How is information stored in the brain?
- Thread starter Olga
- Start date
Pinball1970
Valued Senior Member
Memory - Wikipedia
Хорошая статья. Я не знала, что у растений есть долговременная память.Memory - Wikipedia
en.m.wikipedia.org
У меня есть несколько вопросов.
1. На каком этапе развития у человека появляются нейроны? У зародыша они уже есть?
2. Если память - это нейронные связи, то значит ли это, что с возрастом активность мозга увеличивается, из-за увеличения количества информации, которую мы получаем в течении жизни?
3. Из статьи я поняла, что все события нашей жизни записываются в ДНК. Я поняла правильно?
4. Как выглядят нейронные связи? Это обмен чем?
Pinball1970
Valued Senior Member
This is not a simple subject, you may as well ask how does quantum mechanics work?
A foetus has a brain and CNS, Neurulation occurs after gastrulation.
Human embryonic development - Wikipedia
Pinball1970
Valued Senior Member
"Late in the fourth week, the superior part of the neural tube bends ventrally as the cephalic flexure at the level of the future midbrain—the mesencephalon.[24] Above the mesencephalon is the prosencephalon (future forebrain) and beneath it is the rhombencephalon (future hindbrain).
Cranial neural crest cells migrate to the pharyngeal arches as neural stem cells, where they develop in the process of neurogenesis into neurons."
From the wiki article.
Cranial neural crest cells migrate to the pharyngeal arches as neural stem cells, where they develop in the process of neurogenesis into neurons."
From the wiki article.
Pinball1970
Valued Senior Member
The CNS develops in the womb but obviously continues from birth till the 20s, I don't think you make any new brain cells after that.
The first seven years are crucial.
The first seven years are crucial.
Pinball1970
Valued Senior Member
It's a broad question, a huge amount is known about the brain, memory, neurones, neurotransmitters and memory. It depends how deep you want to go.
sculptor
Valued Senior Member
Current theory holds that babies have many many more neural connections than have adults. As the child learns, the unused neural connections are removed. This process increases rapidly during puberty: So if teenagers seem to be wandering about dazed and confused: it is because they are dazed and confused because the brain which had been used to many more neural connections during the child's life has to do with far fewer connections. It is at this stage that myelin developes and strengthens, making energy transfers faster(if more limited).
Поэтому дети так легко всему обучаются? И поэтому у них так много энергии?
Мне интересно понять как это работает. Нейронные связи - это что такое? Нейроны обмениваются импульсами, или что? По аналогии с квантовой механикой - что выступает в роли переносчика?
Pinball1970
Valued Senior Member
What have you read on this?
Come on a science platform and ask, "what is Christianity??" "what is memory?"
You have at least some text books on this?
Which?
А у вас? Какие?
Pinball1970
Valued Senior Member
Why are you interested in what I have read? I am not the one asking the questions.
А вы сами как думаете: если бы я знала ответы на эти вопросы, я бы их задавала?
Pinball1970
Valued Senior Member
You could read read some pop sci from neuro science guys.
Я как то задавала похожий вопрос на наших форумах, до того, как их закрыли. Никто не знал ответа. То ли биологов не было, то ли они и сами ничего не знали.
sculptor
Valued Senior Member
The brain and body are electro-chemical systems. Roughly---a nerve nucleus sends an electrical signal down a dendrite, the end of which is in close proximity (the space is called the synapse) to an end of an axion of a another nerve cell, the dendrite then sends a chemical messenger to the axion. It is broadly believed that axions receive information and dendrites forward that information. much is known: much more is unknown
DaveC426913
Valued Senior Member
Another non-intuitive aspect of memory storage. Our brain is not analogous to a hard drive; our memories are not saved to a location, and then retrieved, as if finding and loading a file.
Our memories are reconstructed. You do not recall the aroma of popcorn; you re-experience it.
Our memories are reconstructed. You do not recall the aroma of popcorn; you re-experience it.
Но вы же можете вспомнить аромат попкорна и в отсутствие попкорна в данный момент. Тогда что побудило мозг смоделировать запах и образ попкорна?
Клетки мозга при этом травмируются, и это и есть память? Как зарубки на дереве, если по аналогии?