Questions tagged [neuroscience]
For questions on the structure and function of the nervous system.
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Alter or ego at heart of the people or what is the state as such of being?
Mostly concerned with knowing the issues that I have with psychology, I would like to know the answer of this basic question that always gives me no real interpretation as such.
The understanding of ...
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Nociceptor (possible threat signal)
I've read this on Wikipedia:
"A nociceptor is a sensory neuron that responds to damaging or potentially damaging stimuli by sending “possible threat” signals to the spinal cord and the brain."
What ...
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1answer
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Can logic be traced back to neurons?
In our everyday experience, and in both maths and philosophy particularly, there exist some binary order in the sense that some statements are true or false.
Is it possible to correlate what we call ...
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Li2CO3 and Body [closed]
How is $Li_2CO_3$ broken down in body into lithium and carbonate? I thought there was an enzyme that does it or is it hydrolysis in the blood?
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1answer
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Reading material for graduate neuroscience program
I have just finished reading 'Neuroscience: Exploring the Brain' 3rd Edition, Bear et al. I am also planning on pursuing a neuroscience degree beginning fall 2019 and was wondering what other reading ...
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Can a CT scan have advserse cognitive effects on the brain? [closed]
If the normal Xrays scans, despite the low amount of radiation (equivalent to a few hours of background radiation, can be sufficient to cause a burning sensation, then I wonder if the much higher dose ...
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1answer
42 views
Is Paul's Churchland claim about qualia supported by science?
Knowledge argument:
Mary is a brilliant scientist who is, for whatever reason, forced to investigate the world from a black and white room via a black and white television monitor. She specializes ...
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1answer
26 views
What does “they tend within and between classes” mean in 'The Irreducible Mind'?
I am a philosophy student but I'm also interested in philosophy of mind, a field that overlaps issues in psychology and neuroscience these days. This passage is taken from a similar multidisciplinary ...
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1answer
39 views
Body temperature increasing when trying to solve difficult problems
[ I am unsure if this is the correct site to ask this question ]
I am a HS student, currently studying IT and personally I focus on the field of software (programming) and of course where there is ...
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1answer
41 views
How do we imagine? How do images have qualia?
After reading a bit about qualia and hard problem of consiousness, I came up to theoretical solution. The reason why we have this problem is because we can imagine. We can imagine an object visible to ...
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How are tactile pleasure and pain differentiated in the somatosensory cortex?
A recent question here asked about (mostly) how pain and pleasure are differentiated in pathways involving reward/aversion cues. But there was some confusion as to what the question really wanted to ...
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2answers
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Can addiction develop to the absence of a normally present negative stimulus?
I am wondering, can someone become addicted to the absence or the removal of a negative stimulus? Normally, addiction is associated with pleasure-inducing drugs, like opiates and amphetamines as ...
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1answer
30 views
Is there a region of the brain that mediates pain in a manner reminiscent of the mesolimbic pathway?
The mesolimbic dopamine pathway is a common neural pathway upon which rewards converge AKA the pleasure pathway.
So I am trying to find a comparable pathway in the brain for pain -- is there such a ...
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Will studying formal logic improves logical reasoning?
Reason for asking question:
I am looking to see if there is any good empirical evidence or study that shows or suggests that studying former logic or maybe informal logic would actually improve ...
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1answer
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How is the relationship between hypothalamus and homeostasis & fear and how does it evolve across human development stages?
This is my claim, or what I [mis?]understood:
Hypothalamus is well-known for its role in homeostasis (self-regulation including, but not limited to, temperature/energy) and also reactions / stimuli ...
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Is there neuroanatomical evidence for Groves & Thompson dual-process theory of habituation and sensitization?
The introductory textbook of Domjean mentions some empirical evidence for
Groves & Thompson (1970) dual-process theory of habituation and sensitization.
Presented a dual-process theory of ...
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1answer
42 views
Cognitive Effects of studying for the LSAT?
Is this study/article scientifically valid.
http://news.berkeley.edu/2012/08/22/intense-prep-for-law-school-admissions-test-alters-brain-structure/
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1answer
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What happens in the brain that allows access to a previous unavailable memory?
What happens in the brain that allows you access to a memory previous unavailable?
For example I forgot the name of someone I've known for years. Two weeks later, without notice, "Diana" popped up.
...
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2answers
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How addictive is Heroine?
I keep hearing that "*Heroine is so addictive the very first dose is enough to get you hooked on it*".
Personally, I have a hard time believing any substance could do that to you.
But I could believe ...
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2answers
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The relationship on deja vu, dream and retrocausality?
In quantum physics, there is a topic on something called retrocausality, which addresses whether the future can affect the present and whether the present can affect the past.
In terms of deja vu and ...
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Why does “name it to tame it” work from an evolutionary psychology perspective?
There seems to exist a phenomenon where being aware of one's feelings gives us power over them. I have seen this in everyday life, but the strongest piece of evidence I've seen is from a talk by UCLA ...
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1answer
29 views
Kinetic synesthesia evoked by abstract thoughts?
Can the experience of movement when mentally visualizing the network/structure of the code of a complex application, and the information that flows through the network as a programmer be a kind of ...
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2answers
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Why does the graph have a logarithmic shape? That is, why does the increase rate in %/hr decrease over time?
The graph attached has a logarithmic line, but I can't figure out why.
Does anyone have any potential justifications with respect to neuroscience?
Thanks!
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How convincing is the evidence that LTP underlies memory formation?
(Yeah, I'm aware this question probably is rather close to being opinion based, but I'll ask anyway.)
A (widely cited) 2004 review by Lynch was somewhat reserved on the topic, noting that some ...
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1answer
32 views
Why do we see shadows in the following black-and-white optical illusion?
How does neuroscience explain the following optical illusion? Look at tiles. You will see spots of shadow near all corners. The shadow will be missing from some corners very near the center of your ...
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0answers
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fMRI datasets for emotion states
Would there be any open fMRI datasets available that specifically analyse a subjects emotional state? The objective is to apply deep learning methods to categorise subjects emotional state based on ...
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Why are there still left handed people?
About 90% of all people are right handed. About 10% of people are left handed. So why has left handedness persisted for so long throughout human evolution? Why does it stick around? What are the best ...
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1answer
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Are emotions local or purely global? Can there be two inconsistent emotions in different parts of the brain?
I am NOT asking whether people can experience two inconsistent emotions "at the same time". Clearly this can happen, e.g. when people have "mixed feelings" about something.
What I'm interested in, is ...
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1answer
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Why is the distribution of mean firing rates assumed to be Gaussian?
I'm reading "Principles of Neural Information Theory" by James V Stone and in section 3.5 he says that the distribution of firing rates (of a single neuron) is generally assumed to be approximately ...
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2answers
76 views
Converting human's memory into digital data
I am wondering whether converting someone's memory into digital data is possible or not. It may sound ridiculous. However, if chance is not 0 then what kind of studies might be used? What kind of ...
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1answer
41 views
Could we develop a notion of conceivability that would allow us to imagine impossible/inconsistent/illogical things?
There are things that we cannot imagine because they are impossible (like a solution to Russell's set theory, since it is impossible to reach that solution because it is illogical.)
Some months ago, ...
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1answer
63 views
How is the brain cooled?
I remember[ed] reading a story on a brain-inspired integrated mechanism for energy-delivery and cooling in (experimental) new computer chips:
The human brain packs phenomenal computing power into a ...
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1answer
57 views
Performance of a damaged brain
I have heard stories/reports that if a certain part of the brain (taking care of certain functions) is damaged other parts take over the function of the damaged part.
Intuitively this could mean 2 ...
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1answer
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Why is a cross-dominant/ambidextrous brain more susceptible to mental illness?
The left and right hemispheres of the brain are connected by a bundle of fibers called the corpus callosum. Ambidextrous, left handers and cross-dominant people have symmetrical brains as opposed to ...
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What might be the daily experience of someone who does not have an orientation association area?
The orientation association area gives us a sense of our body in time and space.
What would it be like without this part of the brain assuming everything else works normally?
Can the brain separate ...
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0answers
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Are facial muscles activated in verbal thought? [duplicate]
In this video, Dr Russel Barkley states the following:
I can put electrodes all over your face and I can ask you to cite your
Canadian pledge of allegiance in your mind. You still move your face.
...
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1answer
25 views
Human vision detection of faint blinking or moving point of light, guidelines for sensitivity versus frequency
This question is in the neurology/neuroscience rather than the psychology aspect of this site.
I'd like to check the limits of visibility of a (presumably green) LED at large (kilometer) distance, ...
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0answers
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Can tapering reduce the risk of sedative kindling and brain damage?
So we know that repeated withdrawal from GABAeric substances like alcohol and benzodiazepines will cause kindling and worsen future withdrawal symptoms. Also, it appears that withdrawal from alcohol ...
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1answer
161 views
What would happen to the human brain after running out of memory?
According to this answer humans have enough memory to store 300 years of TV shows. However, of course, it is disputable, as storage system would be completely different from storing TV shows (videos) ...
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1answer
495 views
What is the name of the bias that associate a thing as good because it has a relation to another good thing?
A customer buys X from "brand A" and has positive experience with it. "Brand A" also sells Y. Now the customer things it is good to buy Y because of his/her positive experience with buying X from ...
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2answers
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Parallel arrangement of capacitor and resistor in leaky integrate-and-fire model
I have read from several sources that in the leaky integrate-and-fire model of a single neuron resistor (leakage) and capacitor (membrane potential) are arranged in parallel. Look at the following RC ...
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1answer
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What extent is non linear dynamics and chaos helpful to study brain function?
Recently I've started reading dynamical systems in neuroscience by izhikevich and was fascinated by the subject. I would like to pursue PhD in computational neuroscience after my masters. Is it worth ...
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Recovering P300 information from raw EEG data [duplicate]
I am trying to recover P300 information from raw EEG data. I have information from 23 electrodes in my EEG cap and have several files form which I will need to recover this information. However, I am ...
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1answer
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What are the neurological similarities between humans and primates?
I don't know exactly what primate specie is considered to be out ancestor. But the next question regards them.
Assuming that in the beginning *we considered true the remnants of many trial & ...
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1answer
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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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1answer
85 views
Is there any evidence for the cell assembly?
What is a cell assembly?
In Principles of Neural Science Eric Kandel, and colleagues wrote:
After this strengthening has occurred, a group of three neurons that are strongly coupled by excitatory ...
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0answers
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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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1answer
101 views
What is the neurophysiology of a thought?
PURPOSE
1) To find out if there is evidence in favor of one of Hebb's claim. In is book "The Organization of Behavior" he claimed that cell assemblies are the physiological foundation of thought. ...
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1answer
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What does “diffuse slowing” mean in the context of EEG and Alzheimer's?
Horvath et al. (2018) mention that:
The disappearance of posterior dominant alpha rhythm and the diffuse
slowing in AD (alzheimer disease) are easily detectable EEG signs for the experienced
...
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2answers
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Is there a mental condition that makes people unconditionally gullible?
The last several years in my country there has been a string of fraud that involves people, claiming to be police, asking citizens to contribute large sums of money to aid "police investigation".
The ...
