Questions tagged [neuroscience]

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

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18 views

Is there a formal definition for “axon terminal field”?

I would be interested in a formal definition for this term, or at least a paper which describes this notion explicitly (instead of just using the term). Many papers seem to use it, but I haven't ...
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20 views

What's the relation between distorted(REM) sleep and creativity?

I was recently listening to Huberman's podcast where he said that disturbed REM sleep causes people to make odd connections and I was wondering if there is any relation between distorted REM sleep and ...
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Funiculus vs. fasciculus vs. nerve

After reading through a bunch of sources, I'm quite confused as to these three terms. Wikipedia suggests that a funiculus is a bundle of axons, and a fasciculus can contain multiple funiculi. On the ...
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How does loneliness impair intelligence?

With the appearance of covid-19 and the measures that many governments have took to decrease the infection rates of their governing populations loneliness has become more common. I myself find it ...
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30 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 ...
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Structure of synapse

When we study the structure of the chemical synapse, by default we come across Axo-dendritic synapse consisting of various cell adhesion molecules/receptors etc. (like this). However, I was ...
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Neuroscience of dreaming and thinking

When we dream while sleeping, our brain is still buzzing with neural activity. My question is, while my whole body sleeps and rest, what changes take place in cellular activity throughout my body? ...
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46 views

Free will and neuron firing

I have been reading a lot about free will and the most recent neuroscience experiments in that field. However, one way question troubles me to which I have never been able to find any study. We know ...
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18 views

How does Functional Electrical Stimulation (FES) restore motor functions and non-motor functions in SCI patients

I am an engineer dealing with Brain-Computer Interface, and at the moment, in a clinical context. One area which I came across was rehabilitation for patients suffering from Spinal Cord Injuries or ...
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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 ...
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15 views

Surface area in the classic Hodgkin Huxley Model

How can I vary the membrane surface in the classic HH model? I have programmed such a model and now I ask myself how I can change the surface of the compartment, so which parameters I have to increase ...
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What provides regular neuron spikes for internal urethral sphincter to regularly reclench?

This "Scishow" video is about internal and external anal sphincters, its length is just 3:51. The speaker, Hank Green, says: The muscle that keeps things from leaking out of your body, your ...
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Why is a low threshold necessary for generating an action potential?

On page 32 of "Principles of Neural Science," it sates that, "...the initial segment of the axon has the highest density of voltage-sensitive Na+ channels and therefore the lowest ...
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Interpreting FURA depolarization/calcium assay

I did a depolarization experiment that compared a mock-treated cell line with a treated line. One part of the results are easy to interpret: Treatment resulted in lower 350/380 ratios along the length ...
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How does the brain amplify signals without interfering with pattern recognition?

Signals in the brain normally excite neurons only if they are well known, i. e. because synapses pass them on that grew during learning. But even for well-known patterns I could imagine that without ...
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30 views

Can Neuralink really be used for memory implantation?

I think you heard about a company called Elon Musk Neuralinnk. The ultimate goal of Neuralink is to achieve human memory implantation. Doctors were prepared to implant the first bionic eye in a human....
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Is there a specific part of the brain that, as far as we can tell, is used for logic?

I am writing a story which includes a surgical procedure to enhance a persons logic. I am looking for a specific part of the brain that, as far as we can tell with decent science, directly influences ...
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19 views

What does it mean if you are in a sleeping state and you hear a sound that your brain is immediately aware of?

When you are in a sleeping state ,i.e.lying in bed before your alarm clock rings, and you hear a noise or a voice that is not too loud and is not continuous but impulsive, and your brain immediately ...
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23 views

Can the Conscious Competence Learning Model be applied to emotion regulation

Can the Conscious Competence Learning Model be applied to emotion regulation? As you activate the parasympathetic nervous system by utilizing techniques such as meditation your overall emotion ...
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31 views

How a signal is generated by the brain when we want to move a body [duplicate]

I've read tons of articles about how moving our bodies is going on. BUT I've found some part of topic just IGNORED. ALL authors just pass the part "our brain generates the signal". I have been trying ...
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45 views

Neurotically, what is the difference between learning/memorizing and understanding?

I'm trying to understand how our brains - neurons or other chemical processes work in regards to learning/ memorizing and understanding. I found a lot of "theoretical" discussions on the topic- e.g. ...
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35 views

Long term effects of speaking & reading aloud while cutting yourself off from the auditory input

What are the long term effects of reading and talking out loud and while you can't hear the actual sound? Reading aloud increases your memory retention via the the production effect. But that ...
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22 views

How firing of neurons stimulate reality? [duplicate]

Iam just an enthusiast.When I look for how does our brain works it boils down to firing of neurons in a pattern. I read that all of our thoughts, memory is due to firing of networks of neurons in a ...
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18 views

Which area in the brain has the highest number of synapses?

Which area in the brain has the highest number of synapses or connections? I couldn't find any reliable link on the internet.
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What happens to a nueron on a cellular level when stimulated by an electrode?

Considering Elon Musk's new Nueralink, the original Utah Array, and what happens to an individual nueron with long term potentiation, what happens to a nueron on a cellular level (and consequently ...
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Why do people suicide? [duplicate]

No, I am not talking about user suicide. I am talking about actual suicide. Isn't the fear of death naturally so big that people couldn't, but how do they? What would be tormenting them so badly that ...
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67 views

Could bioinfomatics explain consciousness?

There's a theory that consciousness is the result of information processing. Many speculate based on this that the brain is conscious because it is processing information. If this theory of ...
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Neocortical potentiation vs slow wave memory consolidation in narcolepsy

Activity in the neocortex of the brain is significantly reduced during slow wave sleep. The general theory is that during that during this period of time memory consolidation occurs. Individuals with ...
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Neuronal mechanisms underlying delusional beliefs about one's thoughts

Are there known neuronal mechanisms that somehow explain phenomena like thought withdrawal thought insertion thought broadcasting i.e. deviating-from-normal experiences and beliefs about one's ...
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40 views

Whole brain death diagnosis and false positive

In view of the increasing need for organ transplants( possibly because of the greater ability of the surgeons and physicians to both execute the transplant, prevent a rejection, and/or diagnose the ...
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Functional neuronal units that occupy the same brain region

[Thanks to Bryan Krause's advice, I edited the question.] Definition: Let two functional units be two sets of neurons, A and B, such that the probability of being connected (synaptically or by ...
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Trust after the first 200 milliseconds

In the first 200 ms of meeting someone our implicit / System 1 brain makes a number of inferences (based on age, gender, race, voice, smell among others) to determine whether we ‘like’ the other ...
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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
50 views

Is the hippocampus responsible for storing or creating memories?

I've heard that severe damage to the hippocampus results in the inability to form new memories but still remember old ones. Am I mistaking something? Is the hippocampus responsible for storing ...
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112 views

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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2answers
114 views

What causes dopamine in our body [closed]

I was curious as to know what are the natural causes for the secretion of dopamine in our body. Are there any specific foods that increases the dopamine level? It is said that dopamine are usually ...
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1answer
53 views

Best way to modeling ADHD? [closed]

...with computer models? ( hacking the executive functions of something like this, for making the algorithm more "impulsive", or "inattentive".) ...with animal models? ( using "SHR rat-like", ...
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51 views

Are personality characteristics correlated with certain underlying features of the facial expressions of a person?

For instance is it possible to determine with some degree of accuracy if a person is ranks high in openness to new ideas by some photos of the person?
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1answer
81 views

Prerequisite Request: Neurorobotics [closed]

For the newly emerging field, Neurorobotics. Can one list several highly recommended prerequisite courses prior to entering this field ? Except for classical machine learning, computational ...
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1answer
70 views

Practical Use For a Neuroimager [closed]

You may be aware that neuro-imagers have become much cheaper and many are available with a SDK. I think this will open up a huge gateway for much more intimate human interfaces. However, I am stumped ...
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260 views

What is the exact chemical reaction that gives consciousness? [closed]

Something very bizarre is consciousness, it is our ability to virtually feel things such as emotions and ability to control our thoughts and physical movement. We can also imagine a non-conscious ...
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44 views

Question about the role of the sensory receptors compared to the sensory cortoces

I have two questions regarding the fact that each sensory receptor has its specific ion channels that open in response to a specific stimulus (for example, ion channel that opens when streching for ...
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73 views

Anomalous activation of temporal lobes

The result of wakeful EEG shows persistent activation of temporal lobes - high level of delta and theta waves in the left temporal lobe (3 on the scale from -3 to 3) and slightly lower in the right ...
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1answer
53 views

How does Emotional Freedom Technique (EFT) work?

There is mounting evidence that EFT, a form of therapy which combines cognitive, exposure therapy along with acupuncture point stimulation is effective - EFT for PTSD question What are the biological ...
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Does anybody know a source having multi-electrode (several channels) recorded data of multiple Neurons (I prefer real data not artificial)?

I mean recorded data of multiple Neurons with multi-electrode. I need this data as the input for my experiment.
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to electrophysiologists, where is your electrode?

how do you know where is your electrode in the brain? Whether you're in the soma, axon, its terminal, dendrites - wouldn't it change your signal (and how)? What happens if you are recording from a ...

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