Questions tagged [brain-development]

For questions about the physiological and embryological foundations of neural development

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92 views

Understanding the 'Wiring Catastrophe'

Introduction: In 'Wiring optimization in the brain'(2000), Dmitri Chklovskii and Charles Stevens analyse the dependence of the complexity of cortical circuits on the number of synapses per neuron ...
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1answer
64 views

Modelling the Human Brain as a directed graph

A mathematician on the MathOverflow, Hans-Peter Stricker, recently(2016) considered the possibility that human brains may be modelled as directed graphs with neurons as nodes and synapses as edges. I ...
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Supposed 'brain training' [duplicate]

The term brain training is nothing new, however how effective is the 'N-back' method, does this work scientifically speaking? There are mixed reviews on this: one claiming it works https://www....
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1answer
97 views

why are all human brains so similar in brain structure, specialization of their parts and functioning?

As a result of my growing interest in neuroscience, I have begun to try and understand the functioning of the brain. However, I am always confronted by the following questions: The brain is a ...
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1answer
57 views

When does the brain stem appear in humans?

When does the brain stem appear in humans? The following article states: Once the neural tube closes, at around week 6 or week 7 of pregnancy, it curves and bulges into three sections, commonly ...
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711 views

How do we know human brain development stops around age 25?

I've heard this stated as a fact more times than I can keep track of, but I haven't been able to find papers that actually demonstrate this. This seems to be the most cited paper on the topic, but it ...
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1answer
64 views

how does our brain knows the simialrities between anything?

If I see your face today then I will recognize you if I see you tomorrow. There must be something similar will happen in my brain for both incident, since the inputs to my body/brain is similar(at ...
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1answer
80 views

Body temperature increasing when trying to solve difficult problems

[ I am unsure if this is the correct site to ask this question ] I am a HS student, currently studying IT and personally I focus on the field of software (programming) and of course where there is ...
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64 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 ...
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Is it possible, on an individual level, that someones fluid intelligence can “spike” in ones early twenties?

I think IQ and fluid intelligence are interrelated enough that I can use them interchangeably. I was wondering if on an individual level, if it was possible that ones IQ can jump a certain amount of ...
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214 views

Variation in prefrontal cortex development

I have read everywhere that the prefrontal cortex is not fully developed until about the mid twenties, but everyone's brain develops differently. Is it possible for a teens prefrontal cortex to be ...
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Are there any long term cognitive impairments from prolonged period reduced sleep? [closed]

What are the consequences of chronic lack of sleep? For example, insomniacs are known to sleep less than normal sleeping individuals. I am wondering if there are any long term cognitive impairments ...
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Is Approximate Number System used only for comparing magnitudes of groups of things, or does it also help in actual counting?

By ANS I am referring to this According to this reddit answer The human mind has two systems for representing numbers: a subitizing system for numbers up to four, and an approximate ratio ...
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Can drastic changes in stress levels impact long-term memory? [closed]

Can going from a highly intensive and stressful environment to one which is calm and relaxed impact long-term memory or, specifically, one's ability to easily recall information? For example, I have ...
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70 views

Does increased motor development always occur at the expense of speech development, or vice versa?

It is often said that infants / toddlers* develop in a focused manner. I am specifically interested in the notion that a quick development of speech occurs at the expense of motor skill development ...
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1answer
42 views

How does the brain encode order of information in sentences/stories?

When memorizing a sentence or a full story: then, how does the brain encode the order of the words of the sentence or the sentences in the story?
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905 views

What causes emotions?

I have absolutely no knowledge of psychology. But I am wondering what causes emotions in human? Emotions such as happiness, sadness, love, hate etc. Is there some sort of hormones responsible for this?...
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1answer
53 views

Neuronal differences of linguistic statements [closed]

Assuming that the brain (structure) is only constructed using neurons and synapses, then what is the difference between the following linguistic statements from a 'mechanical point of view'? Bob is a ...
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37 views

Thinking about something vs. doing something [duplicate]

In computer programming, when a program analyzes itself, we call it "reflection" or "introspection". Example: A program has several features. When the program runs, it can analyze itself to determine ...
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1answer
30 views

Are inhibitory synapses the cause of not doing something?

Imagine you are driving your car, in front of you, you see a wall. What prevents us from driving against the wall? Is this accomplished by the brain having inhibitory synapses established here?
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1answer
32 views

relation of substantive/verb to declarative/procedural memory

Is there a relation between "declarative vs. procedural memory" and "substantive vs. verb"? For example, are substantives (as a kind of information entities) stored in the declarative memory whereas ...
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2answers
215 views

Which part of the brain is not working optimally if an individual is unable to understand scientific concepts and mathematics?

I have often observed that while I can understand concepts related to Finance and Literature very easily I find it extremely difficult to understand scientific topics related to Physics, Maths or ...
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1answer
98 views

Re-arrangement of brain's functions

In a neuroscience class, I was told that if some part of the brain gets damaged somehow and it's early enough, the functionalities of that part of the brain are rearranged to another part of the brain....
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2answers
398 views

Why doesn't the brain get into infinite loops when being queried?

In computer programming, when algorithms are using loops/recursion without an exit condition, the algorithm will never end or get out of resources. How does the brain work around getting into endless ...
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1answer
175 views

What happens to brain during meditation?

Meditation has many benefits.For example it helps to relax, reduce stress, etc. But how it is working? What exactly happens to our brains during meditation?
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1answer
2k views

“top-down” and “bottom-up” processes

What kind of processes are "top-down" and "bottom-up" processes in the context of processing visual information in brain? Context: ...There are discrete areas in the visual cortex dedicated to ...
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1answer
164 views

Is cortical magnification in the visual system related to synaptic pruning, or is it a separate developmental or learning process?

I'm primarily interested in learning about current computational models that explain cortical magnification in the visual system. With this in mind, my specific questions are: (1) Is this phenomenon ...
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163 views

How can we be formed by our childhood's environment if we don't remember much of it?

Studies with rats have shown that how much a pup is licked during their early childhood predicts their adult personality [1]. Also, many psychologists say that early childhood is the part of our lives ...
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Full list of the capabilities of human brain [closed]

I am studying the concept of multi-tasking. The premise upon which I am asking this question is my belief that multi-tasking is a myth(as discussed in a few books on the same topic) and that the brain ...
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1answer
137 views

How does it come about that specific areas of the brain are associated with specific functions?

During the development of the human brain, specific areas come to perform specific functions. How (and when) does this differentiation come about? Presumably, some areas of the brain naturally take ...
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263 views

Are people who are very “aware” of the world that way because their brains are more advanced or les advanced? [closed]

Usually when we think of people who are very aware of their surroundings or very sensitive to the subtleties in all situations, we assume that it is because their brains are more advanced so they can ...
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38 views

Spontaneous muscle twitching?

I am trying to understand the role of whisker twitches during sleep in the development of the mouse brain, and in general the role of spontaneous muscle activity in brain development. Thing is, I am ...
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1answer
2k views

Difference between active and passive touch?

I am considering the role of whiskers in the development of the mouse brain, and came across the following: 'we found that the signals sent to the brain by the whiskers during active touch differ from ...
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893 views

Do ADHD drugs harm the brain?

Particularly, the amphetamine "vyvanse". If one was to take a 30mg dose once a day for 50+ years, would it damage brain function at all? Would the brain simply get used to the drug and become 100% ...
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Does masturbation affect brain in long term?

I am interested in knowing. Does masturbation (once daily) affect the brain negatively in terms of: Memory and concentration skills during the long term ? Does it affect it in the short term? After ...
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656 views

Why is it so difficult to use a “true mirror” as a mirror

This Youtube video shows what a "true mirror" is: https://www.youtube.com/watch?v=ZSxCZCy5Wsk In short, when you look into a true mirror you look at yourself (among other things) as you really are, ...
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676 views

Are the two halves of the brain mirror images of each other? [closed]

Can this question be answered in terms of the relationship between handedness and hemispheric asymmetry. so the left hand controlled by the right hemisphere, and right hand controlled by left ...
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Does the brain burn more calories when “thinking quickly”? [closed]

If a person intentionally "thinks quickly" would this affect how much glucose the brain consumes? Or would it not be very significant?
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314 views

Study Effectively [closed]

I have 1day for the exam and there is much to study and Is there anyway to study Effectively.. This is not just for tommorrow this is for the entire life.. I'm feeling little low. Is there any ...
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1answer
292 views

Do people with Asperger syndrome have two left brains?

I have heard that people with Asperger syndrome have a problem with the right brain, but it increases the ability of the left brain. In other words, AS people has two left brains; the second left ...
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1answer
228 views

About the left and right side of the brain

If you are right-handed person, does it mean that you often use left brain (the left part that contain analysis, language etc.)? If you often use right leg being crossed over left leg, what part of ...
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5k views

Folding (wrinkles) in cortex: Why is surface area more important than volume?

When we look at the cortex of the brain, it has a folded structure. It is said that this is because this enables a greater number of neurons to exist, which is obviously advantageous. However, we ...
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92 views

Early Alzheimer's and cognitive remediation programs

Early symptoms of Alzheimer’s disease (AD) includes the loss of short term memory including prospective memory. On a physical level brain cells are being destroyed and that disrupts the neural ...
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What are the effects of antipsychotic medication on brain volume?

I have read numerous different papers each claiming that antipsychotic medication either helps maintain brain volume or causes brain volume reduction in patients with schizophrenia and other psychotic ...
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1answer
579 views

How much alcohol is negative for brain function?

How much alcohol can you consume before it starts to kill a single neuron or interfere with proper brain functioning? Does it happen: If you take just a few drops of alcohol? If you drink a rum and ...
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3answers
215 views

Does logical thinking or counting develop first in children?

During the course of normal brain development, what comes first: logical thinking or counting?
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what is the reptile brain?

As a Carl Sagan fan, I remember (in Cosmos TV shoe) "territoriality, aggression and ritual" are products of the reptile brain while higher-level stuff like loyalty, planning for future are mammalian, ...
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What causes seizures to develop years after a childhood brain injury?

A friend of mine told me that her daughter was in an accident prior to the age of 12 which resulted in head trauma and brain damage. The child went through an extensive recovery process (relearning ...