Thomas Aquinas: In order to be happy one must be kind.
Thursday, August 23, 2012
What is Your Opinion on These Beliefs?
Thomas Aquinas: In order to be happy one must be kind.
Tuesday, August 21, 2012
Firework Analogy for Sustained Neural Firing
Read the full article that I wrote on this topic here:
http://www.sciencedirect.com/science/article/pii/S0031938416308289
If you found this
interesting, please visit aithought.com. The site delves into my model of
working memory and its application to AI, illustrating how human thought
patterns can be emulated to achieve machine consciousness and
superintelligence. Featuring over 50 detailed figures, the article provides a
visually engaging exploration of how bridging the gap between psychology and
neuroscience can unlock the future of intelligent machines.
Tuesday, May 22, 2012
The Octopus Analogy for Thought
Psychological Aspects
|
Neurological Aspects
|
Octopus Analogy Analog
|
|
Neuron
|
Variable if not negligible
|
A single cell
|
A grain of sand on the cortical
seafloor that the octopus stands on
|
Neural Assembly
|
Element, feature, or fragment of a
construct in long-term memory
|
A cortical minicolumn or a
collection of cells with very similar receptive fields
|
A patch of sand that is currently
in contact with a suction cup on an octopus arm
|
Neural Ensemble
|
A psychologically perceptible
construct of long-term memory that can serve as a feature of a current
thought
|
A collection of coactivated
assemblies that are bound in a Hebbian manner
|
A region of sand that is currently
in contact with a single octopus arm and its suction cups
|
A Thought
|
A composite of several representations
that combine to create mental imagery
|
A set of coactivated ensembles
|
The set of all octopus arms that
are currently in contact with the cortical seafloor
|
Thinking / Consciousness
|
A progression of related imagery
formed through reciprocating transformations between association and sensory
cortex
|
A sequence of related sets of
coactivated ensembles where some remain active over the duration
|
The locomotive behavior or past
and present footsteps of the octopus
|
Unconscious Processes
|
Implicit mental behavior unavailable
to psychological introspection
|
The connectivity responsible for
the selection of assemblies and ensembles
|
The automatic processes
corresponding to the selection of arm placements
|
Read the full article that I wrote on this topic here:
http://www.sciencedirect.com/science/article/pii/S0031938416308289
If you found this
interesting, please also consider visiting aithought.com. The site delves into my model of
working memory and its application to AI, illustrating how human thought
patterns can be emulated to achieve machine consciousness and
superintelligence. Featuring over 50 detailed figures, the article provides a
visually engaging exploration of how bridging the gap between psychology and
neuroscience can unlock the future of intelligent machines.
Friday, April 6, 2012
Oliver Sacks’ Confabulating Butcher
'Oh Mr Thompson!' I exclaim. 'And who do you think I am?'
'Good heavens, the light's bad—I took you for a customer. As if it isn't my old friend Tom Pitkins ... Me and Tom' (he whispers in an aside to the nurse) 'was always going to the races together.'
'Mr Thompson, you are mistaken again.'
'So I am,' he rejoins, not put out for a moment. 'Why would you be wearing a white coat if you were Tom? You're Hymie, the kosher butcher next door. No bloodstains on your coat though. Business bad today? You'll look like a slaughterhouse by the end of the week!'
Feeling a bit swept away myself in this whirlpool of identities, I finger the stethoscope dangling from my neck.
'A stethoscope!' he exploded. 'And you pretending to be Hymie! You mechanics are all starting to fancy yourselves to be doctors, what with your white coats and stethoscopes—as if you need a stethoscope to listen to a car! So, you're my old friend Manners from the Mobil station up the block, come in to get your boloney-and-rye ...'
William Thompson rubbed his hands again, in his salesman-grocer's gesture, and looked for the counter. Not finding it, he looked at me strangely again.
'Where am I?' he said, with a sudden scared look. 'I thought I was in my shop, doctor. My mind must have wandered ... You'll be wanting my shirt off, to sound me as usual?'
'No, not the usual. I'm not your usual doctor.'
'Indeed you're not. I could see that straightaway! You're not my usual chest-thumping doctor. And, by God, you've a beard! You look like Sigmund Freud—have I gone bonkers, round the bend?'
'No, Mr Thompson. Not round the bend. Just a little trouble with your memory—difficulties remembering and recognising people.'
'My memory has been playing me some tricks,' he admitted. 'Sometimes I make mistakes—I take somebody for somebody else ... What'll it be now—Nova or Virginia?'
So it would happen, with variations, every time—with improvisations, always prompt, often funny, sometimes brilliant, and ul¬timately tragic. Mr Thompson would identify me—misidentify, pseudo-identify me—as a dozen different people in the course of five minutes. He would whirl, fluently, from one guess, one hypothesis, one belief, to the next, without any appearance of un¬certainty at any point—he never knew who I was, or what and where he was, an ex-grocer, with severe Korsakov's, in a neurological institution.
He remembered nothing for more than a few seconds. He was continually disoriented. Abysses of amnesia continually opened beneath him, but he would bridge them, nimbly, by fluent confabulations and fictions of all kinds. For him they were not fictions, but how he suddenly saw, or interpreted,the world. Its radical flux and incoherence could not be tolerated, acknowledged, for an instant—there was, instead, this strange, delirious, quasi-coherence, as Mr Thompson, with his ceaseless, unconscious, quick-fire inventions, continually improvised a world around him—an Arabian Nights world, a phantasmagoria, a dream, of ever-changing people, figures, situations—continual, kaleidoscopic mutations and transformations. For Mr Thompson, however, it was not a tissue of ever-changing, evanescent fancies and illusion, but a wholly normal, stable and factual world. So far as he was concerned, there was nothing the matter…
From: The Man Who Mistook His Wife for a Hat. 1970. Touchstone. Chapter 12.
Here are a few of my favorite books by Oliver Sacks:
Friday, February 10, 2012
How Thought Propagates Part 2
1) Sensory imagery is made in early sensory cortex. This is either a product of feedforward sensory information from sense receptors or from downstream retroactivation.
2) Salient features are extracted and communicated with higher association areas
3) Salient features that cohere with already active features in association areas (that are consistent with the present set of concerns) are added to the active features there, whereas the least relevant features in association areas are dropped from activation.
4) The important features of the last few images are maintained active in association areas.
5) The new set of features is handed down to early sensory areas.
6) This new set of features is used by early sensory areas to construct topographic imagery. In reality, sensory cortex from each sense modality feeds their inputs to association cortex (and to each other).
7) The process starts over.
A few months ago I thought to myself that if the association cortex could be protagonized what it has to say to earlier sensory cortex would be along these lines:
Read the full article that I wrote on this topic here:
http://www.sciencedirect.com/science/article/pii/S0031938416308289
If you found this
interesting, please visit aithought.com. The site delves into my model of
working memory and its application to AI, illustrating how human thought
patterns can be emulated to achieve machine consciousness and
superintelligence. Featuring over 50 detailed figures, the article provides a
visually engaging exploration of how bridging the gap between psychology and
neuroscience can unlock the future of intelligent machines.




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