Talk:Brain
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In order to facilitate discussion towards improving this article I have archived all discussions prior to 2005 here.
[edit] Please help to figure out license type for the image "Comparative brain sizes".
I removed the above instruction from the article face. Please do not place such text in articles. You may place such requests on Talk pages. The article space is governed by policies and guidelines, including WP:MOS, that prohibit such edits. Thanks. encephalon 08:07, 16 November 2005 (UTC)
[edit] Will and directed brainwork
It's will that controlls us. Everything you do (think, eat, move) you want it.
1. Humans have ability to direct all one's brainwork (thoughts, feelings, wills) to another one. That means you can make another soul to feel what you do, feel, think. He will feel his own and sender life at same time.
2. You can use your muscles with will what controlls them. You can controll some another human body(muscles) with your own will. That means you can make another soul to do(think) what you want (to want what you want). His muscles will do what both of you want. You can think to another one, who will feel his own and the sender's thoughts at same time.
You must want it. That's life. Joakim 21:17, 17 December 2005 (UTC)
- You're talking about the cognitive mind which arises out of brain function. --Oldak Quill 22:45, 11 January 2006 (UTC)
[edit] brainPOP @ my brain
by michael simpson The brain is the supervisory center of the nervous system in all vertebrates. It also serves as the site of emotions, memory, self-awareness, and thought. Hippocrates considered the brain to be the seat of thought, while Aristotle believed it to be a cooling system for the blood. The brain stem is the lower part of the brain, adjoining and structurally continuous with the spinal cord. The upper segment of the human brain stem, the pons, contains nerve fibers that connect the two halves of the cerebellum. It is vital in coordinating movements involving right and left sides of the body.
- Mkay....Link9er 14:03, 24 January 2006 (UTC)
[edit] Article re-write and restructure
I saw that this article came up for review as a FAC. I still think it needs an overwhelming amount of work. Fortunately many of the subsections are very good so, although the task seems daunting, I am proposing the following "roadmap" towards improving the article:
Phase 1: Fact checking - there is a lot of unsourced information in the article. Much of it is very basic and should be covered by referring to a basic textbook. Other is quite esoteric. We can start doing this bit by bit and along the way.
Phase 2: Designing a better organizational scheme - the article is very disjointed and out of order. We need to decide on a better scheme (we can discuss these here) and do a major rearranging.
Phase 3: Removal of extraneous information: There is a lot of information here that does not belong in a basic article on the brain, a lot could be incorporated into other articles and especially that long list of regions could be sent to its own article.
Phase 4: Addition of helpful diagrams: We can find some on the net or we can draw our own like we did in the cerebellum article.
Phase 5: Proofreading: Making sure the prose is clear, technical terms are explained, logic is consistent, etc. We could recruit some editors that have provided lots of help with proofreading science articles such as Tony to help out.
OK, I know this is a lot of work, but now we know where to start. Any comments? Nrets 21:57, 29 December 2005 (UTC)
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- I've cleaned up and simplified the brain regions list, linking to the List_of_regions_in_the_human_brain article. That article needs quite a bit of work as well, unfortunately... Semiconscious (talk · home) 23:06, 29 December 2005 (UTC)
- I have re-structured the article to fit a better organizational scheme. I also removed some extraneous and redundant info. It would be useful to get input from other editors in terms of any general sections that are missing from the article.There is still random bits and pieces that seem out of place and maybe should be removed, but it would also help to have other editors look at this. Nrets 20:53, 7 January 2006 (UTC)
[edit] Internal links
Whitecat: Before you begin removing wikilinks from articles I think you should read my reply on Talk:Human_brain, as well as the Wikipedia:Manual of Style (links) you linked to. Notably the following: On the other hand, do not make too many links. An article may be considered overlinked if any of the following is true:
- more than 10% of the words are contained in links;
- it has more links than lines;
- a link is repeated in the same article (although there may be case for duplicating an important link that is distant from the previous occurrence);
- more than 10% of the links are to articles that don't exist; or
- low added-value items are linked without reason, e.g., 1995, 1980s and 20th century.
The links are not abnormal, and I see no reason for you to have removed links to tribe and film on the brain article. Both of those are interesting internal links for people to follow. Semiconscious • talk 06:54, 27 January 2006 (UTC)
- See [1] at Talk:Human_brain WhiteCat 15:15, 27 January 2006 (UTC)
[edit] Humans the most inteligent???
Hollyyyyyyyy shit!!! I have never seen a picture of the elephant's and the dolphin's brains before i knew that they were big but this. Look at the amount of gyri they have - more than our own brain does. These animals have got to be smarter than us in so many aspects. -- Boris 19:55, 27 January 2006 (UTC)
- Whale brains are insanely large... But yeah, I never noticed now many gyri and sulci the dolphin and elephant brains have. Crazy. Semiconscious • talk 20:11, 27 January 2006 (UTC)
[edit] CJD, kuru and brain eating; references
There's a statement in this article:
Brain consumption can also result in contracting fatal transmissible spongiform encephalopathies such as Creutzfeldt-Jakob disease and other prion diseases in humans
which has a reference attached to it. Unfortunately, the references in this article are badly maimed. I would like to see such a reference; while the causal connection between brain eating in humans and the disease 'kuru' has been well documented (as stated in the following pa How did the brain get it's name? Where is the place ment of the brain? what is the of the brain?
[edit] Picture of FMRI
I would like to add a picture of an FMRI scan in the subsection "FMRI and BOLD" - would this be ok?
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- Yes, be BOLD with your edits! (make sure the picture is not copyrighted and you assign it the correct license tag). Nrets 01:50, 19 December 2006 (UTC)
[edit] "New Church Teaching"
Surely this is vague philosophising about the brain, not Study of the Brain.1Z 18:23, 16 January 2007 (UTC)
[edit] Contradiction
In mammals, the brain is surrounded by connective tissues called the meninges...
contrast with
The brain is bathed in cerebrospinal fluid (CSF), which circulates between layers of the meninges...
If the brain is surrounded by a cavity which contains CSF, it is not directly bathed in CSF. The article needs to make up its mind. I would suggest the former terminology, since it has the advantage of being consistent with fact. Not that Wikipedia tends to predicate information on such a basis as that.
The interstitial fluid in which the brain is bathed is not the same as cerebrospinal fluid. If it were, the blood-brain barrier and the blood-CSF barrier would be the same thing. They are not. --76.209.59.227 22:02, 25 January 2007 (UTC)
[edit] Energy costs
A vertebrate brain about the same size in a cold blooded animal and in a warm blooded animal will demand around the same amount of energy. Which is why big brained animals is almost only seen in warm blooded animal. From http://findarticles.com/p/articles/mi_m1134/is_10_108/ai_58360823/pg_3 :
"Fish, after all, are cold-blooded animals, with "low-cost" bodies in terms of energy use. Because they do not produce much heat, cold-blooded vertebrates have a metabolic rate only 10 to 20 percent that of warm-blooded vertebrates at the same body temperature. Yet their brains need about the same amount of energy, because both warm-blooded and cold-blooded brains function in essentially the same way on a cellular level (cold-blooded and warm-blooded brains consume nearly the same amount of energy).
The bigger an animal gets, the more expensive having a large brain becomes. For a 1,000-fold increase in body mass, the rate of whole-body energy consumption rises only about 100 times. But a 1,000-fold increase in brain mass results in a 500-fold increase in total brain energy consumption. In general, then, relative to body size, big animals have small brains.
A cold-blooded human-sized vertebrate, such as a 150-pound alligator, has a whole-body oxygen consumption rate of approximately half a liter of oxygen per hour at 68c E But a human-sized (3-pound) brain in a cold-blooded animal would itself consume approximately a liter of oxygen per hour at the same temperature. Thus, an alligator with a human-sized brain would have to find three times more food than an alligator with a typical brain size of 0.3 ounce would. It's not surprising, therefore, that large cold-blooded vertebrates with big brains do not exist.
The rule among vertebrates--that 2 to 8 percent of the energy used by the organism is consumed by the brain--holds for all warm-blooded species (mammals and birds) as well as cold-blooded species (fishes, amphibians, and reptiles). Because the bodies of warm-blooded species consume about ten times more energy, they can afford to have brains that are approximately ten times bigger than those of cold-blooded vertebrates (with the elephant-nose fish a rare exception)."
Something that could fit in the article maybe? Rhynchosaur 23:35, 8 February 2007 (UTC)
[edit] Brain in animals
Not all animals have brains (See also: supraesophageal ganglion and Sponge). We should address the first sentence of this article. -- Selket Talk 19:22, 21 March 2007 (UTC)
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