neuroclusterbrain
Banned
- Joined
- Nov 20, 2013
- Messages
- 148
"Then we can replace the second original natural neuron by artificial neuron, then we can replace the third neuron, the fourth neuron, and so on – even when all neurons in the brain will be replaced by artificial neurons – the “I” will remain unchanged"
demonstrably doubtful. When neuron dies and if they are replaced the original neuron connection to the network is gone. The new one would build new connection. What you are describing , replacing the neuron with an artificial one with the same connection, is a nice gedanken experiment, but approximately as worth as the teleportation one : you start with a premise which match what you think will happen. Change the premise and the conclusion differs.
The "I" is defined by the combination at the same point in time of the hardware (neuron network) and the state of those neuron network. There is no such a thing as an I separate from the full network - there is no software. Remove 1 neuron and it is a different I , either in an imperceptible manner or in a big one. But still a different I.
While Aepervius was writing this message Aepervius has lost tenths or hundreds of neurons inside his own brain – the neurons naturally die in your brain every minute, which means that according to the logic of Aepervius , the “I” of Aepervius has become different after he wrote his message. That is correct – the “I” of Aepervius is changing every minute, however the underlying nature of “I” remains the same – “I” is still the software. Yes, indeed this software is slightly changing every minute, however the underlying nature of “I” remains the same – it is still the software.
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https://answers.yahoo.com/question/index?qid=20090526223555AAwfI3j
How many neurons does the average human lose in a day?
Also, if it depends on the age-group, is there a chart online that I could look at to see the rate of losing nuerons plotted on the Y coordinate and the human's age plotted on the X coordinate?
Best Answer:
It is said that about 80,000-100,000 neurons die each day, to be replaced by new, migrating neurons made by the hippocampus, which is in the limbic parts of the brain, according to new researches.
Of course, with Alzheimer's Disease, Parkinson's Disease, and Dementia, the loss of neurons becomes significant, even reaching up to 400,000-800,000 per day.
During the fetal period up to birth, about one-third to two-third of all neurons made during the embryonic period dies as it migrates and differentiates - by the age of twenty, a person will have lost 1/3 of what is left after the massive neuronal deaths during birth.
Source(s):
Neuroscientist
You lose thousands of neurons a day (I think estimated is 50-80,000), and lose substantial amount of cortex in age-related dementias like Alzheimer's and FTD. However, some prunining which occurs during early infancy has a positive side as it is essential for maturation.
(the comment about neurogenesis in the hippocampus is partially true, however the migration is minuscule, as those neurons remain in the hippocampus) You can also get new neurons in the olfactory bulb, while much is not known why it happens.
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Religious adepts are strongly convinced that during a lifetime the immortal soul/spirit collects “spiritual experience” and “develops/enhances spirituality” – at the first glance such claim looks correct, as for example, let’s take a kindergartener and an adult – in this case an adult is “much more experienced and much more spiritually developed” than a kindergartener. However this theory of “spiritual development during a lifetime” has one fundamental fault which religious adepts fail to notice, the fundamental bug of this theory is the following – when a man reaches old-age then all his mental-spiritual abilities begin to deteriorate, majority of pensioners get dementia which becomes stronger and stronger with every year – these old men lose their memories, forget their own names, etc. Only in rare exceptional cases old-man retains fully functioning vivid clear mind while the majority of old men get dementia and prayers to God and/or strict observance of religious regulations does not save them from old-age dementia.
The real world fact of old-age men getting dementia disproves the beliefs of religious adepts who claim that during lifetime human soul/spirit collects “spiritual experience” and “develops/enhances spirituality”. Even if we will make an assumption that human soul/spirit does collect “spiritual experience” then this period happens only from childhood to adulthood, however later human soul/spirit starts to lose all his “accumulated spiritual experience” – you can easily verify that by visiting any retirement home (a.k.a. old people's home) which houses many old-age people.
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http://www.ncbi.nlm.nih.gov/pubmed/24171622
Meeting the religious needs of residents with dementia.
Higgins P.
Abstract
This article considers practical strategies to help nurses working in care homes meet the religious needs of people with dementia, including attending services in homes or churches, supporting them in private prayer and at the end of life. It also considers the characteristics of person-centred care for such residents and how the Mental Capacity Act 2005 may be called on to support religious needs as dementia advances. To achieve good practice in all these aspects, staff in care homes should work in partnership with local faith communities and ensure they are aware of residents' life histories and preferences, including their faith practices. The focus of the article is on meeting the needs of Christian residents. For residents from other faith groups living in care homes not affiliated to their faith, the same general approach to meeting religious needs could be adopted as a starting point.
Nurs Older People. 2013 Nov;25(9):25-9. doi: 10.7748/nop2013.11.25.9.25.e501.
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https://books.google.com/books?id=s...al+illness#v=onepage&q=Mental illness&f=false
Mental illness has also deeply touched my own life. Several years ago, my mother died after a long battle with Alzheimer’s disease. It was heartbreaking to see her gradually lose her memories of her loved ones, to gaze into her eyes and realize that she did not know who I was. I could see the glimmer of humanity slowly being extinguished. She had spent a lifetime struggling to raise a family, and instead of enjoying her golden years, she was robbed of all the memories she held dear.
Michio Kaku. The Future of the Mind. The Scientific Quest to Understand, Enhance, and Empower the Mind-Doubleday. 2014
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And this leads to a simple conclusion – if you believe that you will take your “accumulated spiritual experience” into post-mortal world then you should kill yourself while you are in the peak of “accumulated spiritual experience” – if you will not do that then senility will wipe out your “accumulated spiritual experience” just like the piece of ice melts under the hot sun, and into post-mortal world you will take only pity leftovers of your “accumulated spiritual experience”. One of the main reasons why people want to have children is the expectation that your children will take care of you in your elderly years. Actually, there is no guarantee that your children will take care of you in your elderly years, as for example your children may die or become invalids earlier than you, however that is not the main point. Let’s take “the best case scenario” and let’s assume that your children will take care of you in your elderly years – in that case your children will sustain you being alive longer which will result in you reaching deeper stages of dementia and losing even more of your “accumulated spiritual experience” when compared to scenario in which you had died earlier still having larger amount of “accumulated spiritual experience”. Just think for a moment – what kind of “spiritual experience” the old-man will take into post-mortal world when he is completely lost in time and space, when he does not remember his own name, etc.
Religious adepts are convinced that after the death of their physical bodies their soul/spirit will travel into the paradise/hell or will reincarnate into some other living creature/being. Let’s analyze both scenarios.
According to religious dogmas all these old-age doddering dementia-ill adepts who go to Church every weekend – all these dementia-ill adepts will get into the paradise after the death of their physical bodies. Which means that if you will get into the paradise too then you will find yourself surrounded by myriads of these dementia-ill souls who are completely lost in time and space, who do not remember their own names, etc – according to religious dogmas all these dementia-ill souls will be gathered into the paradise because they had observed religious orders during their earthly life – which raises a simple question: do you really want spend your eternity completely surrounded by these myriads of dementia-ill souls inhabiting the paradise, is it really your most desired goal?
Now let’s analyze another scenario – the reincarnation of your soul/spirit into some other living creature/being. You have had very hard time trying to accumulate “spiritual experience” during your earthly lifetime, and then in old age you become dementia-ill and lose all your accumulated “spiritual experience” and as a result you reincarnate into the cockroach. In your new cockroach-life you have no idea for what kind of “bad karma” you were punished to become a cockroach, because according to dogmatism of reincarnation the soul/spirit has no remembrance whatsoever from the previous life. So this cockroach has no idea whatsoever what sin/error he needs to repair from previous life, because the cockroach knows nothing about his previous human-incarnation. In the new reincarnation as the cockroach you again try to accumulate “spiritual experience”, then cockroach gets old age, becomes dementia-ill, loses all his accumulated “spiritual experience”, and after the death reincarnates into the amoeba. And the process is repeated again and again the infinite number of times... a really meaningless scenario of existence, isn’t it?
Bellow is the simple thought experiment which disproves the claim of religious adepts that during a lifetime the immortal soul/spirit collects “spiritual experience” and “develops/enhances spirituality”.
Let’s raise a simple technical question: is the soul/spirit a 1) divisible object, or 2) indivisible object? In other words, can the soul/spirit be divided into the composing parts or not?
Here we have two scenarios:
1) If the soul/spirit is divisible object then the soul/spirit is not immortal because it can be destroyed by dividing it into the composing parts.
2) If the soul/spirit is indivisible object then it cannot collect “spiritual experience” because in order to able to save the information about the “collected experience” you need to have the ability to change the states/positions of the composing parts of that object. By definition the indivisible object cannot store information about its previous experience.
In both scenarios the religious dogmas are crushed. If the soul/spirit is able to collect “spiritual experience” then this means that the soul/spirit must be composed of composing parts which means that such soul/spirit is not immortal – it can be destroyed by dividing it into the composing parts. And if the soul is immortal then it must be indivisible which means such soul/spirit cannot collect “spiritual experience” during the lifetime which means that all religious rituals/practices which supposedly collect “good spiritual experience” – all these religious rituals/practices are meaningless.
Two dogmas – 1) the immortality of the soul/spirit and 2) the collection of “spiritual experience” during the lifetime – are two dogmas which contradict each other – if one dogma is true then another dogma is automatically false, they cannot be both true simultaneously.