math perspective. Exciting times
“Consciousness is a dance between perception and memory.”
- Consciousness in a Nutshell
It's one thing (a big thing) to become conscious of the feel of silk or the feeling of rain on a hot summer day...but it's yet (maybe) a bigger thing to judge that feeling. Why don't I like raw broccoli? My conscious self can taste it, experience it, notice it...but it also judges it as favorable or unfavorable. It's that last step that interests me with regard to AI.
While two machines might become sentient at the same time, will both machines like or hate the same things? Will one machine think that humans are cute and adorbs, while the other thinks we're mangy varmints that are pests to be eradicated?
I find this stuff endlessly fascinating. Had I not chosen to do music as a career, if I could go back in time, I'd seriously consider going into neurological science.
Thanks for the podcast!
Seems like I finally found my lost kindred: cat lover, a career in music, and a neverending fascination for neuroscience and perception and behavioral neurobiology.
Tip of the hat to you, good sir/lady! :D
Really very insightful video to have rational knowledge from scientific perspective... Have been doing meditation from last 1 year with lot many so called spiritual gurus however they have all imgination rather convincing logic for any kind of experience.... Best guard for them is - it can not be expressed in words as there is no words for those experiences... Another one is everyone is going to have different experiment.... Always wondering to have some rational & logical explanation for my own brain to convince it rather just going in black box with meditation..... There is lot of Jargon being used in spiritual world where you can't even ask question & always compel to experience something during meditation session to tell everyone that you felt something.... I guess now is the time to integrate Science with Meditation rather going to Guru.... I am big fan of you on how you explain the Brain which seems to be most complicated stuff even more than our cosmos....
We are just basically a higher level computer, no different from what we call a basic computer. We all perfoming instructions based on stimuli. How we process them might be different. Consciousness itself might be a byproduct of what we call LIFE itself. Its our own personal experiences subjective to us, but its really nothing, but it means so much to us. Like i said, we are no different from a computer, we might be diffrent in awareness. Beyond that, its nothing.
How would you explain dreams ?
since all the signals in the brain are made of the same stuff, what differentiates them. Is it the repetitive rhythms that are different and they get somehow bundled together ? And how many bundles make up consciousness, layers and layers?
Hi eagleman huge fan , i have a question,
If the whole universe and its structure infuences our conciousness then change in universe can effect our conciousness, this basically means that aliens are trying to communicate to us through conciousness?
Really enjoy the content of the podcast. One small comment though, the constant switching between two perspectives makes it difficult to watch. I'm sure you have a program set up that does this automatically, and having the change of perspective is visually interesting, but I think it's happening too often. The constant switch every couple seconds is distracting and actually makes you a little hard to watch. Just a small feedback--the content is great.
86 billion cells not 100 billion ur living in d past this video is obviously older then what it shows brilliant scientist David hight of respect for ur work neuroscience has thought me so much
🤍
My RED is not YOUR red, my son told me.
This is what im here for 😂
Can we have an episode about what happens to our brain that we commit suicide?
Sure if all the pieces of a plane are assembled correctly and the plane is all systems go the plane flies but the plane is not conscious.It's not ALIVE.The same goes for computers.Many people in the quantum physics community think of consciousness as being transcendent.If it were an emergent thing as you say we could bring people back from the dead by now just by getting all things all systems go again in the brain and body.There are two things that scientist think of as being transcendent: the eternal void that everything came from at the time of the big bang and consciousness.
@ElParacletoPodcast
you take an easy shot without giving him credit on how sound his juxtaposing of examples to a mind/intelligence/consciousness is from relatable systems, be it organic or inorganic. Your concerned “bigger problem” would be his eventual address, since it should be a tool an organism advanced from aesthetic-experience-chemistries to none chemicalized signals.
you then are the “another failed” comment, due to your unattempted critique to contradict where his relations of systems fail.
but ya, it’s a fail, if unless original-progressed nothing from common ignorance on the overall subject of M/I/C since Michael Levin’s works on bioelectrics near appropriate steps to inquire on given academic knowledge to what is the materiality of M/I/C, which already code without the sequences of genotypes.
I’ll tell you soon, about all that up there slapped to you, sometime this year
This conflates reaction to stimuli, and conciousness.
This materialist world view can not account for metaphysics, and requires being granted creation, as well as evolution.
It isn't even a hypothesis. To be a legit hypothesis, you would have to come up with control, dependent, and indepe variables to perform a scientific experiment. There is nothing proveable related to conciousness to remove and add in order to conduct an experiment.
If a brain is damaged, it could be said that the body's ability to react to stimuli is damaged, but can show that the person's actual conciousness is effected.
This dude uses the terms theory and hypothesis interchangeably. A good sign that he is intentionally bastardizing the scientific method.
Another failed attempt to define consciousness, then you have an even bigger problem, moral thoughts, that have nothing to do wit the physical, but with abstract concepts.
you take an easy shot without giving him credit on how sound his juxtaposing of examples to a mind/intelligence/consciousness is from relatable systems, be it organic or inorganic. Your concerned “bigger problem” would be his eventual address, since it should be a tool an organism advanced from aesthetic-experience-chemistries to none chemicalized signals.
you then are the “another failed” comment, due to your unattempted critique to contradict where his relations of systems fail.
but ya, it’s a fail, if unless original-progressed nothing from common ignorance on the overall subject of M/I/C since Michael Levin’s works on bioelectrics near appropriate steps to inquire on given academic knowledge to what is the materiality of M/I/C, which already code without the sequences of genotypes.
I’ll tell you soon, about all that up there slapped to you, sometime this year