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Questions tagged [neuroscience]

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

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2answers
36 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 ...
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1answer
17 views

What is receptor tonic activation?

From Long-term administration of the dopamine D3/2 receptor agonist pramipexole increases dopamine and serotonin neurotransmission in the male rat forebrain: The sensitivity of postsynaptic D2 ...
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1answer
38 views

Strange synchronized brain pulses on EEG using OpenBCI Cyton board

I recently received an Open BCI headset, and have been experimenting with it. One interesting is my brain gives off very regular pulses. My wife tested the headset too, and she also had these pulses....
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0answers
10 views

Triptans and SSRIs

When talking about triptans used for migraines such as Zolimitriptan, such drugs are selective serotonin receptor agonists. SSRIs, as their function states, are Selective Serotonin Reuptake ...
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1answer
2k views

How do congenitally deaf and mute people think?

If a person is born deaf and dumb, how can they think? In "what language" do these people think? Do they develop their own inner language? Unfortunately I have not found an answer, and I actually ...
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1answer
49 views

Mechanism for deleting old memories

Do we have any mechanism for deleting neuronal connections? That is, if I learn a better version for doing something, I assume the brain will create a new neuronal connection, and we will use this ...
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1answer
14 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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1answer
40 views

does the fact that Psychology Today take neurolinguistic programming seriously delegitimize the magazine?

According to Wikipedia, Neurolinguistic Programming is a pseudoscience and dismissed by most experts. However, Psychology Today, a popular magazine, appears to not thoroughly reject it. Does this fact ...
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0answers
35 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
16 views

How many synapses are there in a typical efferent somatic nervous pathway?

In Wikipedia page, it explains: The basic route of nerve signals within the efferent somatic nervous system involves a sequence that begins in the upper cell bodies of motor neurons (upper motor ...
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1answer
344 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 ...
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2answers
154 views

Good neuroscience research blogs

In the field of AI research there are really good research blogs that regularly analyse methods and review papers. Examples that come to mind are: BAIR blog: The Berkeley AI Research blog Distill: an ...
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13 views

Does every neuron has a specific neurotransmitters for receiving and sending?

I'm new to this field so if I have basic mistakes please correct me. Iv'e read that each neuron can manufacture just 1-2 neurotransmitters, and from what I understand only these are released from his ...
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2answers
148 views

What exactly happens to brain during anesthesia

While anesthesia is given to a patient what changes in the chemistry of brain happens. Which part of the brain is affected by the medicine which causes anesthetic effects. Can anesthesia be ...
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4answers
2k views

What are current neuronal explanations and models of 'consciousness'?

I would like to understand more about consciousness from a neuroscientific perspective. I have a limited understanding of it in the philosophical/psychological sense through lectures. Although it is ...
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0answers
21 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
26 views

What happens neurologically and chemically when an individual is confused?

For example, trying to understand a mathematical problem and its solution, or abstract reasoning, but in the process get lost even have no clear idea of what part is 'not understood'
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1answer
53 views

What is the state of the art research of the conscienceness level for high-level cognitive activity?

Everybody knows situations where activities requiring concentration and high level consciousness can over time become a "background" task. For example: you read a text aloud but think about other ...
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2answers
93 views

Would you classify confusion as an emotion?

I'm writing a short essay on emotions and I stumbled upon a few references of confusion being an emotion but no solid exclusive research results focusing on confusion as an emotion. If it isn't, what ...
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12 views

Why do people have eureka moments of revelation while taking a shower? [duplicate]

What kind of mechanisms are at work to cause creative thinking or revelations during auto-pilot tasks like taking a shower or teeth brushing? This describes it: Incubation period - we are working on ...
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0answers
10 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
17 views

When did dyslexia emerge as a neurological difference?

I am wondering if dyslexics have one common ancestor? And when did dyslexia emerge as a neurological difference?
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30 views

Neuralink in depression treatment

In this article there is a statement that Neuralink can help people with Parkinson’s disease, epilepsy, and depression by promptly sending electric pulses into the areas responsible for their ...
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1answer
30 views

How do we know brain Is not involved in knee reflex?

How do we know that compressing the knee generates a feedback signal that makes the leg extend even before the signal reach the brain?
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1answer
73 views

Are normal external stimuli still processed by the brain during a hallucination?

I was wondering if hallucinations could radically override real external stimuli. After all every sensory organ responds to external stimuli, but when a hallucination occurs, I suppose, the external ...
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1answer
51 views

Are neurons the wrong shape to model neural networks?

Looking at neural networks, each node can be described as a neuron with either several long input wires, or several long output wires. A neuron, however, has many short input wires (dendrites) and a ...
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1answer
57 views

Mind uploading & its constituents: Theoretically possible?

Is it possible to remove the mind from the rest of the body and have it "alive" somehow as in its former known form? Mind uploading would be computerizing a mind to preserve data, memories and etc. ...
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2answers
72 views

Is it possible to develop dementia by eating bone marrow?

A psychiatrist once told me to avoid eating bone marrow because it could contain prions that could cause dementia. However, I haven't been able to find any studies that confirm this. Could this happen?...
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Supplementary Motor Area or Juxtapositional Lobule Cortex

Harvard-Oxford Cortical Structural Atlas now calls the 'Supplementary Motor Area' the 'Juxtapositional Lobule Cortex (formerly Supplementary Motor Cortex)'. I've looked for papers that explain the ...
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0answers
84 views

How do ligands bind to and release from receptors? [closed]

I'm wondering exactly how ligands bind to and release from receptors. Until recently I presumed ligands were attracted to receptors through electrostatic forces with no chemical interaction involved, ...
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1answer
34 views

Find volume of lesion mask

I have drawn a lesion mask using FSLeyes on a T1-weighted image for MS patients. Is there tool to get the lesion volume from the mask?
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0answers
53 views

What activity causes the highest level of brain-activity?

I expect balancing on a tightrope and juggling apples while listening to Mozart would trigger more brain activity than say playing chess, and while there are many ways to measure/define brain activity,...
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1answer
115 views

Can the neurological damage done by alcohol be reversed?

I read online that heavy alcohol consumption can lead to neurological damage, specifically in areas that affect your cognitive performance and memory but what I couldn’t find is if the damage can be ...
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1answer
33 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, ...
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1answer
58 views

Publicly accessible database for the Autistic brain under MRI and/or fMRI

American neuroscientist James H. Fallon released many of the images of MRIs from diagnosed psychopaths and was able to identify a pattern when compared to the average individual. Is there a database ...
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1answer
81 views

Comorbidity of Neurodevelopmental Disorders between them and Obsessive Compulsive Disorder and Obsessive Compulsive Personality Disorder

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3416662/ OCD being an anxiety disorder and OCPD being a personality disorder it is entirely possible that these two can be present on the same patient. ...
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1answer
75 views

Brain Dynamics at the Edge of Chaos

I've repeatedly come across the claim that brain dynamics operate near the edge of chaos, but usually they do not give any useful sources on how we actually know this. I'm also aware that there are ...
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0answers
114 views

Neurodevelopmental Disorders, Cognitive Function and Causing someone to Learn

Children may elicit, either through active engagement or some feature of their personality or appearance, a response from their environment that might protect them from deprivation-related risk either ...
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3answers
734 views

Why does a neuron choose to connect to another?

I have been reading about neuron creation, guidance cues and all sorts of highly complex mechanisms used to allow one neuron axon to extend or connect - but to what end? Why does one neuron end up ...
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1answer
44 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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1answer
64 views

Myelin and Myelin Sheath

https://medlineplus.gov/ency/article/002261.htm Why is Myelin used as a term to mean the Myelin Sheath as opposed to the proper term? It is apparent to me that Myelin is the substance itself ...
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0answers
19 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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1answer
94 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 ...
5
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1answer
84 views

How can higher concepts get unrolled with upward and feedback connections differing?

In the neocortex, input patterns are compressed hierarchically. Sensory inputs in the lower levels are combined by higher levels to form abstract concepts. However, there are even more feedback ...
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0answers
27 views

How neurons and mind can be related? [duplicate]

As we know neurons are matter . But mind is not matter .You can see a brain but can't see a mind . Why from outside brain is full neurons , but when it's inside you , it starts to create mind, visions,...
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0answers
59 views

The same neuron sometimes released different neurotransmitters, so how does this affect our interpretation of computational models?

Most studies I see compare firing rate with some observed variable (stimuli or behavior). However, they treat all spikes the same. But neurons sometimes release different neurotransmitters depending ...
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1answer
34 views

Why do solutions to problems feel simple (or obvious) once we are given them?

I was watching a video about one of the hardest maths problems even examined in the IMO (International Math Olympiad). And once I was walked through the solution, it seemed so obvious to me, as I'm ...
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2answers
72 views

William James “Principles of Psychology” and Brain Plasticity

I am reading William James' "Principles of Psychology". It is clear in his research that he was acutely aware of brain plasticity and the limited capacity for a precise "schema" (ie. static brain map)...
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2answers
1k views

How to filter noise in EEG data

I am a computer science student and I'm doing something for a psychology professor. We have EEG data from an experiment where a person was shown 140 images for 2 seconds each. We placed 64 electrodes ...
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0answers
18 views

Bipolar Disorder Patient data

Can someone provide me with an electrocardiogram signal of a bipolar patient? I'd like to have a trace obtained in an intermittent period, i.e., when the patient is not experiencing a depressed or ...