/sci/ - Science & Math

if someone had the memory centre of their brain removed, would they feel bad from experiencing pain?

>>5772491
The Chinese Room is a crappy argument. Study about deep belief networks.
The brain is an extreme general equation solver with a hundred trillion of adjustable non-linear variables. Every synapse is adjusted according to a complex, albeit not undecipherable, algorithm integrating many areas of the brain and ultimately motivated to act upon multiple brain reward areas.
This trillions of variable equation is so complex to human verbal reasoning we can call it the soul. But it is an equation.
Of course the complexity is increased by all the biological elements hard to model with straightforward math. This adds to its mystique. But calling it something outside of matter is not based on factual knowledge we possess nowadays.
PS. I am completely materialistic about the origins of human mind. But I am very spiritual on the origin of matter itself. So it don't stops me believing that the death of body is the last thing that human mind will experience. There can be an afterlife if a powerful enough being wishes.

"The Idea that you can somehow boil mind, the spirit, down to brain activity is just deepily repugnant to many people. People want their minds to be BEYOND all measure. People want to believe that there is more and more and more in their minds that any science can ever tell them"
Daniel Dennet
http://www.youtube.com/watch?v=41orN2hT8X4

>>5577182
Random weight on a neuron represent a particular nonlinear model on the inputs.
Tuning them is purposefully making that combination approach the desired answer.
Nothing brute force about it.
You are just exploring the infinetely multidimensional space of all possible algorithms giving limited computational resources.
If you can start from the most basic examples and build from there you can train your neurons to reach more complex algorithms sooner than just starting with the already complex problems. Thats what learning piano does. It builds complexity. And neuron networks have that ability too, its just frequently ignored by people working on them.

>>4764649
Consciousness is the working of the extremely complex neural network of the brain. It is governed by the billion dimesion nonlinear energy model the neural network does of reality, by adjusting its connections according to Contrastive Divergence and maybe backpropagation.

http://www.scholarpedia.org/article/Boltzmann_Machine

The picture didnt load

where can I download MCNP5 code, It is for science.

Quantum events at the atomic level are only observed under certain circumstances and were only observed for the first time under very tight ones. Circumstances in which the brain is not included. The brain is warm, wet, and totally not conducting (inb4 axons hur hur comedy).

There is <span class="math">\it{no}[/spoiler] room for coherence in the brain.

Also, the Bohr-Oppenheimer approximation tells us that quantum events only become prevalent with electrons, and biology does not make extensive use of electron transport.

No, synapses are not electrical. Those are calcium ions and that kinda shit spilling it, that and the sub-threshold neurotransmitters that don't go through synapses.

I won't read this thread because it will be full of awful opinions like >>3746744

We have uploaded a nematode: http://www.csi.uoregon.edu/projects/celegans/

We have grown mice cortical columns using genetic profiles:

This isn't the same as scanning the neurons from a serial section, but that's hard enough to do. Each layer is like 70 nm thick and you have to scan multi-micron-tall structures. It takes time to laminate a mouse.

http://www.youtube.com/watch?v=_rPH1Abuu9M&feature=related
http://www.youtube.com/watch?v=wDY4cFJauls&feature=related
http://www.youtube.com/watch?v=h06lgyES6Oc&feature=related

http://www.philosophy.ox.ac.uk/__data/assets/pdf_file/0019/3853/brain-emulation-roadmap-report.pdf

My thought is that the singularity will have a human-like intellectual development. In 2025-30 when human brain power costs about 1mil, many research groups will try it.
But those AIs will be very uneven and maybe the whole software will be messed up. The AI will learn at a human rate the first year IF they get the software right. Thousands upon thousands of scientific discussions will sprout and the knowledge will be public, at least most parts.
The next 4 years while they discuss the software the hardware costs will drop to 250,000 and the number of people involved will surely escalate to tens of thousands.
When someone gets the software right the AI will have to learn speech and basic spatial reasoning, that takes children about a year and a half to five years, so the AI at that level (4x-8x human level hardware) would take 2 to 12 months.
This timeframe shows it will be feasible for other research groups to master the knowledge and copy it. Not to mention spying corporations and nations.
So no, it won't be accessible to the rich only.
There will be poor for sure and the difference will widen.
But social mobility will increase 1000x by the year 2100. So many, many millions of very poor people will raise to the status of megagenius space cyborgs.

http://en.wikipedia.org/wiki/Social_mobility#Absolute_and_Relative_Mobility

>>3603861

EVERYONE

Wrong pic related. This is the right one.

Cortical column of a partially uploaded mouse.

>>3582739

Exactly. And what happens when you keep the mind and leave the genes entirely? (Whole Brain Emulation)