Questions tagged [neuroscience]

For questions on the structure and function of the nervous system.

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248 views

Which possible methods can be used to determine if a certain part of the brain is active?

The question goes back to this tweet: Julia‏ @JuliaHass I just learned that elephants think humans are cute the way humans think puppies are cute (the same part of the brain lights up when they see ...
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1answer
77 views

People with dead nerves cell, can they feel pain/emotions?

Exactly what the title said, can they feel love/sad/hurt/disgust/fear/etc, emotions, after their neurons are dead? Also are there specific nerves for each emotion that transmits emotion? So let's say ...
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1answer
86 views

Searching for real biological neuron firing data [numeric] [closed]

I am searching for real neuron firing data, so I can look at each neuron for fire timing (frequency) and incoming/outgoing signal-strength. I already found short youtube videos of real neuron firing ...
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2answers
1k views

Why do we have so many wishes and desires?

Two years ago I started to learn (as self-education) evolution theory and neurobiology for to understand - who we are and where we came from? Now I see clearly that we are our brains, which are the ...
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1answer
355 views

How does the brain learn abstract maths?

I have found quite a bit of information of how, on a neurological level, we learn the most basic forms of maths. We seem to be hardwired from the get go, to deal with manageable quantities, can ...
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16 views

Does the increase (i.e. more positive) of an equilibrium potential always cause the membrane potential to increase (i.e. the cell depolarizes)?

I am a little bit confused. I know that for potassium, when less ions are going down the concentration gradient, Ek increases and the neuron becomes depolarized. However, I am also aware that if Ena ...
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0answers
38 views

What part of the brain is different when you have a really good memory?

I wanted to know how the brain of someone with a great memory differs from that of an average memory. This memory does not have to be eidetic, or highly superior autographical or even hyperthymesia. ...
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0answers
18 views

What is the name of this disorder or syndrome? [closed]

I am referring to a behavior of some in this case(a Gamer), who's bought a bad game or something similar to someone who loves to spend time enjoying and playing something, but the "game" is ...
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0answers
21 views

Difference in neural activity of a thought vs. a memory

I want to understand the difference in neural activity between a "thought" and a "memory impression". Is it a "thought" while the neural activity is present in working ...
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0answers
31 views

Schizophrenia and the second personality [closed]

I was diagnosed with schizophrenia and searched for information about this disease and found it matches what happened to me but there is something I did not find in the articles is that I was feeling ...
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0answers
25 views

Does the sensation of pain arise in the brain? [duplicate]

I can feel pain in my arm or in my brain. I have read that you can feel a phantom pain. As if the pain exists outside the body. There is a related process in the brain but the feeling itself seems to ...
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0answers
19 views

Does anyone know of more predictable chronic mild stress articles? [closed]

I am trying to write a paper on predictable stress. These are the only references I can find. Do you know of more articles like these? Thank you very much. Predictable chronic mild stress promotes ...
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0answers
15 views

How much credence can you give to human cognitive studies using mice?

This question is concerning the question, How does the brain’s visual memory work? and the Neuroscience News (2020) article linked in an answer, talking about false memories. I have discussed false ...
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1answer
42 views

Does being sporty affect a person's reaction to emergency situations?

I have always been quite sporty, and I tend to remain relatively calm and composed in emergency or high stress situations. From my personal experience, people who are quite sporty and have been in ...
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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 ...
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0answers
27 views

Square root transformation of Poisson process. How Var[P(sqrt(lambda))] ~ 1/4?

I am working on Kaggle Neural data challenge. A number of spikes given a stimulus are Poisson distributed as $$Y_i \sim P(\lambda_i)$$ The mean and variance of any Poisson process is given as $$E[P(\...
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0answers
16 views

Do stronger emotions take longer to process with dreams?

One theory of dreams is they help us process strong experiences. So I wondered whether one needs a longer sleep after some strong experiences partly to give the brain longer to complete the healing/...
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0answers
15 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 ...
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0answers
63 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&...
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0answers
26 views

If exactly one neuron magically disappeared from my brain, would my thoughts be significantly different?

If exactly one neuron magically disappeared from my brain, would my thoughts be significantly different? One can ask an analogous question about a single neuron (and/or its synapses) being magically ...
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0answers
45 views

Sleep/Dream and Logical Decisions

I discovered that sleep tends to mitigate the 'stress' that one gets by trying to deal with logical problems like work related tasks and general daily life tasks. Does sleep do this by removing the ...
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0answers
10 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 ...
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0answers
23 views

Difficulties in recollecting memory, when execution speed of an action is slow

I learnt to solve Rubik's cube 2 - 3 years ago, I used to practice once in a while, I can solve Rubik's cube within a minute. One day, I went to my uncle's house, my nephew had a Rubik's cube, I ...
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25 views

What is the neuroscience behind copying dialect?

So everybody raised in the same area speaks with the same dialect, why is it so? What is the neuroscience behind this phenomenon?
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0answers
17 views

Calibrate noise dependent on the membrane potential

I would like to introduce current noise into the Hodgkin Huxley model to better represent the natural firing behavior of neurons - now I know that there are several approaches, but I would like to ...
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1answer
64 views

How to view or download an open access article from ARVO journals?

I would like to read or download this ARVO Journal's article, but I just cannot find any button on the website with this functionality: https://jov.arvojournals.org/article.aspx?articleid=2139676 I ...
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0answers
15 views

Any neuroscience related intelligence theories?

Correlations between biological measurements and intelligence has been made in the past, e.g. blood flow or metrics like cortex size, though are there any specific neuroscience related intelligence ...
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70 views

How would you explain the relationship between "ideas", "beliefs", "mental images" and "thoughts"? [closed]

I'd really like to know how psychology and neuroscience are working with the concepts of "ideas", "beliefs", "mental images" and "thoughts" nowadays. I'm ...
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0answers
62 views

Can a student being asked a question trigger a true fight-or-flight response?

I have a professor who, in a lecture, briefly describes the neurophysiology of the "fight-or-flight" response. She states "in the hierarchy of information processing, emotional data ...
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0answers
33 views

Why do Na+/K+ ion pumps in neurons have a ratio of 3 to 2

As I understand it the resting potential is maintained due to the different permeabilities of K+ and Na+ and in fact at the resting potential the sum of the Na+ and K+ currents is zero. The pump's job ...
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0answers
14 views

recommendations for good books focusing on the reward system, motivation and addiction

As the title states, I would like to get recommendations for some good reads about the brain's reward system, motivation and addiction. In particular I'm looking for a book that assumes no ...
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0answers
26 views

Testing Multilayer Perceptron [closed]

The following script is from Trappenberg's Fundamentals of Computational Neuroscience and is used to test a perceptron's robustness against noise. However, how would one alter it to test the output ...
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0answers
86 views

Out of body experience tests. How to contact scientists? [closed]

I am 30 year-old man with cerebral palsy. Somehow that and one antispastic drug (baclofen) turned me into a vivid dreamer and out of body experiencer. I am not a believer, quite the opposite because ...
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0answers
34 views

How does the body respond to having excess levels of neuronal, not synaptic, serotonin?

If a person consumes large amounts of 5-HTP or SAM-e resulting in elevated serotonin levels in their synaptic vesicles, how is this excess offloaded? What is the average rate of clearance? All the ...
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0answers
26 views

Can one neuron denrdite be involved in different memories?

It's clear that neurons are involved in whatever memory. Suppose I see the image of a bird taking off over and over again. The image becomes imprinted in my memory. So when I think about this ...
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0answers
11 views

Non-polar hydocarbons in phospholipid bilayer

I read that the phospholipids in many cell membranes (I am referencing neurons specifically) have a non-polar hydrocarbon tail and a polar phosphate head. Regarding the non-polarity of the hydrocarbon ...
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0answers
26 views

Applying psychoactive drugs locally

I wonder if there are approaches to apply psychoactive drugs (more) locally, e.g. by drug carriers. Usually psychoactive drugs are taken orally/enterally and thus flood the brain unspecifically: each ...
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0answers
21 views

How well is biofeedback understood?

From an answer to the question Research suggesting conscious control over brain region activation? I have learned: »[S]ubjects become better at up-regulating or down-regulating activation in ...
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0answers
17 views

Does speaking to self, use different area of brain as opposed to speaking to a person? [duplicate]

When speaking without the intent of communicating, but just to ones self or reading to ones self. Does this use a different area of the brain as opposed to speaking to a person, or even a device such ...
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1answer
411 views

Meaning of "projection" and "to project" in neuroscience

What is the exact meaning of the term projection and the verb to project in neuroscience? I haven't found any neuroscience reference book or dictionary that gives a definition, although those terms ...
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0answers
60 views

How is a memory lost?

Firstly, I have an incredibly rudimentary understanding of how neurons interact etc. My understanding of memory representation is that it's a group of interconnected neurons that fire in some ...
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0answers
62 views

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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0answers
13 views

"Golder standard" RNA-seq datasets for neurodegenerative diseases

What's your favorite and/or "gold standard" RNA-seq datasets for neurodegenerative diseases? I come from the field of computational cancer genomics where there are some datasets that are well-known ...
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0answers
58 views

Are there any psychological studies of thirst following food that account for SFO-Nos1 activity?

Some studies up to 2015 surprising found that salty vs. non-salty food doesn't make much difference to thirst. E.g. a 2015 study found that: However, according to Prof. Leshem, despite our gut ...
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0answers
38 views

Is there any empirical support to "chemical imbalance theory" for mental illness?

Has it been proved by measurement of chemicals in the brain that psychiatric disorders have either their origin or continuance due to chemical imbalance in the brain? I saw the documentary Diagnostic &...
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1answer
61 views

Voltage Clamp Method

I don't understand some points of the voltage clamp method. In the resting state, Command voltage and membrane potential are both -65mv. If the command voltage increases to 0mv, current is injected ...
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0answers
18 views

Have there been any right-hemisphere-dominant split-brain-patients? [closed]

Do any case studies of right-hemisphere dominant individuals who have undergone a severance of the corpus callosum exist? Thanks.
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0answers
17 views

Using neuroscience to study a new organism [closed]

Consider a situation where you discover a new species and of organism. Using research methods of neuroscience or otherwise, how would you go about analyzing the nervous system and the brain of this ...
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0answers
34 views

Averaging a linear or nonlinear function treatment

In a hypothetical PET study, my sample consists of a clinical population which exhibit brain hypermetabolism. I divide my sample into two homogenous groups. One receives a treatment whereas the other ...
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0answers
34 views

How serious is my case and should I get help? [closed]

So I have been experimenting a bit with pshycadelics nothing too much , I did lsd twice in a period of 3 months , inbetween i have done mdma once. Two weeks after my last use of lsd I started noticing ...