Questions tagged [neuroscience]

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

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16 views

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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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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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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Progressing Emotional Regulation through the 4 stages of competence

As you activate the parasympathetic nervous system through meditation your overall emotional regulation drastically improves. But as you activate the PNS in this aspect are you accelerating your ...
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30 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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39 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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17 views

Question about the left-brain interpreter characteristic

I got to know the concept that the left hemisphere of the brain has the ability to infer conclsions about the world, even if the information on which it relays is not necessarily valid, from ...
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18 views

Which part of the brain “lights up” most consistently when someone is watching cartoons?

I have a vague memory of learning that there's a consistent part of the brain that "lights up" when someone is looking at a cartoon rendering rather than a photo. Which region would this be?
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Why are the sensations from different senses perceived joint? [duplicate]

Why are all the sensations from different senses all perceived joint and not everyone separately? Obviously, all the sensations are in the same physical classical system, if not, when we die, ...
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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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Surgical implications of a fallacy in infering histology and morphology through a 1.5 Tesla MRI of a brainstem tumor

What would the surgical implications of a fallacy in infering histology and morphology of a brainstem tumour be? I am interested mainly in the sequelae in the sensory, motor and cognitive functions. ...
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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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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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26 views

Do weak spatial memory and good creative thinking are related?

Is there a correlation between weak spatial memory and good creative thinking? This seems to be contradictory, because if you look at the history, world famous chess player had good memory.Can ...
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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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25 views

Has a psychology of addiction been developed as a theory?

I am interested in the Alcoholic's Anonymous approach to treating addiction to alcohol and I am wondering if the significant advances in both psychology and the biological study of physiology have ...
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13 views

In extremely stressful or high-pressure situations, how can people remain calm and complete the task at hand proficiently?

Interested to see studies completed regarding the question asked. Considering the question, there are two situations in mind. Where the particular stressful event is of a very short timespan, ...
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True activity maps of the brain

In a video on the effects of music on the brain Oliver Sack's brain is shown when listening to Bach as opposed to listening to Beethoven: Jokes are made from the off: "Sorry, Beethoven, there's not ...
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65 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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22 views

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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25 views

Resources for learning Advanced Neuroscience

I am very interested in learning at an high level: How neurons send signals to each other Activation sites of neurons The exact process of signal transmission Dopamine and other neurotransmitters ...
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38 views

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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recommended textbooks for the basics of neuroscience

should I read an a-level biology textbook to grasp the basic of neuroscience to be ready for uni or are there better textbooks just for the very basics
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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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Density maps of neurotransmitter systems

Are there density maps for specific neurotransmitters that I can have a look at? By density map I mean a map that indicates how the somata of X-releasing neurons are distributed how the somata of X-...
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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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what causes an action potential to propagate exactly and why should it propagate?

Hello I am taking a neurophysiology course and learned about the action potential and that it propagates in one direction from axon hillock down along the axon. I understand that action potential is ...
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21 views

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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39 views

Why are there few studies in the literature regarding human's pheromones?

Pheromones are thought to be the biological underpinning of the social behaviour. They have been extensively studied in animals. Pheromones are chemical factors that trigger a social response in ...
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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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110 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
109 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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48 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
80 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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1answer
217 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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1answer
41 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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1answer
63 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
50 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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