Questions tagged [neuroscience]

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

Filter by
Sorted by
Tagged with
1
vote
1answer
41 views

Why can’t my eyes gaze around at a constant rate?

I’ve wondered about this for quite a long time, but never thought to ask it anywhere: I’m assuming most people know what it’s like to watch a bird flying by, you can steadily concentrate as the bird ...
10
votes
1answer
482 views

What are the neurological differences between varying types of love?

It stands to reason that the biochemical cascade involved when a person experiences love, gives a feeling of well-being and drive. Studies in neuroscience have involved chemicals that are present ...
0
votes
0answers
11 views

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 ...
1
vote
1answer
30 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 ...
-1
votes
0answers
7 views

Do neurons reduce the amount of tryptophan hydroxylase in response to excess serotonin?

If some exogenous factor such as 5-HTP supplementation causes neurons to have a surplus of serotonin, will they reduce the amount of tryptophan hydroxylase so that incoming tryptophan will not be ...
3
votes
1answer
2k views

Euphoria from oxygen deprivation

Plane & Pilot have an article saying: Altitude-chamber tests have shown that as oxygen deprivation increases, some victims experience a sense of increasing well-being, even euphoria, while they’...
3
votes
1answer
48 views

How is Pain Subjective and Different from Nociception

So pain is the sensory feeling that tells indiviual that something bad at some part of the body has happened. What I fail to understand is how is pain subjective? If we have touch receptors in the ...
1
vote
0answers
6 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 ...
3
votes
1answer
98 views

Is pleasure synonymous to positive reinforcement?

I'm thinking about what pleasure is from the perspective of the integrated information theory of consciousness. As I understand it, according to the appraisal theory of emotions, the orientation on ...
2
votes
0answers
8 views

Is there any correlation between conection and function?

I have been searching why different functions exist in even a similar structure cortex. The first reason is differences in cortical neuron density. The neuronal density contour plot (Fig. 1D) reveals ...
2
votes
2answers
55 views

Is it true that mirror neurons can make a man with an amputated arm feel sensation just by looking at someone else's arm, like Ramachandran said?

In this Ted Talk Ramachandran sais that mirror neurons can make a person with an amputated arm feel sensation, is it true? And if so, why doesn't the brain feel a sensation by looking at someone else'...
2
votes
1answer
15 views

What has changed in your brain after electroconvulsive “therapy” (ECT)?

From this Wikipedia article: Electroconvulsive therapy (ECT), formerly known as electroshock therapy, is a psychiatric treatment in which seizures in the brain (without muscular convulsions) are ...
3
votes
2answers
101 views

Is there visual focus during a saccade?

Has anyone succeeded in measuring where the focus is between saccades? Through some kind of nonintrusive brainscan perhaps? I would like to be able to draw with my thought :) (Something similar would ...
-2
votes
0answers
17 views

Increase of Voltage input for action potentials reflection on the human body

I'm currently working on understanding how the conductivity of sodium, potassium and chloride channels are effected with different voltage inputs. I know that the conductivity of these channels are ...
2
votes
0answers
26 views

A new kind of optical illusion?

By accident, I stumbled over this optical illusion: It is not a strong one, and maybe you don't experience it, but I see the size of the circles in the second last row decrease from left to right. I ...
2
votes
2answers
503 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 ...
1
vote
1answer
81 views

Is unconsciousness actually superior to the conscious mind?

In Blindsight by peter watts, the author mentions something called a "neurological bureaucracy", in which the conscious mind has little purpose other than acknowledging what has already been ...
1
vote
1answer
26 views

What is the neurological basis for the association between Bipolar type 2 and autism spectrum disorder (ASD)?

Bipolar disorder type 2 and autism spectrum disorder (ASD) is regularly seen together. What is the neurological explanation for this?
0
votes
0answers
17 views

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 ...
1
vote
0answers
19 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 ...
1
vote
1answer
18 views

What are the factors that make the membrane more permeable to Potassium ions than Sodium or Chloride (or any other ions)?

I'm just into my first week of Neuroscience and reading about membrane/action potential. It is my understanding that when the membrane potential changes, it is more K+ ions move across the membrane ...
4
votes
1answer
63 views

What degree of control do we have on eye movements?

When something "new" and "interesting" enters our visual field it can usually happen that our eyes move toward the new target. How "intentional" and "controllable&...
2
votes
0answers
9 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 ...
0
votes
0answers
20 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....
0
votes
0answers
16 views

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 ...
5
votes
1answer
59 views

Are there synapses on other neuron terminals in human brain like in Aplysia

I am referring to Eric Kandel and his experiment on Aplysia where he shows that synapses between a pair of neurons can be modulated by means of a third neuron that synapses onto the terminals of the ...
3
votes
1answer
79 views

Neurological disorders affecting body language

Are there neurological disorders which do not affect the emotions per se but affect how they are expressed by the body? Say, normally positive emotions are associated with the tips of the lips facing ...
1
vote
0answers
24 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?
1
vote
1answer
47 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 ...
1
vote
0answers
14 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 ...
5
votes
2answers
362 views

Can LSD connect sensory regions in the brain?

How is it possible that after using LSD you can hear sounds and see colors? I have my own experience with this phenomenon. When I´m lying totally relaxed in bed and suddenly a door is closed loudly, I ...
1
vote
1answer
21 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 ...
2
votes
1answer
44 views

Can two neurons stimulate each other?

Is it possible that two neurons stimulate each other in an everlasting two neuron circuit?
0
votes
0answers
17 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 ...
2
votes
0answers
144 views

Is adrenaline rush the real cause behind feelings of “electricity”, “fire”, “heat” or “burning all over” reported in certain religious groups? [duplicate]

Doing my own independent research, I've noticed a clear pattern of religious people reporting feelings and sensations that they usually describe with expressions such as "waves of electricity&...
2
votes
1answer
18 views

Difference between conditioned freezing, shock sensitization to startle and conditioned fear potentiation to startle?

I am reading paper-listed below-that talks about three terms, Conditioned freezing; Shock sensitization to startle; Conditioned fear potentiation to startle. I understand that conditioned freezing ...
3
votes
0answers
21 views

Neuron specialization in the Visual System

Can someone point me to a good resource to explain how neurons in the visual system become sensitive to visual features? I understand that specific neurons fire for things like direction of motion, ...
1
vote
1answer
50 views

Neurological explanation for differences in what motivates runners?

I have noticed differences between how my friends and I are motivated with regards to exercise, and would like to better understand what is influencing this difference psychologically. Personally, ...
1
vote
0answers
66 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 ...
1
vote
0answers
9 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 ...
18
votes
4answers
620 views

Is serotonin conclusively linked to depression?

Some highlights from the article "The Depressing News about Anti-Depressants": ever since a seminal study in 1998, whose findings were reinforced by landmark research in The Journal of the ...
1
vote
1answer
64 views

What information does the connectome actually contain?

I am not a brain scientist but the following question seems reasonable to me. Prof. Sebastian Seung has given a TED talk named "I Am My Connectome". If I understand correctly, connectome is ...
1
vote
0answers
46 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 ...
4
votes
1answer
62 views

Do people who experience heautoscopy become unable to see their reflected image in a mirror?

I understand that people who experience autoscopy can see their body image outside them without a mirror. I had read many years back in a paper that people who experience the inverse phenomenon called ...
3
votes
0answers
138 views

Is the fight or flight response considered voluntarily or involuntarily?

I look in my rearview and see someone feet from me still speeding up and my heart rate feels like it doubles. It stayed like that for an hour. Had troubles concentrating and working well into the ...
0
votes
2answers
77 views

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 ...
2
votes
2answers
44 views

Why does the Elaboration Likelihood Model not account for truthfulness of the message?

This is a sample problem with the answer I am stuck on: Question: According to the elaboration likelihood model, which of the following does NOT predict whether a message will be persuasive? A....
7
votes
2answers
349 views

The computer model of the brain

I am a computer programmer or computer engineer, and am interested in comparing the brain to a classical computer in some way. How well does this comparison hold up? This is a general introduction ...
5
votes
1answer
59 views

Why is the occipital lobe behind instead of in front?

These are regions of our brain: Our eyes are in front below our forehead, however, the visual area Occipital Lobe is behind. Are there any biological reasons for this? why shouldn't Occipital Lobe be ...
1
vote
0answers
26 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 ...

1
2 3 4 5
17