Well Dark, I had other things planned for this afternoon, but my wife’s not around and I get distracted so easily. I looked up your Lisa Barrett, interesting, then I found a short talk that gave me some handles to comment on.
So here it is. Smart lady, I can only imagine what she might achieve once she absorbs more of the science of consciousness, again I’d point to Dr. Solms and Dr. Damasio for the bona fides, I can’t produce. Not to mention the education you could achieve.
Happy trails,
Your brain doesn’t detect reality. It creates it. | Lisa Feldman Barrett
Big Think
https://www.youtube.com/watch?v=ikvrwOnay3g
The debate over reality
0:07
- Sometimes people wanna say,
"No, we definitely don’t experience reality the way that it actually is.” And some people wanna say, "Yes, we do.” Philosophers have been arguing about this for like as long as philosophy has existed:
0:22
The question of does your experience match reality,
or are you really experiencing reality in its stark, objective truth?
I don’t accept how this is always presented as some shocking secret,
of course we don’t experience objective truth!
In a world where there are an infinite amount of individual creatures, each being their own center of the world, how can anyone possibly expect, objective reality or ultimate truth?
It’s a fool’s errand.
And the answer is simply: “Not exactly.”
Reality, for us, is what we can sense with our sensory surfaces, and what we can make sense of with the signals in our brain.
0:48
The signals in our brain are as necessary for our experience of reality as the sensory signals that come from the world.
Objective reality
0:57
So, I’m gonna use a metaphor to describe how the brain works.
It goes something like this: Your brain, my brain, everybody’s brain, is trapped in its own dark, silent box called your skull. And the brain has no knowledge of what is going on around it in the world or in the body, right?
Wrong! That is a philosophical supposition.
The biological material reality is that your brain is constantly connected to every millimeter of your body including the sensing organs. Beyond that, your brain is not totally isolated from, nor totally protected from influences of the physical environment, heat, pressure, etc…
There are feedback mechanisms always at work.
1:24
Because it’s in this skull, and it’s receiving sensory signals from the sensory surfaces of your body.
1:33
These signals are the outcomes of some changes in the world or in the body - but the brain doesn’t know what the changes are, it’s receiving the outcomes.
So what? This sounds like a mashup to me.
Is a phone conversation less valid because it came over a wire?
How else could to be?
1:45
And that is what philosophers and scientists call the ‘Reverse inference problem.’
You start with an outcome, and you have to guess at the cause. For example, if you hear a loud bang, it could be a car backfiring, a door slamming, it could be a gunshot. Your brain doesn’t know what the causes are, it only knows the effect, and so, it has to guess.
Then it immediately proceeds to collect more information.
Why not recognize the interactive nature of consciousness?
Shouldn’t that be part of this conversation?
2:15
And the guess is important, right? Because you would do different things if it’s a gunshot
versus if it’s a windy day that slammed a door. And luckily, it has one other source of information, and that is your past experience.
True, but we’re also interacting with life.
Consciousness is that interactive dialogue between ourselves and the world surrounding us.
2:31
The really cool thing about this - if that wasn’t cool enough - is that it’s actually doing it predictively.
2:37
Sometimes scientists talk about this as the brain running a model of the world,
but the brain is not running a model of the world; the brain is running a model of its body, and it’s doing it in this really interesting way.
That’s a very good analogy, but don’t draw the wrong inferences from it.
My question is, what else would we expect a real body, within a physical world, to do?
Here again, is a phone conversation less valid because it came over a wire?
It’s the same dilemma every creature has to learn to deal with - we can only know the world through our senses, which are tailored to our immediate needs.
Human’s are the only species that’s manage to step out of the confines of our body, and we’re barely appreciating it. So sad.
2:51
In psychology, a group of instances which are similar is called a category.
In essence, what your brain is doing, when it’s making a prediction, it’s creating a category of instances from the past which are similar in some way to the present, in order to predict what’s going to happen next, what the brain has to do next, and what your experience will be next.
All that is plenty true, but there’s so much more.
In real life, you sometimes have to react without thinking, when circumstances force action, when your mental experience are wholly inadequate, but we have our body’s reflexes, based on generational experience and awareness.
The thing that’s been evolving for millions of years, takes over and all there’s time for is action.
Quite often under fire, under pressure, people react differently than we think we would. That’s because it’s up to one’s body, not one’s consciousness and the stories we’ve been telling ourselves.
3:16
And so, when a human brain is creating a category, you have to ask, "What features of similarity is it using?” Is it these sensory and motor features?
An apple is round. An apple is hard and crunchy.
Or is it these abstract features; abstract, multimodal summaries of patterns of features.
I could take a bunch of apples and I could say, “Well, these are good for baking, and these are not good for baking.”
And these patterns, this summary, only exists in your brain.
This is incongruous.
Try making a pie with rotten apples.
The patterns are there, and they are telling us something!
‘The summary, of those patterns, that your mind perceives’, is something else altogether.
Not becoming aware of that distinction is another failure, we create Perceptions of reality, not reality. A fine point worth keeping in mind. Another thing to keep in mind is that the underlying reality certainly is there.
Social reality
3:55
Because our brains are structured to construct categories based on the function of things rather than what they look like, or taste like, or smell like, humans can create something called ‘Social reality,’
As in ideas, concepts, Gods, and governments, and greenbacks.
Here’s another place where an explicit recognition of the Human Mindscape ~ Physical Reality divide, really helps clear up the confusion.
“which is where we collectively impose a function on objects that the objects don’t have by virtue of their physical nature.”
The wording of this makes my skin crawl. It’s not wrong, but it is way over expansiveness.
Sure, we can make symbolic objects, but we should not forget most physical objects must be recognized for their physicality, hammer, knife, food, and such physical objects, they ought always to be recognized for their physicality - instead of creating inferences that everything might be as ephemeral as the symbolism and power we can infuse into pieces of paper, or ornamental objects.
Although, yeah, yeah, sure. In the great scheme of things everything is ephemeral, but that’s a different philosophical conversation. This is now, and we are here.
4:19 So, a really good example of this is money-little pieces of paper. We all agree that these little piece of paper have a function of value.
And it turns out that many things that we think of as being part of reality are actually like this. We can draw lines in the sand and create the borders of countries, which creates categories of people called immigrants and citizens.
4:47
We can create governments because we all agree that certain actions like making little tick marks has a meaning to elect someone into a position that has certain powers- it’s a form of social reality.
5:06
In our lab, we work on the hypothesis that many psychological categories are forms of social reality.
No argument so far as it goes.
5:13
We impose a meaning on a scowling face that it did not evolve to have, but because we all agree that it has that meaning or that function in a particular culture, then it does.
Seems to me there are plenty of studies indicating that human smiles, laughter, anger and such are accompanied by strikingly similar gestures. Heck take a look at the way a rich man walks and how a poor man walk, I’ll bet that’s fairly universal.
5:26
To say that your brain resides in a dark, silent box doesn’t mean that you are trapped in that box.
NO! To imply your brain resides in a dark silent box is a denial of our physical evolutionary reality! Your brain is not encased in a black box, it is in constant communication with every millimeter of its body, which is in contact with the outside world.
5:35
Your brain has this wonderful capacity to take bits and pieces of past experience and create something completely new that you’ve never experienced before.
5:49
We call it imagination. That’s a double-edged sword, right? Because our brains are so good at imagining and creating predictions that are not yoked to our immediate surroundings, sometimes we have a lot of trouble staying in the present.
You have to practice your ability to control how much you wanna be constrained by what’s going on outside that box-and how much you wanna be free of it.
If gaining a better understanding of oneself, within this fantastical world that surrounds us, is the goal. This goes off into a counter productive direction because of its blindspots.