Category Archives: Brain Science

Quora – Have humans bypassed the natural urge to reproduce

Have humans bypassed the natural urge to reproduce genetically? There is a problem in the formulation of the question. Evolution doesn’t have purpose. We don’t have evolved urges to reproduce – that is a human interpretation. What we have, is … Continue reading

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Map of the human brain

Highest-resolution map of the entire human brain created The Allen Institute for Brain Science has published the highest-resolution atlas of the human brain to date There will certainly be some lessons in the influence of ancient structures within the brain … Continue reading

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Alzheimer’s again

Why Does ApoE4 Increase Alzheimer’s Risk? Carrying 1 or 2 copies of a particular gene ApoE4 increases risk of developing Alzheimer’s disease as well as lowering the age of onset, but how does it do it? True enough, need to … Continue reading

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Alzheimer’s

Anti-inflammatory drug reverses memory loss in Alzheimer’s-disease-model mice Agree with Erik – the precise mechanism is important. Woodrow Monte has done a lot of very good science on the dietary model of Alzheimer’s, which works. Mice fed a diet containing … Continue reading

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Ideapod – Consciousness

What is consciousness? An Ideapod survey This is a really complex topic. It seems that consciousness is a loosely defined term that means different things to different people. There is a piece on my blog I wrote about 3 years … Continue reading

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Bird brains

Are you smarter than a macaw? Ounce for ounce, bird brains have significantly more neurons than mammal or primate brains Given that birds fly, giving a very high cost to mass, it is no surprise that there has been strong … Continue reading

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AI – Consciousness

The Problem of AI Consciousness Some things in life cannot be offset by a mere net gain in intelligence. In the article above Susan writes “any failure to be charitable to AI may come back to haunt us, as they … Continue reading

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Inteligence.org – Defining human values for value learners

New paper: “Defining human values for value learners” Any non-trivial system is going to be a set of approximations to cost/benefit over time. What defines costs and benefits can itself be an evolving set, of increasingly more abstract notions (involving … Continue reading

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Estimate of brain capacity increased

Memory capacity of brain is 10 times more than previously thought It seems clear to me that memory is probably far greater than current estimates and it is a difficult and complex thing. I experience episodes of eidetic memory, but … Continue reading

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Do we have free will?

Do we have free will? So many unexamined assumptions in all of this. What is freedom? So many different senses to that word. What might it mean “to act without constraint”? Must one be free from bondage? What about likes … Continue reading

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