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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12
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1answer
1k views

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 ...
11
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2answers
518 views

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 ...
10
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1answer
224 views

Does the brain generate identical words in different languages similarly?

Saying (or even just thinking) a word or phrase results from activity in multiple regions of your brain. Of course, we can measure/'map' this activity to some degree; From wikipedia: EEG measures ...
9
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5answers
860 views

Why can't we use 100% of the brain in a certain moment?

I know it's a myth that we only use 10% of our brain, but the point is that we use less than 10% in any given moment; only by using different parts of our brain for various tasks over time do we ...
8
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1answer
1k views

Is this brain map scientifically correct?

I'm not an expert in neuroscience but always read about information that seems conflicting to me. On one side I hear that the idea of single brain functions localized in specific brain areas is ...
7
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1answer
486 views

Does the split brain disprove a materialistic mind?

According to materialism, the conscious mind is the product of the brain. Thus, if the brain is split in half such that the two hemispheres cannot communicate with each other, then there are three ...
7
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0answers
219 views

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 ...
6
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1answer
162 views

Why is the occipital lobe behind instead of in front?

These are regions of our brain: Our eyes are in front below our forehead, however, the visual area Occipital Lobe is behind. Are there any biological reasons for this? why shouldn't Occipital Lobe be ...
6
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1answer
85 views

What is it about our brain that breaks when we hear ourselves with a delay?

If you've ever heard an echo of yourself on phone or video chat, you've probably noticed the phenomenon that you completely forget what you were talking about when you hear yourself talking. Have ...
6
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2answers
202 views

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 ...
6
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1answer
822 views

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) ...
5
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2answers
82 views

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 ...
5
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1answer
222 views

Delay time of Transmitting the information from one neuron to another in brain

Inside the brain the electrical signals are transmitted from one neuron to another by using special chemicals, called "neuro-transmitters" from the axon terminals. Could anyone can tell me how to ...
5
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1answer
518 views

Brain Right hemisphere is random and left hemisphere is linear? really?

For long I've seen uncountable number of blogs, websites, tutorials, booklets about career-guide, self-improvement, meditation, parenting etc. claiming; "Right hemisphere loves to work random, ...
5
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1answer
103 views

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 ...
5
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1answer
1k views

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 ...
5
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1answer
250 views

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 ...
5
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1answer
42 views

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 ...
5
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0answers
32 views

Where to find modern theories on how the brain computes inputs and information [closed]

I am a software engineer with a special interest in machine/deep learning and I have a fair amount of experience in this space. In (supervised) machine learning, you are tuning a (very) large data ...
5
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0answers
37 views

How does alcohol increase firing rate in Golgi cells?

I understood that ethanol increases Golgi cell firing by inhibiting the Na+/K+ ATPase channels, which makes granule cells receive more GABAergic input from the GABA that Golgi cells relase. Some ...
5
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0answers
65 views

Is the effect of music on stress just due to beat entrainment?

Different music genres have different beat and rhythm patterns. The lower beat and rhythm frequencies are similar to the frequency of heartbeat and this relax us. However in my opinion, it's relevant ...
4
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1answer
1k views

What is the capacity of the human brain?

What would a reasonable estimate be of the data capacity of the human brain expressed in bytes?
4
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2answers
90 views

What is the state of the art research of the consciousness 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 ...
4
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1answer
858 views

Are we able to simulate pain through the brain?

I have like 0 experience or knowledge about brain signals and all that stuff but I'm curious about how much we know about the brain in terms of like tricking your brain that with simulation of pain. ...
4
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1answer
161 views

Can I read what the person thinking through electrodes or something similar?

First of all I'm not a medical student so I may miss some points here. I know that EOG (electro-oculography) works on the corneo-retinal dipole. The cornea (front of eye) is slightly positively ...
4
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2answers
151 views

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 ...
4
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1answer
227 views

What is the meaning of the brain scan of borderline patients?

Starting from mark 21:50 in the lecture BPD-related cognitive-perceptual difficulties and challenges in their diagnosis and treatment, there is an image of brain scan in borderline patients: What ...
4
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1answer
4k views

Success rates or reviews of Brain Working Recursive Therapy (BWRT), and number of sessions needed on average

Brain Working Recursive Therapy (BWRT), introduced by hypnotherapist Terrence Watts in 2011, is a brand new form of therapy. Hence, my internet search doesn't seem to give me any idea of how ...
4
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1answer
56 views

Is there a neurological difference between someone experiencing a "normal" trauma response, and someone with PTSD? Or are they on the same continuum?

I've been reading Dr. Bessel van der Kolk's book The Body Keeps the Score. Dr. Van der Kolk describes how, in people with PTSD, the brain actually undergoes changes in response to trauma. Their ...
4
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1answer
66 views

Do people who experience heautoscopy become unable to see their reflected image in a mirror?

I understand that people who experience autoscopy can see their body image outside them without a mirror. I had read many years back in a paper that people who experience the inverse phenomenon called ...
4
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1answer
89 views

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 ...
4
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1answer
895 views

Can drawing a duck define a person's hemispheric dominance?

When I was on 7th grade, our math teacher asked every one of us to draw a duck. In the class of 34 students, a large portion of the students drew a left-facing duck. The teacher said that it’s a ...
4
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1answer
1k views

Proportion of cortex dedicated for vision and hearing

I have read in some websites that the percentage of the cortex devoted to processing visual information is from 30-66% with some claiming even 90%. And compared to that, only about 3% is dedicated to ...
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0answers
44 views

How would a human baby's brain develop if born in a sensory deprivation chamber?

According to Scientific American, people who are blind can learn to use their sense of hearing more efficiently. Similarly, deaf people, may learn to utilize their vision more effectively. While the 5 ...
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0answers
129 views

Number of core feelings?

In Emotional Intelligence 2.0 it is stated: We have so many words to describe the feelings that surface in life, yet all emotions are derivations of five core feelings: happiness, sadness, ...
4
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0answers
131 views

Why do male brains not detect extra "F"

Is there a neuroscience explanation for the behavior in the following experiment? Are there any papers or research conducted to find out why this differentiation happens? Count the number of ...
4
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1answer
104 views

Is it scientifically backed that sensory signals always go through limbic/emotional brain system?

From the book Emotional Intelligence 2.0 by Travis Bradberry & Jean Greaves: The daily challenge of dealing effectively with emotions is critical to the human condition because our brains are ...
3
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2answers
1k views

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 ...
3
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1answer
293 views

Are there cases of drug addict that "forget" their addiction after some brain damages?

I'm interested in what I naively call "memory of addiction" - i.e. the brain restructuration that drugs addicts have and which causes the addict to need more and more to be satisfied. Then, ...
3
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1answer
89 views

Measuring serotonin in the brain with a sample of spinal fluid

Is it possible to measure serotonin with a sample of spinal fluid?
3
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1answer
61 views

When I got aware of some ability, I couldn't do it that well anymore [closed]

Every time I got aware of something I could do well, it got a little bit worse. Examples: I could immitate a lot of accents or people, but when I thought about it "Hey, I am very good at immitating ...
3
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2answers
50 views

Is exercise considered a 'fight-flight' situation by our brain?

When you do heavy exercise like running, your heart rate, and breathing increases, is it because of the sympathetic nervous system controls it? Or the Sympathetic nervous system only activates on the ...
3
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1answer
3k views

Difference between the cingulate gyrus and the cingulate cortex

I am doing an analysis of the brain of the Creature in Frankenstein by looking at its actions and experiences from a scientific perspective. For this, I was wondering: What is the difference between ...
3
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0answers
31 views

What is the scientific evaluation of the Grain Brain hypothesis?

The Grain Brain hypothesis states that the consumption of gluten (and grains in general) produce long-term neurological damage. It's been proposed and popularised by neurologist and best-selling ...
3
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0answers
27 views

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, ...
3
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0answers
78 views

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 ...
3
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0answers
129 views

To what extent is face-detection achieved in peripheral vision?

I'm trying to find out to what extent mere detection of faces (i.e. determining that something is a face, as opposed to recognition of specific individuals) is favored in the central vision vs ...
3
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0answers
691 views

What happens in the brain during mid-life crisis?

I was just told by an elder that midlife crisis occurs during an adult stage and it is a time whereby an adult starts having several thoughts concerning his/her life. After my research, I found out ...
3
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0answers
79 views

Is there a relationship between the amount of time spent awake/asleep, and interstitial waste removal in the brain?

With regard to the glymphatic system, is here a relationship between: The amount of time spent awake and the amount of interstitial waste accumulated in the brain? The amount of time spent asleep and ...
2
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2answers
198 views

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 ...