Brain Definition and 740 Threads

When I was younger, I had a test taken where I had to lie down on my back and have this thing placed on my head (there were tubes or wires or something on it) and told to stay still for about 20 minutes. I would close my eyes and I would be racing through (at seemingly high speeds) a bunch of...

http://en.wikipedia.org/wiki/Binaural_beats Apparently, these entertain your brain waves to a certain frequency. According to some people, there are various health benefits caused by listening to binaural beats, including increased creativity and relaxation. Companies such as I-Doser sell...

Can anyone sense a way to solve this. It would be great help to see your reasoning behind your assumptions. As a result of the credit crisis there are many asymetries in the loan market as a reult this set of question have arisen: Information - take this as true There are two types of...

Homework Statement Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.750 m at the rate of 10.0 rev/s. If he increased the length to 1.050 m, he could revolve the sling only 8.00 times per second. What is...

Homework Statement This is to find the arc length of r= \theta from 0 < \theta < 2pi I ended up with \int\sqrt{\theta^2 + 1} Homework Equations \int\sqrt{\theta^2 + 1} The Attempt at a Solution I couldn't see a relevant way to do integration by parts so I went with trig...

Let's assume tissue rejection is not an issue. What would happen if you were able to connect neurons from another person's brain to neurons in your own so that they could send and receive signals? What if it was one neuron? 100? 10,000? 1 million? What would that feel like? At what point would...

Wtf do these guys want? http://www.nytimes.com/2008/01/15/science/15brain.html?_r=2&8dpc&oref=slogin&oref=slogin

I just saw a fascinating show on PBS, talking about how the brain can improve itself through a process called neuroplasticity. The program was aired during pledge week, but I am curious if this is an actual principle that most scientists agree on?

I'm just wondering about this, because when I drink coffee, sometimes I feel like I can't focus. Is it possible that drinking coffee will limit my ability to grasp mathematical concepts? What is recommended for helping me to get focused? I guess exercise is good, and maybe antioxidents...

What if the speed of your brain impulses was reduced by half artificially? What would the perceived difference be? What if it was reduced to 10% of current speed? What about .001%? I think time would seem to be flowing faster for you since you are "checking in" less often, like in time...

Hello, I don't know a lot on this subject, but at a last nights weekly philosophical discussion a friend mentioned that they could use MRI machines to scan and see electrical impulses light up parts of the mind during electrical impulse testing to the brain. I guess like showing images to...

Problem Statement: Assume that there are n items (numbered from 1 to n) in an urn. We select b items from the urn and record their numbers. We return the selected b items into the urn and perform another selection. We do in total m such selections. At the end of the m selections we...

What if you have 10 foot neurons made of wood with mechanical clockwork innards, and they shoot different types of metal balls to each other to send messages. What if they have some mechanical method for reproducing every other function of a neuron? What if they are arranged in exactly the same...

this is supposed to be visual test on if you are mainly left brained or right brained, it a woman spinning around a point, and if you see it spinning clockwise, you are right brain, if you see it anticlockwise, you are left brained. It nearly always goes right for me. I'm not sure how accurate...

The players here are Tyler, Craig, Ray, Sean and Elijah. Their positions are fullback, quaterback, center, guard, and tackle. What is the name and number of the quaterback? Elijah is not a tackle. Craig is on one end of the line. Ray is not #4 or #8. The guard is #8. Tyler is not the...

Here is my brain teaser I am stuck on...Only one of the cheerleaders at Ashland High has brought a pet to the game. The pets that aren't here are a tarantula, a llama, an iguana, and a pig. THe cheerleaders' names are Tori, Tom, Tad, Tish and Tara. THeir ages are 14, 15, 16, 17 and 18. Which...

I so happen to like visual brain teasers. There's a lack, not to say a total absence, of these on this forum and I thought it'd be a good idea to start this thread so to undo the injustice. I was thinking maybe we could have some mods readily check this thread to validate image postings. That...

This is an extremely easy concept that for some reason is destroying my life right now. It just came up in a physics problem that I posted elsewhere. I have a cube of side length .6m So the area of one side is (.6)^2= .36m^2 This does not agree with me. If it were of side length 6...

I am aware that establishment opinion is that a persons mind forms as as a consequence of the brain. But i was wondering how do we know that for sure? could it be possible that the mind actually gives rise to the brain? as nueroscientists still do not know how the computer modeled brain actually...

you are a jewelry shop owner. one day a customer comes into buy a $70 ring. He only has a voucher worth $100. you do not have any cash around, so you go next door to the pastry shop and ask the owner to change the $100 voucher for cash. the pastry shop owner gives you the cash. you go back...

A friend of mine is really pulling my chain. He said the answer to this was right in front of me. I doubt that! Does anyone have an idea on this? "I have a bar of chocolate 6 blocks wide by 9 blocks long and I want to split it into its individual blocks making the smallest number of breaks...

http://www.sciam.com/article.cfm?chanID=sa017&articleID=434D7C62-E7F2-99DF-37CC9814533B90D7 I found this article quite intriguing.

A question that was asked in a Microsoft Interview: There are 4 women who want to cross a bridge. They all begin on the same side. You have 17 minutes to get all of them across to the other side. It is night. There is one flashlight. A maximum of two people can cross at one time. Any party who...

The senses in our body sends electric pulses to the brain. Once it reaches the brain, what happens to the pulse (in the context of conservation of energy)?

Why is it that I can remember little unimportant events that happened in my childhood over 20 years ago, but I can't remember what I wore last Monday? I know major events that happened in your life your brain will remember for years, but I can remember one particular day sitting in my elementary...

As far as I know, the brain generates electric pulses to communicate. If a human being is electrically grounded, how could the charge flow or get created in his brain? A grounded man shold be brain dead :), right?

What kind of short term and long term effects does DMT have on the brain?

I can be rather obsessive about finding answers to brain teasers. Most brain teasers I can solve with some reasoning, no problem. This one though, I have thought and thought about, and can't come to a conclusion that satisfies me enough to say "this is the answer." The question/prompt is...

My Friend told me this one and I'm stump. Well anyway here it is and have fun! You're a modified human with robotic parts (aka the 'cyborg') in a pistol duel with two other cyborg, making a three-way free-for-all. You have been programmed to fire pistols with an accuracy of 33%. The other...

Due to the growing population, a new High School was built. In this New high school was 1000 lockers for the students and of course the lockers were numbered one through one thousand. During recess a school wide experiment/project was planned among the students and teachers. At the beginning of...

This one is about bouncing springs. There are three springs bouncing on the floor, A, B and C. Spring A has a period of 2 seconds, spring B a period of 5 seconds and spring C a period of 9 seconds. If they all start at equilibrium position, eventually the springs reach back the equilibrium...

The other day I was talking to my friend and we were just thinking about infinity. I used this analogy to prove how it is that we cannot 'see' some things. Lets take parrots, they can see ultraviolet I've read somewhere. But we cannot so we can't even imagine such a colour. It's beyond us. Such...

I would find this so much cooler and less creepy if Microsoft wasn't involved. I don't like them thinking of my body as a computing resource. *That was a joke. I don't actually know whether or not they want to eat your brain. We're still allowed to make jokes, right? Or have they patented all...

Where is the part of the human brain located that is responsible for the sensation of pain?

...into this type system? Take the tests before you read the article, please. :smile: http://f0rked.com/articles/estheory" My scores: E = 49; S = 48 My type: S (Okay, the test is a little repetitive, so my mind was wandering while I was taking it, and I wonder how the different brain types...

I have been reading an aged book about superluminal transmition of information. I am only a couple chapers into the book, the part where the author is introducing the uninitiated (that would be me) to the concepts of reletivity. On thing he keeps coming back to is that time, length and mass...

Do u think feeling is all controlled by the brain and that we can live without feeling or is it something that we must with live? for example pain is controlled by the brain pain only occurs to people when they are aware of the injury. so technically can't we get rid of pain and live without it...

Other than good nutrition what can you do to increase your brain performance, concentration, and speed? Any suggestions will be appreciated.

Is there anything that can distinguish a person who likes to steal, cheat the government, etc from honest people in the way they behave or brain activity. Or is it free will to obsess? In general, what is the foundation of finding righteous and evil people?

I just heard about this last night and I find it interesting - http://news.bbc.co.uk/2/hi/technology/6600965.stm" They ran it at 1/10 time? Can someone please explain to me what this means?

I have read that scientists have been able to discover adult stem cells in human brains in the grey matter. Is it possible to activate and control the differentiation of these stem cells into different neuron types within the human brain itself instead of a culture? If not, why not? what would...

is "The brain That Changes Itself" the best book on neuroplasticity? I've seen a few articles about this topic now and was wondering what the best book on the subject would be? My goal is to rewire my brain and turn it into an NES emulator so I can play Super Mario all day! :biggrin:

Is it possible for a human to have an abnormally fast growth of brain size and development leading to a fully grown adult brain before say age 15 or even 10? If so are there cases like this and what happened to them? Is this how child prodigee comes about? Or is child prodigee usually good at a...

Physiologically, is there much difference between the human brains of 500 to 1,000 years ago and today's brains? About when in our past would you say a minor difference in the comparison begins? By "minor difference," I mean perhaps in overall intellectual and/or mental abilities at around...

At atomic level, can someone clarify how memory is stored in the brain..

I'll give three subjects to work with please tell me any descriptive attributes to them: Thinking: If you think with the knowledge you have now but expand on it does it help yourself? Also, how does learning have to do with this Learning: How do you know when your learning at your limit...

I know this is probably a huge question to ask, and would be surprised if anyone knew the answer. It is, in my opinion, a question that is key to the understanding of consciousness. My problem is this: I build a robot that behaves and looks exactly the same way as me. It is simply not...

without our brainpower we would be close to the bottom of the food chain... am i right? a human is slow compared to most mammals, a human is weaker then all predators around our size. a human has bad vision, hearing and smell sense compared to the rest of the earth creatures. (special...

Homework Statement During a 65 ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 6.0 mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 . The mutual inductance between the two coils is...

Brain Teaser! This algorithm lists all permutations of {1,2 ...n} in increasing lexicographic order. Input: n Output: All permutations of {1,2...n} in increasing lexicographic order. 1. permutation(n){ 2. for i = 1 to n 3. Si = i 4. println(S1...Sn)// print the first...