Brain Definition and 740 Threads

The only evidence I have is from introspection, but it's happened so often I'm wondering if it's a more common experience. The day after drinking heavily my mind is not sluggish. It's lightning fast. I'm extremely sharp, I talk very quickly, produce more jokes, see though irrational...

So, in another thread I found a link to results of 2011 Siemens Competition in Math, Science & Technology: http://www.siemens-foundation.org/en/competition/2011_winners.htm Apparently competition is held in US. Out of 20 winners 14 are Asians - 70% (that is assuming Vickram Gidwani counts...

Bigger brain, smaller... so there was a study that said the smarter you are, the smaller you are too. so my question to all you smart people is, how big are you? I am 19cm (please answer in cm)

is it way to simplistic to think of it in this context?

http://www.ted.com/talks/allan_jones_a_map_of_the_brain.html?utm_source=newsletter_weekly_2011-11-11&utm_campaign=newsletter_weekly&utm_medium=email" http://www.ted.com/speakers/allan_jones.html" http://human.brain-map.org/explorer.html" Lots of explore and research here, cheers Paul...

Hello, i want to know if there is any way we can describe the way our brain transfers information using Quantum Information theory. I have been looking at Quantum Information theory for some time now and would want to know if it will ever be possible to transfer information directly from the...

Interesting http://www.ted.com/talks/iain_mcgilchrist_the_divided_brain.html?utm_source=newsletter_weekly_2011-10-25&utm_campaign=newsletter_weekly&utm_medium=email"". Rhody...

Is it a collage of interacting nuerons and the cohesive accumulation of information? Or something else, don't tell me its dependent on quantum proporties?

I know I am missing something simple here. This is only the second problem and I have done the rest with no problems. I would appreciate a second set of eyes. Homework Statement The mass center G of the 1430-kg rear-engine car is located as shown in the figure. Determine the normal force...

I thought I would throw http://www.npr.org/blogs/13.7/2011/09/09/140307282/addiction-is-not-a-disease-of-the-brain" into the Lion's den, and watch, I mean read the reactions to it (and possibly contribute if it gets interesting, you never know with this crowd). Mentors, if you feel this belongs...

The "god helmet" effects on the brain Vs. it happening without wearing one. http://en.wikipedia.org/wiki/God_helmet - It obviously has an impact on the brain, some more unique or intense than others. What I'm curious about is if the phenomenon is a product of the brain or something...

Well folks, I will be sitting an exam tomorrow morning at 9am in which I have to travel 2 hours prior and maybe fit in an hour of revision. Anyone recommend good energy sources for the 3.5 hour exam? :-) I was thinking redbull drink...:devil:

Encapsulate xyloglucan¹ and stem cells in a material that could pass through the blood-brain barrier before being dissolved by enzymes specific to the brain. ¹http://medicalxpress.com/news/2011-06-biomaterial-aids-nerve-regeneration.html

We can currently do transplants of lungs, kidneys, livers, etc. if those organs are damaged or diseased. Will we ever be able to do so with brains? I've heard a lot about the possibility of growing replacement organs in vitro or using 3-D printers to create replacement organs. When will we be...

This is difficult to explain, but it's something I've experienced for as long as I can remember and am wondering if anyone else shares these symptoms. Whenever I listen to someone speaking softly or whispering, with a soothing voice, I get tingling sensations in my ears, scalp and neck. Using...

So my comprehensive exams (aka qualifying exams) are coming up, and I've been studying my rear off to be ready for them. Anyway, today I switched from character theory to functional analysis, and came to the sudden and horrifying realization that my brain has stopped working. Essentially, I...

As the thread: Why haven't the brain among different species developed in general to a size comparable to Homo Sapiens. And even though the brain among Neanderthal was considered to be bigger than Homo Sapiens, did the evolution considered that it was too "big" or too "clumsy" and the race died...

I read in Dr. Ivy's book* that testosterone blocks the effects of cortisol and causes cortisol levels to rise in response to this cortisol resistance but has a net pro-anabolic effect (I guess in part because it blocks cortisol's catabolic effects and the body will not totally normalize the...

I'm new to this forum, and I'm not very educated in biology, although i have recently grown extremely interested. I have gathered bits and pieces of information over the years on how the brain works and have some questions. I understand that the brain is still like the depths of space when it...

Hi all PF members! I've been bothered for many years by Panic attacks. It started when I was 15 and now I'm 17. Personally for me, the attacks occurs at evening and night but are common at the day, the attacks contains: intense death anxiety and hallucination. I've read about it and it seems...

Folks, I read an article in the Sunday Times as attached. How does this compare against the outcome of the autopsy performed on Einsteins brain? The article seems to be implying intelligence depends on only the miniaturisation of cells and the density of connections. Surely the evolution...

OK I know brain waves are cyclic but do they use the same electrons throughout or do they switch between electrons?

Yesterday, http://news.yahoo.com/authorities-3-swept-over-waterfall-presumed-dead-180056413.html" when they were washed over Vernal Falls. My first reaction was sadness for the families but, after reading the story of how this happened, I have to wonder how blatently stupid some people can be...

Good day Physic Forum: I am a third year Electrical Engineering student at the University of Technology, Jamaica, where I specialize in Instrumentation and Control System. I have being in the process of brain storming ideas for my senior project from early as March of this year and up to this...

Some may find this interesting: http://www.sfn.org/skins/main/pdf/neuromyth_busters/neuromyth_busters.pdf Myth: You only use 10 percent of your brain. Myth: Listening to classical music makes you smarter. Myth: Vaccines cause autism. Myth: Brain damage is always permanent. Myth: Your...

I recently read an article in Scientific American,it was given that the laws of physics will prevent the human brain from becoming an even more powerful thinking machine,i would like to know how do the researchers predict about the human brain's evolutionary limit when we are one of the most...

i am not much into biology but i have been reading about brain and mind ,i still don't get a satisfying answer,hope u people could help or give a link that may b useful

What scientific tests can be made to test what are my (or anyone else) memory capacity? And how do you measure our brain's memory capacity, what measure units do you use? is it like in PC with RAMs or SDRAM or what not?

I saw an old thread on this website that talked about the percentage of the brain being used. But I wasnt quite satisfied with the answers given, not because I believe them to be wrong; I just don't think that their question was direct enough. I have been told that we only use 10% of our...

2(exponential^theta)^2 - 10 = 6(exponential ^theta)

My professor is a brain teasers fanatic and he told us his favorite one, which is one he made himself. He says only 4 persons have gotten it so far, and he's been telling it to all his classes for over 10 years. No one got it right this year =( I am usually long, but I can be short I can...

hi,please how much does the blood pressure in your brain increase when you change from a standing position to your head

New to the forum. What a great resource. I just started learning a bit about string theory and naturally I've developed a few questions. The first thing I'm trying understand involves the idea that a string with enough energy could grow to a membrane of immense size up to the size of a...

Hello, Next year I'll be graduating from a small liberal arts college (University of San Francisco) with a BS in Physics. By that time I'll have 2 years experience working for the Dept of Physiology at UC San Francisco. The experiments I've worked on have been in behavioral genetics, but I...

So many researchers like Stapp, Eccles, etc. talked about the mind able to influence the brain states. My question is.. how does a non-physical mind know what particular atoms and molecules and quantum states to influence? Some theorized that the mind simply chooses what macrostate to actualize...

If it's not one thing, it's another... continued... http://news.yahoo.com/s/usnews/20110506/ts_usnews/healthbuzzcoffeesexincreaseaneurysmrisk

"Humans only use 20-30% of their brain" I have heard these claims over and over, and not once found a reliable source. In fact I haven't met a single person who says this that can even say where they heard it. It seems to me that this can't really be known at this time. What units do they...

Do you guys ever get this tingly feeling in your brain after you spend a long time trying to figure out how to solve a problem (eg mathematical proof) and finally getting it?

A recent study has shown that non-invasive anodal transcranial direct current stimulation (tDCS) over the primary motor cortex can improve certain newly taught motor skills and those skill gains are retained after 3 months adjusted for time related declines in both treated and control (sham)...

I first heard that line in 1995, while upgrading my OS to Windows 95. It's as applicable today as it was then: http://health.yahoo.net/experts/eatthis/6-best-worst-snacks.

Homework Statement http://www3.wolframalpha.com/Calculate/MSP/MSP81919f5fe2322e6eh8200002fi8c90746427bb9?MSPStoreType=image/gif&s=6&w=104&h=56 I row reduced to echelon form...

When we move any part of our body for e.g our hands, obviously, our brain contro9ls each and every movement of our body and the processes which are involved in it. The question is that how does the neurotransmitter get involved in such movements ? I mean, it is understood that there are...

I feel like I can't relax it's Spring break and I still can't relax. I'm an Electrical Engineer student and falling behind my classes. I fell behind, because I was lazy and to catch up I decided just to put in more hours into studying. I'm studying and I'm trying and it feels like I can't put...

Atleast if you ask Stuart Hameroff et al. How possible do you guys think this is? No links please, I am after your personal opinions here :)

A Dr. Linden (I think ) on YouTube says as for the benefit to neurons and synapses research shows little support for brain games etc. but what shows great benefit is 45 minutes of good aerobic workout each day so I guess we have to get off our bums and go to it.

Homework Statement I'm not sure if this is the exact wording, but here it is: Let's assume a family wants at least 1 girl and 1 boy. It stops having kids once it get both. Ex: BBBBBG GB GGGGGGGGGB etc. What is the expect number of kids in the family? Homework Equations Is this a geometric...

Title says it all. How close are we to genetically instilling more memory, faster processing power, etc.. in the human brain? Can an admin please PM this time before just deleting the thread? It's a serious question and an interesting discussion if taken as such.

http://www.youtube.com/watch?v=7A4Qxx7j63Y&feature=related

Homework Statement A uniform electric field of magnitude 325 V/m is directed in the negative y direction in Figure P25.9. The coordinates of point A are (-0.200, -0.300) m, and those of point B are (0.400, 0.500) m. Calculate the potential difference VB - VA, using the blue path...

I'm a physics student and I graduate in a few months. I have been looking for PhD's because I want to carry on learning physics but have so far struggled to find a PhD subject that really caught my eye. I do, however, have an interest in the brain, the mind and consciousness (although I have no...