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Questions tagged [brain]

Tag for questions regarding the brain. The brain is the portion of the central nervous system that is located within the skull. It functions as a primary receiver, organizer, and distributor of information for the body. It has a right half and a left half, each of which is called a hemisphere.

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Why do our brains act in such a evil way sometimes that hurts other people?

I have seen some real evil acts. And I almost lost confidence in humanity. Why do we become so evil sometimes that hurts other people? I guess everybody knows the Renaissance novel Les Miserables by ...
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Brain controls body what if you control both? [on hold]

In a movie named Ninja Assassin The master was teaching his students about the power they have He took a knife and wounded his hand then he put the other hand on the wounded hand and the wounded hand ...
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How does intelligence or general cognitive ability vary with level of CO₂?

The cognitive ability of humans is varies with the concentration of CO₂ in breathing air. But how does it vary? A very high concentration causes sleepiness, and sleepiness is a state of reduced ...
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Is Contagious Yawning a Result of Brain Electromagnetic Waves Transmission?

Do there is a possible electromagnetic wave transmission between two individuals' brains that may cause contagious yawning?
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Brain capillary density

Is there any data available on the density of capillaries in the brain? Also, I have seen images like this (from Chapter 2 of The Cerebral Circulation, by Cipolla MJ.): This illustrates to some ...
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2answers
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Can thought processes be sensed to happen exactly in the head?

It's common knowledge that humans think with their brains. So it's common to associate hard thinking with head and to seemingly "feel" that it's the head which is loaded when one's thinking. But does ...
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Are our human brains programmed as materialistic as one can be?

First of all, not all human beings are materialistic. I strongly believe that. We tend to not be happy with what we have but what we want. We desire for more. There is a saying that says that the ...
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Common latent feature among all “memory techniques”

So I've been delving into "memory techniques" and people who compete in memory competitions(memorizing and reciting a poem in a small amount of time, memorizing a deck of cards, memorizing pi, etc). I'...
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Decussation of Cranial Nerves

Which cranial nerves decussate apart from the few nerve fibers of the optic nerve that do and how to easilly remember the cranial nerves that do? Here is a paper for the Trochlear Nerve But I have ...
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What is the state of the art research of the conscienceness level for high-level cognitive activity?

Everybody knows situations where activities requiring concentration and high level consciousness can over time become a "background" task. For example: you read a text aloud but think about other ...
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Why do people have eureka moments of revelation while taking a shower? [duplicate]

What kind of mechanisms are at work to cause creative thinking or revelations during auto-pilot tasks like taking a shower or teeth brushing? This describes it: Incubation period - we are working on ...
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When does a human baby develop a consciousness?

Not to offend anyone or anything, but I've been searching up about abortion lately, and all the debate about it, and it got me wondering, when does a baby develop a consciousness? Consciousness - the ...
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1answer
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Mind uploading & its constituents: Theoretically possible?

Is it possible to remove the mind from the rest of the body and have it "alive" somehow as in its former known form? Mind uploading would be computerizing a mind to preserve data, memories and etc. ...
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1answer
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What's the memory capacity of the human brain? [duplicate]

This article, Human brain can store.. claims the memory has a capacity of around 1 petabyte or quadrillion bytes. This other one, What's the memory capacity of the human brain claims the memory ...
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1answer
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Cingulate cortex vs Limbic lobe are they same or slightly different?

I've read the wikipedia article on Cingulate cortex and the article about limbic lobe. Also did web search but it is not clear to me whether they are synonymous or there are slight differences in the ...
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Supplementary Motor Area or Juxtapositional Lobule Cortex

Harvard-Oxford Cortical Structural Atlas now calls the 'Supplementary Motor Area' the 'Juxtapositional Lobule Cortex (formerly Supplementary Motor Cortex)'. I've looked for papers that explain the ...
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Is it possible to tell the difference between schizophrenics and pathological liars using a brain scan?

Someone says they hear voices. There are many explanations: They are having auditory hallucinations that to them sound like another person. They are interpreting their inner monologue as an external ...
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What happens to the brains that are utilized during studies afterwards?

The procedures may vary from country to country, but I'm wondering if they are cremated or otherwise disintegrated.
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Visual Cortex percentage

Could somebody help please in providing some research papers or a resource book that states how much the visual cortex occupies of our cortex? I am trying to find some reliable source but I couldn't ...
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What information does the connectome actually contain?

I am not a brain scientist but the following question seems reasonable to me. Prof. Sebastian Seung has given a TED talk named "I Am My Connectome". If I understand correctly, connectome is ...
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Is there a mindfulness meditation technique that tends to produce gamma rhythms in the brain (and not just the alpha frequencies that are typical)?

This is a follow up to a paper (^) that was cited in a response to one of my past questions here. It was found that experienced Buddhist monks generate a substantial increase in gamma waves on demand ...
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Can frissons provide an accurate metric to gauge emotional intelligence?

This relates to my other post Frissons on demand. As is stated in the abstract of the cited source below (which discusses voluntarily controlled piloerection), the ability correlates with personality ...
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Concept of Free Will [duplicate]

I was not really sure which stack exchange to post this question, however, this one suits well I am guessing. So assuming that the brain is just a carbon-based input/output calculator, and assuming ...
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Cerebellum question

Sorry if this sounds at all like pretentious armchair theorizing(it basically is), but I have a question which I can't really figure out how to search. So, given the resemblance of the cerebellum to ...
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Why can't human thoughts be stored in metals?

As metals are good conductors of electricity and they can be charged by the electrical activity of thoughts, why can't human thoughts be stored in metals? Why thoughts cannot be stored in the form of ...
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Which are the arguments for asserting mental life/consciouness happen only in the cerebral cortex?

I've read many articles / researchs and they are hard to follow. Several times concepts are hard to understand, it would seem certain concepts such as "cognition" are fuzzy terms and they become part ...
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Article about DTI of Autistic Brain

Does anyone know where do I find the article that published this image? Appereantly it was created by a neuroscientist called Jason Cooperrider and it is the tractography of Temple Grandin's brain. ...
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1answer
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What does “The brain has its own language for testing the structure and consistency of the world.” refer to?

The late Dr. Carl Sagan is famous for many different contributions to both scientific research and science education. One memorable line is discussed in Are we really star-stuff from the interior of ...
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Can the brain be enhanced by adding more neurons?

I was wondering of ways to enhance the brain. Couldn't we add a sort of substance to improve the brain? Will it somehow adapt? The brain should 'wire up' the new substance to the existing one. As ...
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Can drugs support emotional developement in personality disorders?

Some personality disorders are associated with a degree of emotional blindness or coldness with narcissistic PD being such an example. I wonder whether there are drugs that - in addition to ...
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when is default mode active

AFAIK default mode is important for our well being since as I am concerned one of its functions is to make sense of things we learned, experienced, etc. Here is says default mode is active when ...
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Are scintillating scotomas really caused by cortical spreading depression? If so, how is this known to be true?

I have just read about a visual effect called a scintillating scotoma. Many variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the ...
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What is the human brain made of?

I read an article that stated that the human brain contains 60% fat. Is this fatty tissue structural building material? Or does it just serve as an energy source for the mitochondria? Since our body ...
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3answers
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how to train our brain to always use left part for thinking & deciding things?

how to train our brain to always use left part for thinking & deciding things? How do I not take emotional decisions
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How does the brain create original thoughts? [closed]

Since the generation of thoughts requires the coordination of various parts of the brain, how does the brain know which parts to activate to develop unique ideas? Does the brain randomly activate its ...
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Why can't we learn what we don't like?

The school system as we know it, is & has been shaping students to fit the system which they live in and throughout this process, the students are forced to learn(mostly memorize) subjects which ...
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Why does emotional pain sometimes feels like physical pain? [duplicate]

So here's a question from a newbie. I read somewhere that emotional pain can last as long as 20 minutes. Anything painful you feel beyond that is just a result of overthinking. Well whatever it is, ...
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How are tactile pleasure and pain differentiated in the somatosensory cortex?

A recent question here asked about (mostly) how pain and pleasure are differentiated in pathways involving reward/aversion cues. But there was some confusion as to what the question really wanted to ...
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The relationship on deja vu, dream and retrocausality?

In quantum physics, there is a topic on something called retrocausality, which addresses whether the future can affect the present and whether the present can affect the past. In terms of deja vu and ...
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How is the human brain evolving?

I came across this article which states that brain takes about 20% of the body's energy. This is quite a lot compared to its size. Somewhere I read that even if this is a lot, this must be an absolute ...
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2answers
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Converting human's memory into digital data

I am wondering whether converting someone's memory into digital data is possible or not. It may sound ridiculous. However, if chance is not 0 then what kind of studies might be used? What kind of ...
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1answer
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Could we develop a notion of conceivability that would allow us to imagine impossible/inconsistent/illogical things?

There are things that we cannot imagine because they are impossible (like a solution to Russell's set theory, since it is impossible to reach that solution because it is illogical.) Some months ago, ...
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1answer
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Performance of a damaged brain

I have heard stories/reports that if a certain part of the brain (taking care of certain functions) is damaged other parts take over the function of the damaged part. Intuitively this could mean 2 ...
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1answer
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Is low self-esteem, a brain chemical imbalance problem, rather than a personality defect, and can't be fixed by any amount of counselling/self-help?

I am asking this question because I recently observed something within myself:- I think I used to be a Borderliner plus Bipolar. I was very sensitive, and slightest of events will either induce mania ...
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What would happen to the human brain after running out of memory?

According to this answer humans have enough memory to store 300 years of TV shows. However, of course, it is disputable, as storage system would be completely different from storing TV shows (videos) ...
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What introductory textbook is available about the corticostriatal brain circuitry?

I want to understand the basal ganglia better. In particular, I want to understand the role of the corticostriatal brain circuitry for non-motor functions, including emotion and cognition. I have ...
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2answers
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The computer model of the brain

I am a computer programmer or computer engineer, and am interested in comparing the brain to a classical computer in some way. How well does this comparison hold up? This is a general introduction ...
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What are the thoughts? [duplicate]

At the neuroscience level, what are thoughts? I mean, are they just electrical synapse through the brain in a recognizable patterns? if so, How are those electrical pulses originated?
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Negative Rewards(punishment) processing in Human Brain?

Can someone please tell me how negative rewards or punishments are processed in the human brain? Do we have a separate segment to process positive and negative reward and are the positive and negative ...
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Are thoughts transferred along with a brain during a brain transplantation?

If I'm transplanted with, e.g., Stephen Hawking's brain, would I start to think like him, or would I remain to think like me? On which, "thinking" ability depends , is it the physical structure of ...