Comment author: BiasedBayes 13 October 2016 11:45:12AM 0 points [-]

Morality binds and blinds. People derive moral claims from emotional and intuitive notions. It can feel good and moral to do amoral things. Objective morality has to be tied to evidence what really is human wellbeing; not to moral intuitions that are adaptions to the benefit of ones ingroup; or post hoc thought experiments about knowledge.

Comment author: BiasedBayes 16 September 2016 04:10:11PM *  1 point [-]

Thanks for the post, I really liked the article overall. Nice general summary of the ideas. I agree with torekp. I also think that the term consciousness is too broad. Wanting to have a theory of consciousness is like wanting to have a "theory of disease". The overall term is too general and "consciousness" can mean many different things. This dilutes the conversation. We need to sharpen our semantic markers and not to rely on intuitive or prescientific ideas.Terms that do not "carve nature well at its joints" will lead our inquiry astray from the beginning.

When talking about consciousness one can mean for example:

-vigilance/wakefulness

-attention: focusing mental resources on specific information

-primary consciousness: having any form of subjective experience

-conscious access: how the attended information reaches awareness and becomes reportable to others

-phenomenal awareness/qualia

-sense of self/I

Neuroscience is needed to determine if our concepts are accurate (enough) in the first place. It can be that the "easy problem" is hard and the "hard problem" seems hard only because it engages ill posed intuitions.

Comment author: pseudobison 28 May 2016 06:10:32AM *  1 point [-]

Networks of the Brain by Olaf Sporns certainly doesn't cover all of computational neuroscience, but is a good accessible introduction to using the tools of network theory to gain a better understanding of brain function at many different levels.

Comment author: BiasedBayes 04 June 2016 02:01:52PM 1 point [-]

I have been reading Memory and the Computational Brain: Why Cognitive Science will Transform Neuroscience by Gallistel and King.After that I will read Olaf Sporns book you recommended.

Just actually listened Brainscience podcast where Olaf spoke about his work.Thanks a lot!

Comment author: ZeitPolizei 30 April 2016 04:02:52AM *  1 point [-]

From the cover text of How to Build a Brain it seems the main focus is on the architecture of SPAWN, and I suspect it does not actually give a proper introduction to other areas of computational neuroscience. That said, I wouldn't be surprised if it is the most enjoyable book to read on the topic, that you can find. I have read Computational Neuroscience by Hanspeter Mallot, which is very short, weird and not very good. I'm currently about halfway through Theoretical Neuroscience by Dayan and Abbott. My impression is, it might be decent for people with a strong physics/math background, it's OK if you have some prior knowledge about the topics (e.g. having visited a lecture) and rather bad otherwise.

Edit: My prof told me about Information Theory, Inference and Learning Algorithms (legal free online version), which is, as the title implies more about information theory and learning algorithms (so more mathy), but from the perspective of neuroscience, so it's missing a lot of the typical topics of computational neuroscience. I have just started reading it, but so far it seems really well written (4.35 rating on goodreads), and it also contains exercises and reflection questions.

Comment author: BiasedBayes 30 April 2016 09:01:58AM 1 point [-]

Thanks for the info :) Yes, thats true. I ordered Theoretical Neuroscience couple of days ago together with Mathematics for Neuroscientists by Gabbiani and Cox. No one teaches computational neuroscience in our university, so i have to try to learn this field by myself.

Comment author: BiasedBayes 29 April 2016 04:19:57PM 0 points [-]

Found this free online course if someone else is interested: https://www.coursera.org/course/compneuro

Comment author: Strangeattractor 27 April 2016 06:43:30AM 2 points [-]

How to build a brain by Chris Eliasmith is one possibility.

Comment author: BiasedBayes 27 April 2016 06:27:17PM 1 point [-]

Awesome! Judging by the first 30 pages this is gold. Very nice, thanks a lot!

Comment author: hofmannsthal 27 April 2016 07:18:14AM 2 points [-]

Not particularly math-y, but people around me loved "how the mind works" from Steven Pinker.

Comment author: BiasedBayes 27 April 2016 06:26:24PM 0 points [-]

I love that book too! I have read it once and listened it once.

Suggest best book as an introduction to computational neuroscience

2 BiasedBayes 26 April 2016 09:16PM

Im trying to find a best place to start learning the field. I have no special math background. Im very eager to learn. Thanks alot!

 

Comment author: Anders_H 24 January 2016 07:34:21PM *  -1 points [-]

So thinking probabilities existing as "things itself" taken to the extreme could lead one to the conclusion that one cant say much for example about single-case probabilities.

Thinking probabilities can exists in the territory leads to no such conclusion. Thinking probabilities exist only in the territory may lead to such a conclusion, but that is a strawman of the points that are being made.

It would be insane to deny that frequencies exist, or that they can be represented by a formal system derived from the Kolmogorov (or Cox) axioms.

It would also be insane to deny that beliefs exist, or that they can be represented by a formal system derived from the Kolmogorov (or Cox) axioms.

I think this confusion would all go away if people stopped worrying about the semantic meaning of the word "probability" and just specified whether they are talking about frequency or belief. It puzzles me when people insist that the formal system can only be isomorphic to one thing, and it is truly bizarre when they take sides in a holy war over which of those things it "really" represents. A rational decision maker genuinely needs both the concept of frequency and the concept of belief.

For instance, an agent may need to reason about the proportion (frequency) P of Everett branches in which he survives if he makes a decision, and also about how certain he is about his estimate of that probability. Let's say his beliefs about the probability P follow a beta distribution, or any other distribution bounded by 0 and 1. In order to make a decision, he may do something like calculate a new probability Q, which is the expected value of P under his prior. You can interpret Q as the agent's beliefs about the probability of dying, but it also has elements of frequency.

You can make the untestable claim that all Everett branches have the same outcome, and therefore that Q is determined exclusively by your uncertainty about whether you will live or die in all Everett branches. This would be Bayesian fundamentalism. You can also go to the other extreme and argue that Q is determined exclusively by P, and that there is no reason to consider uncertainty. That would be Frequentist fundamentalism. However, there is a spectrum between the two and there is no reason we should only allow the two edge cases to be possible positions. The truth is almost certainly somewhere in between.

Comment author: BiasedBayes 24 January 2016 08:24:25PM 1 point [-]

Thinking "probability exists only in the territory" is exactly taking the idea that probabilities exists as "things itself" to the extreme as i wrote. This view is not a strawman of dogmatic frequentists position, as you can see from the John Venn quote.

I feel the need to point that i have tried to describe the context of the debate where the heuristic: "uncertainty exists in the map, not in the territory" was given in the first place. This whole historical debate started from the idea that probability as a degree of belief does not mean anything. This was the start. "Fallacious rubbish", as Fisher puts it.

I have tried to show that one can have this very extreme position even if there exists only epistemic uncertainty. One can answer to this position by describing how in some situations the uncertainty exists in the map, not in the territory. This is the context where that general heuristic is used and the background that it should be judged against.

"A rational decision maker genuinely needs both the concept of frequency and the concept of belief." Amen!

Comment author: TheAncientGeek 24 January 2016 09:10:14AM 0 points [-]

Such as?

Comment author: BiasedBayes 24 January 2016 06:20:30PM 0 points [-]

Generally if you approach probability as an extension of logic, probability is always relative to some evidence. Hardcore frequency dogmatists like John Venn for example thought that this is completely wrong: "the probability of an event is no more relative to something else than the area of a field is relative to something else."

So thinking probabilities existing as "things itself" taken to the extreme could lead one to the conclusion that one cant say much for example about single-case probabilities. Lets say I take HIV-test and it comes back positive. You dont find it weird to say that it is not OK to judge probabilities of me having the HIV based on that evidence?

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