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.

Filter by
Sorted by
Tagged with
-1
votes
0answers
52 views

What's the difference between a sleeping brain and an awake brain?

How is the brain when you're sleeping different from that when you're awake? What happens to the brain when sleeping that does not happen when awake?
2
votes
1answer
63 views

How are "ideas" or "concepts" appear in the brain?

I'm new to neuroscience and psychology and recently learned about Hubel & Wiesel cat experiment where "some neurons fired rapidly when presented with lines at one angle, while others ...
2
votes
0answers
31 views

Can a brain outgrow its skull, or have other notable phsyiological effects from increased size or mass?

You may be aware of a famous story which found that Taxi Drivers as well as Super Mario 64 (3D adventure game) players showed a an increase in grey matter located in their hippocampus. https://www....
0
votes
1answer
45 views

Has there ever been a split brain pianist?

Has there ever been a split brain pianist? I was thinking about this yesterday and it occurred to me that a split brain pianist might have an advantage over a non-split brain pianist; they could ...
4
votes
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 ...
1
vote
1answer
72 views

How does our brain remember reminders?

I was wondering about a rather remarkable phenomenon regarding how we recollect reminders. I've read stories where people keep a pillow, or even figures and dolls, near their door to make them ...
0
votes
0answers
25 views

What is meant by the so often heard phrase that we only use 12% of the brain?

I have heard it so often that we use only 12% of our brain. I truly don't understand this. All neurons in the brain are are firing within a small amount of time. Even in my sleep this is going on. ...
0
votes
0answers
17 views

What makes us feel that one person is more beautiful than the other? [duplicate]

What makes us feel that one person is more beautiful than the other? What makes some facial features attractive but some unattractive? Why a sharp nose, smallmouth, blue eyes, bright complexion, ...
0
votes
0answers
21 views

Is there a program in the brain?

In a digital computer the are data, zeros and ones, stored in a material medium. A program is stored in a material medium too. This is implemented in the form of zeros and ones too but the two ...
-1
votes
1answer
95 views

What is the difference between the processing of visual information and auditory information?

We can read: The visual cortex is located in the occipital lobe of the brain and is primarily responsible for interpreting and processing visual information received from the eyes. The amount of ...
0
votes
0answers
51 views

How is the brain divided in parts?

Now I can imagine the body being separated in parts. There is the liver, the bones, the skin, the eyes, the kidneys, the feet, the legs, or the brain. All these sub-units work together coherently and ...
2
votes
2answers
89 views

Does the brain contain chaotic systems, akin to the weather or planetary orbits?

I was wondering whether the brain contains processes that are chaotic in nature i.e. subject to great variance in the long run given minutely different initial conditions down to quantum fluctuations, ...
0
votes
0answers
9 views

about measuring the music effect on the costumer ardual

we are trying to measure the Smell and Music rhythms and types on the costumers arousal-nonarousal dimension and willingness for staying on the shopping environment or buying for market (alert, ...
1
vote
0answers
23 views

Is there a mechanism behind savantism shared by all savant cases (both congenital and acquired)?

Kim Peek (the real-life inspiration for Raymond Babbitt in Rain Man) had a spectacular case of savantism. He also had disabilities, like missing his corpus callosum and anterior commissure, leaving ...
2
votes
1answer
74 views

Why do larger animals need bigger brains?

For example, we can assume that the average house cat is equally intelligent as the average tiger. The average tiger is about 100 times heavier than the average house cat. But its brain is also bigger ...
1
vote
1answer
89 views

What comes first? Thought or electric activity?

Our thoughts are basically the result of the electro chemical activity which are happening in our neurons. The signals sent by different neurons to each other back and forth create a pattern which we ...
0
votes
0answers
36 views

Methods to measure your cognitive function

I would like to monitor / measure my cognitive function in regular intervals (say every 6 monhts) to see whether it improves or deteriorates over time. We all know that our brains function less good ...
1
vote
0answers
22 views

Can some stimulants take the place of others?

I learned in class recently that neuroreceptors can cause different chemical changes in the brain and nervous system. I was told that stimulants increase heart rate and awareness, which got me ...
0
votes
0answers
33 views

Relation between using the phone on the toilet and constipation

It's pretty common nowadays to see people spending a long time on the toilet using their phones. This wasn't a normal behaviour for the human body and I reckon it'd have consequences. So, this got me ...
1
vote
1answer
41 views

How are neurons able to effectively communicate when there are way more dendrites than axons?

Neurons can have up to 100,000 dendrites and typically only have a single axon. This means a neuron typically has a very large number of inputs while only having a single output. Surely you can see ...
0
votes
0answers
41 views

What is the permanent effect of sleep-deprivation on the brain and its cognitive function?

I know that many teenagers suffer from chronic sleep-deprivation. This varies from country to country, but it is widely known that especially students suffer from this condition. Most have a mild form ...
0
votes
0answers
28 views

Mammals with highest synaptic pruning

After human, which kind of mammals have highest degree of Synaptic pruning?
0
votes
0answers
39 views

Does our brain unconsciously keeps track of time? [duplicate]

I’ve had multiple experiences lately where I didn’t look at my phone for a while and then right before I looked I made an approximation of the time and most of the time that approximation was right to ...
2
votes
0answers
26 views

Why is intensive mental activity so tiring if it just spends a bit more energy than in relax?

As far as I know intense mental activity supposes spending about 1% more energy than what you would spend by basically making no real effort in any mental activity. If that's the case, why is so ...
0
votes
0answers
27 views

How do psychedelics work? [duplicate]

I realize my question is more of a pharmacological one than a neuroscientific one, but I didn't know where else to ask this question. As far as I've read, there's two components to how psychedelics ...
1
vote
1answer
140 views

The "Triune brain" model is obsolete, what is the name of the model that replaces it?

The Triune brain model suggests our brains evolved adding more layers, a lizard brain, then a mammal brain, then a new human brain. As that's false, and the same structures have become modified in ...
1
vote
1answer
82 views

Can the human brain be simulated by a computer?

There is a Wikipedia page on brain simulation, but: Question: Could there be (experimental) evidence that the (human) brain cannot be simulated by a computer? Note that the Wikipedia page Mind ...
2
votes
1answer
494 views

What are higher-level and lower-level brain functions?

The human brain can be described as a "Russian nesting doll" in the sense that the most ancient areas of the brain responsible for lower functions are located at its centre while newer ...
2
votes
0answers
73 views

How does the brain interpret electrical brain stimulation?

I believe I understand the natural path, in which stimuli appear and by neural plasticity our brains "learn" these stimuli. I recently learned about electrical brain stimulation and I was ...
5
votes
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 ...
1
vote
0answers
16 views

Do neurons have a single transmitters vesicle per synapse they have?

Do neurons have a single transmitters vesicle per synapse they have? So when they will be activated, each transmitter vesicle is going to one synapse. Or is it that neurons release some amount of ...
1
vote
0answers
64 views

Do all neurons have a "job", or are some waiting to be assigned for a novel stimuli to appear?

Do all neurons have something to do (i.e. all are activated for some known stimuli), and when a novel stimuli appear some of them change in some way so we can learn it? Or is it that we have "new&...
0
votes
0answers
19 views

How does pattern separation works?

I found an article that stated: "Researchers think neurogenesis helps the brain distinguish between two very similar objects or events, a phenomenon called pattern separation. According to one ...
0
votes
1answer
62 views

How do neurons know where to send transmitters?

If a single neuron can have thousands of synapses with other neurons, how do each neuron "knows" to which further neuron to send transmitters? i.e. selectivity
1
vote
1answer
58 views

Reaction when light is turning on and off

This question comes from a personal experience I've had over the last few days, 'experimenting' on my own. I have a light bulb in a room that is turning on and off periodically, let's say per second. ...
2
votes
2answers
83 views

In principle, could a brain be rewired to experience more pleasure and/or pain?

I'm not sure if these are two separate questions, but I'm curious: in theory, could an existing adult mind/brain be modified to perceive pleasure/pain signals more intensely than otherwise? Without ...
-1
votes
2answers
58 views

Could you inject external gamma waves into your brain safely?

I've recently taken up the study of neurology, and I was wondering if you could create a device that would input gamma waves into your brain. And if it would be safe. Suppose you had a device that you ...
1
vote
0answers
48 views

From a general perspective, why are we more likely to remember wanting to do something, but not specifically what it is?

I have experienced several mind pops and instant recalls based on triggered events, and some might come suddenly, or they might gradually appear. Sometimes, though, I remember something that I would ...
1
vote
1answer
50 views

how does our brain know how to provide the right instructions to pronounce words?

Children learn to speak by hearing others and then trying to pronounce these words. What I don't understand is: how does their brain know the right instructions to give to the tongue, lips and the ...
2
votes
0answers
34 views

Biological Neural Network Modification to Unlearn Understandings

Lets assume that a person grows up thinking that religion X is true religion. So he builds up a profile in ones head and when notion of religion X appears the neurons that is related are fired, giving ...
-1
votes
1answer
42 views

Cerebrum and Cerebellum split?

What happens when cerebrum and cerebellum are surgically separated (or partially separated)? Is this lethal, and if not, what are consequences for brain operations?
1
vote
0answers
12 views

What is the size, volume, dimensions etc. of the central lateral nucleus in the anterior intralaminar thalamus in humans?

I have been searching extensively on the internet and journal articles for the size, volume, dimensions, etc. of the central lateral nucleus in the anterior intralaminar thalamus in humans but have ...
2
votes
3answers
632 views

Does the mind create the body?

Everything we perceive is through the 5 senses. That means the body which is perceived through sense of feeling and seeing is also formed as an image in mind or brain? Is it correct that it is either ...
2
votes
0answers
13 views

Function of the Left Medial Prefrontal Cortex

I am searching for a specific (as specific as is currently known) region of the brain that has a known(?) large role in deductive and inductive reasoning. My research has narrowed me down to the Left ...
1
vote
1answer
59 views

Is there a Brain Mechanism for Reluctance of Studying?

For example, it could be the case that a person has less Acetylcholine, a key hormone that enables/helps to establish connection between neurons, so, the person has to go through more hardship to ...
3
votes
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, ...
0
votes
1answer
66 views

What happens inside the brain when we concentrate?

What happens inside the brain when we concentrate (meditate), and why does a person find it difficult to continuously concentrate for a long time? That is, why does one need a break after working or ...
1
vote
1answer
151 views

Brain network datasets

I am a student from Computer Science and interested in graph theory. I was looking for datasets for brain networks (structural and functional) for graph analysis. I have found brain image datasets ...
3
votes
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 ...
4
votes
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 ...