Questions tagged [neuroscience]

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

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62 views

What can coma patients report about their experiences - if anything?

Coma is correlated to a significant inactivity of the cerebral cortex and the reticular activating system, while other parts of the brain - e.g. the limbic system - might still show considerable ...
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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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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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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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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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31 views

Principles of grouping neurons

This is an overview question. I wonder which principles of grouping neurons into higher units are there, and which principles I have overseen. neurotransmitter systems: all neurons that release or ...
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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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345 views

Can two neurons in the brain be connected more than once?

Can two given neurons in the human brain can be directly connected more than once, either mutually or in the same or direction? Also, can the same neuron have transitive connections to itself (in ...
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64 views

How many different synapses can an axon form? How do they differ?

It is estimated that the in the human brain there are about 100 billion neurons. With thousands of synapses for each of them, the total number of synapses is over 100 trillion. Yet each neuron has ...
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37 views

Functional vs. synaptic connectivity

I used to believe that connectivity is nothing but synaptic connectivity and thus a long-term concept: synapses grow and synaptic strengths change on rather large time scales. But recently I found ...
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32 views

Neural correlates of pleasantness and unpleasantness

There are some basic cases of stimuli that are typically experienced either as pleasant or unpleasant, e.g. the major third as opposed to the tritone. Assuming that there are different processes ...
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37 views

Neurotransmitters by neuron types

I'm looking for a concise overview table of all types of neurons (whose number is at least in the hundreds) indicating which neurotransmitters they use pre- and post-synaptically (of which there are ...
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Predicting the individual effects of psychotropic drugs

https://www.ncbi.nlm.nih.gov/m/pubmed/23796468/ I have searched the national library of medicine but I could not find any papers about predicting both the therapeutic and adverse effects on the ...
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Are memories stored as patterns of chemicals/emotions?

Lately, I (as someone with no experience or prior knowledge in the topic) have been thinking about...thinking. The part that intrigues me the most is memory. As a computer-y type person, I tend to ...
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63 views

How does our brain sense the passage of time?

How does our brain sense the passage of time? What is the mechanism? I am not asking here about memory. I have searched about it on the internet. https://www.scientificamerican.com/article/your-brain-...
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54 views

What is the brain doing when someone tries to solve a physics or math problem that they can’t make any progress on?

Is their brain actually working or is it day dreaming and not functioning if they’re staring at a physics problem and not capable of making any progress on it? When a student who can’t come up with ...
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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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105 views

Is what psychologists define as subconsciousness proven in neuroscience and can the psychological subconsciousness be visualized by neuroscientists?

We read phrases like The subconsciousness makes up 90% of our brain. The subconsciousness makes up 95% of our brain. The subconsciousness can be influenced by hypnosis. I have yet to see a study in ...
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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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22 views

Is the approximation of the Medial Frontal Gyrus in the region of the Dorsolateral Prefrontal Cortex?

I'm wondering if the MFG is located in the region considered the DLPFC?
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27 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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51 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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3k 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
60 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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151 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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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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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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29 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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176 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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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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173 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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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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34 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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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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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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“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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65 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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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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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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65 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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65 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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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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85 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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44 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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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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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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59 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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101 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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