Tag Archives: human brain

November 5, 2015

Four Doors

four doors Last time I introduced four levels of possibility regarding how mind is related to brain. Behind Door #1 is a Holy Grail of AI research, a fully algorithmic implementation of a human mind. Behind Door #4 is an ineffable metaphysical mind no machine can duplicate.

The two doors between lead to physical models that recapitulate the structure of the human brain. Behind Door #3 is the biology of the brain, a model we know creates mind. Behind Door #2 is the network of the brain, which we presume encodes the mind regardless of its physical construction.

This time we’ll look more closely at some distinguishing details.

14 Comments | tags: AI, algorithm, brain, calculator, computationalism, computer model, computer program, consciousness, enchanted loom, human brain, human consciousness, LTP, neural correlates, qualia, self-awareness, slide rule, software model, synapse | posted in Computers

November 3, 2015

Model Minds

By Wyrd Smythe

mind model Last week we took a look at a simple computer software model of a human brain. (We discovered that it was big, requiring dozens of petabytes!) One goal of such models is replicating consciousness — a human mind. That can involve creating a (potentially superior) new mind or uploading an existing human mind (a very different goal).

Now that we’ve explored the basics of calculation, code (software), computers, and (computer software) models, we’re ready to explore what’s involved in attempting to model a (human) mind.

I’m dividing the possibilities into four basic levels.

18 Comments | tags: AI, algorithm, brain, computationalism, computer model, computer program, consciousness, enchanted loom, human brain, human consciousness, human mind, Isaac Asimov, mind, physicalism, positronic brain, qualia, René Descartes | posted in Computers

October 30, 2015

The Human Connectome

By Wyrd Smythe

brain connectome Last time we looked at the basic requirements for a software model of a computer and put a rough estimate on the size of such a model (about 2.5 terabytes). This time we’ll consider a software model of a human brain. Admittedly, there’s much we don’t know, and probably need for a decent model, but we can make some rough guesses as a reference point.

We’ll start with a few basic facts — number of neurons, number of synapses — and try to figure out some minimal requirements. The architecture of a viable software brain model is likely to be much more complicated. This is just a sketch, a Tinkertoy® or LEGO® version.

Even so, we’re gonna need a lot of memory!

10 Comments | tags: axon, computer model, dendrite, human brain, human connectome, human consciousness, human mind, long-term potentiation, LTP, neuron, petabyte, synapse, terabyte | posted in Computers

July 4, 2011

Hello world!

By Wyrd Smythe

“In the beginning was the Word, and the Word was…”

Many of you will recognize that as the first words of John 1:1 in the Christian New Testament Bible. There’s also a cross-reference to the very first words of that Bible (Old Testament in this case), “In the beginning God created the heavens and the earth.”

This is about words and about beginnings.

Others might recognize it as a conflation of the lead-in to a Moody Blues tune, OM, from In Search of the Lost Chord, and the title of a song from another album, In the Beginning, from On the Threshold of a Dream.

(Yes “album.” I’m old!)

23 Comments | tags: brain, brain mind problem, computationalism, computer guy, human brain, human mind, logos, Marriage, Moody Blues, rational mind, René Descartes, Theory of Consciousness, theory of mind | posted in Baseball, Basics, Books, Computers, Life, Movies, Opinion, Philosophy, Politics, Rant, Science, Society, The Interweb, TV