Brain Definition and 740 Threads

Hello, Brain corals, like my avatar's Diploria, get their moniker for visually obvious reasons. I wonder whether there are informed hypotheses how come they look that way. The answer to such a question would probably be partly a morphology/pattern formation story, and partly an adaptive story...

I was reading about alien hand syndrome about an hour ago, something peaked my interest. When where a person has had the two hemispheres of the brain separated it leaves them susceptible to this condition, and from what I understand it's when the other hemisphere, the non dominant one, gains...

So... this may not be the right forum... but I figured biology was pretty close. While we have built a very strong correlation between let's say dopamine and happiness (not sure if that's right), I was wondering if anyone knows of research that looks at correlations between matter and emotions...

Sorry if this post is too speculative, but it intrigues me so much. Is their any evidence between right and left brain usage correlating with a particular skill, such as an artist or scientist? As an artist, I've wondered if their was scientific reasoning behind skill and free will, besides...

So I read this Boltzmann brain concept, and um yeah... So does this paradox imply that it is much more likely that I/you are a mind projecting an illusion universe in which we live as compared to a fine-tuned, and relatively low entropy universe in which there is many self-aware minds..?Also...

How the brain creates 3 dimensional image (what you see) from information that photons carry to your eyes? Photons travel with constant speed so your brain can't calculate how far object is from their velocities. I know stereoscopic vision helps to calculate distance from objects but even when...

Laymen often have trouble understanding science, or the answers scientists provide to their questions here on PF. If you are one of those people, I have a very simple suggestion for how to start thinking like a scientist and understanding key concepts. All you need to do is to purge your brain...

I've learned that the horizontal component is F cos angle not F sin angle, but I'm looking right now into the aqa physics a student book from nelson thrones, chapter 2.3 page 27, and it says that the horizontal components going to be made up of sin and the vertical out of cos... This is about...

Hi :) I'm designing a research and need you guys's help :) It's an experiment to finding out what happens in our brain when we are stimulated by electricity. I have to collect the signals from brain, but not using EEG. (I already failed once...:'( ) I've been thinking about MEG, but it...

Hi :) I'm designing a research and need you guys's help :) It's an experiment to finding out what happens in our brain when we are stimulated by electricity. I have to collect the signals from brain, but not using EEG. (I already failed once...:'( ) I've been thinking about MEG, but it...

i know this problem is posted on this forum somwhere else but i can't quite understand thanks in advance Homework Statement A mass of 0.3 kg is suspended from a spring of stiffness 200 N m–1. If the mass is displaced by 10 mm from its equilibrium position and released, for the resulting...

I have a couple questions actually. One I was wondering in what part of the brain would an interface that allowed you to access the internet be placed in the future? It's not like the brain has an expansion slot. Two how do they decide where to place electrodes in current interfaces? Do...

Although we have nerves throughout the body, a person's essential personality and memories are thought to be stored more or less completely in the brain. In theory, you could transplant a brain into a new body, and the individual who would awaken would be the one whose brain is used. It would...

I'm interested in studying mathematics at the undergraduate level, and have been studying some upper-level courses on my own (technically, for the college I hope to go to, I would only have six courses left to complete a math major). I also am interested in connecting my knowledge of upper level...

I forget where I saw this I think it was the Halo series with the Cortana AI but basically a program used a human brain for processing information and running itself. Would it be possible to have a program running on a human brain? Would the principle be similer to IBMs' TrueNorth chip...

What would happen if you ran conductive nanowires all over the surface of the brain? For the sake of this argument we'll say that the wires are biocompatible. Would it be benificial or would it mess up the brain to have two different parts interconnected?

So, I'm having a pretty lazy day and decided to do some thinking. And, while this usually turns out to be a splendid idea, today it resulted in me hurting myself. Psychically. So yeah. I've been through a lot of toy games trying to figure out a way to reconcile this all in my brain box, but...

A pilot is independent of the cockpit(similar to the brain). The brain only take command for different parts of our body. In other word the brain is only physical or instrument just like the cockpit and the actual thought process is taken by something like a pilot which is different from the...

When transcranial magnetic stimulation (TMS) is applied to certain areas of the brain, once can induce movement of a body part or interfere with speech. This is because the generated electric field influences neurons. The use of TMS at the sensorimotor cortex is quite harmless, but what are the...

Hello! If a person hear song continuously for 15 hours every day for one year by head-phone then will there be any effect on his/her brain?

I am aware that the most popular version of the quantum brain theory i.e. the Penrose and Hameroff version has been disproved experimentally many times. But I was wondering what the status of other such attempts such as Vitiello and Freeman's dialog model is, in the scientific community ? Is...

Shift workers beware: Sleep loss may cause brain damage, new research says http://www.cnn.com/2014/03/19/health/sleep-loss-brain-damage/index.html?hpt=hp_t2

Hi everybody! I'm writing to seek help, very seriously and sincerely. As you can read from the title, my brain was hit back in May, 2009. Strange as it may sound, I realized how horrible the ramification of this accident was after more than a year, i.e., in fall, 2010. Then I started to worry...

Because when parts or one half of the brain(hemispherectomy) is removed on treating epileptic patients or for any other reason. There is not observed any change in the patient memory or personality. The person remain the same even after removal of half of the brain. How is it explained...

Because when parts or one half of the brain(hemispherectomy) is removed on treating epileptic patients or for any other reason. There is not observed any change in the patient memory or personality. The person remain the same even after removal of half of the brain. How is it explained...

I am trying very desperately to figure out this specific problem I don't need examples of other problems i need this very very specific problem before i loose my freaking mind. Please someone explain this and show me how it works I am extremely desperate. I am told this is some sort of key, I do...

Hello! I'm just beginning some volunteer research work on a project and I've been tasked with finding the partition function of a brain tumor that has magnetic nanoparticles injected into it. CT scans provide concentrations and distributions of the magnetic nanoparticles, but I'm quite lost...

I'm aware my following thoughts are highly speculative at best, i just wish to be explained, are they total magic, do they have anything common with reality, what can be their Mohs scale level? I thought about a story, where people fused their brain with nanobots, while they still think like...

I've seen online that you can get a handful of your ashes sent into space for a hefty fee1 and it got me thinking... Would it be possible when dead to flash freeze the brain and send it up into space in a radiation proof container and just allow it to travel through space like the voyagers do...

Homework Statement Two identical blocks are attached by a massless string running over a pulley. The rope initially runs over the pulley at the rope's midpoint, and the surface that block 1 rests on is frictionless. Blocks 1 and 2 are initially at rest when block 2 is released with the string...

Lawrence Krauss says that We evolved as human beings a few million years ago on the Savanna in Africa and we evolved to escape tigers, or lions, or predators. You know, how to throw a rock or a spear or how to find a cave and we didn't evolve to understand quantum mechanics. How correct is the...

How long would it take for your brain to be permanently damaged after holding your breath? In other words, after how long of holding your breath will your brain function be at risk? A quick Google search gave me varied results. :confused:

does direction of magnetic field influence the process occurring in brain? what are the other external factor that influence the brain other than information?

Homework Statement b(B) = cls(B) \ Int(B) where b(B) is the boundary, cls is the closure, and int is the interior of set B. This was not hard for me to prove by picking elements and showing that the sets were contained in one another. However, I decided it would be fun to try to derive it by...

Brain damage, good and bad "damage" There have been cases where normal people without any sort of brain malfunction have lived their lives totally fine without any problem for 20+ years and then they have an accident involving head injury, wake up from either a coma or just after a very good...

Hello, I am not sure where I should be posting this, so if this is the wrong section, can a moderator please move it? Right. I have become rather fascinated with the worlds technology and physics. Now, if you've ever heard of lucid dreaming and I'm sure many of you have. I lucid dream...

This is not a joke. Is it by all accounts impossible to do this, supposing that an artificial heart with artificial blood transport systems (that provide oxygen and all needed nutrients) were used to keep the cells from dying. Also, assuming the brain was yours, what would it feel like to...

I would like to argue that addictions in general like smoking and more disgusting and funny like pornography addiction alter the brain deeply...and I would argue that it impairs our cognitive abilities...for short addictions makes you stupid...since we're all learners here ,what are your...

I see this has already been discussed, so I'll go away now. ------------------------- ps. Someone remind me to read this on Monday. Wow!

College students are notorious for cramming, late night or all night studying, having too-heavy course loads, skipping meals, etc. Much of this is to be expected and in many cases unavoidable. I'm a little bit older (36, I think...) and about to embark on my last year of undergraduate...

Hello, I'm an atheist: a mentally disabled one with depression and no future. So perhaps this may bias my point of view: When we atheists die, we will have no memories and conscious awareness of our success and failures in life because our consciousness and memories are lost for eternity...

Hello all, do you believe that everyone has the same ability to learn and understand something? I'm trying to learn physics at home in my own time using books and the internet. Sure I can read about quantum mechanics or relativity and understand what I'm reading but there is a difference between...

I play games much. Some says it helps to develop the brain of our. So will gaming is bad?

Hi everyone, I know it sounds obvious. But in cerbral oedema let's say due to vasgenic cause,the problem is cerebral vessels becoming more permeable and leaking out blood to extravascular compartment. Now how does the brain get bigger due to this. I mean for brain to get bigger, the...

Hi all, As stated above, what is white matter of the brain? Now, I have already read the standard definition for the term: White matter is composed mostly of myelinated axons. However, I seem to have difficulty understanding that concept. Is it trying to say that white matter is ONLY...

Can anybody point me to a rough calculation of the probability of a disembodied brain appearing from a random fluctuation vs the probability of a brain evolving in a vary large random fluctuation? I'm an eternalist. I find it easier to accept the ridiculous idea that the universe was always...

Could entangled superposition be something like the state of a mutiple choice question where 1)there are two or more options for answers (...the nature of a multiple choice question:approve:) before an answer is chosen by the observer-test taker and 2) the state of the question once the...

Though it may seem like it, this certainly isn't a homework question so I hope I don't offend anyone with it's placement. This is a simple drawing of a hydraulic mechanism that me and a friend are building. There is much debate about where we need to improve so we are leaving it up to you, the...

Sorry if this looks a bit premature for evolution; just can’t stop asking! Dolphins, human and Crovidaes are living in three different environments, within these three human (land inhabitant) reached the most advance brain function, although our brain could not use many of its ability based...

I thought it would be cool to start a thread with a bunch of interesting logic puzzles, brain teasers, math problems, etc. I'll get the ball rolling: Solution: http://www.mindcipher.com/puzzles/141