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Questions tagged [neuroscience]

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

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If a specific neuron is present in my brain, will it be present in another person's brain?

For example if I have a neuron cell that fires when I say the letter 'A' and is located at a specific place in my brain, will another person have that cell at the exact same place and will it fire ...
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Looking for text books comparing animal and human brain

Are there any papers or textbooks comparing animal nervous system and human's ? I'm most interested in "higher" animals such as mammals(Chimps, dogs etc.)
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How does the “compare circuit” in the brain work?

For example, the human brain can distinguish different people's voices. In order to distinguish two things, there must be a comparison. My questions: Is there such a comparison circuit inside the ...
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How are the brains of mathematicians different from typical people?

As a biomedical sciences student who also minors in Mathematics, I am often amazed by some of my classmates who really appear to be born for Mathematics (with regards to both their abilities and ...
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How does modulation of the activity of an afferent neuron lead to increase in MEP's?

I was confused reading this: Another example has been described with the primary motor cortex, where the afferent axonal synaptic input (Figure 1) can be facilitated by anodal tDCS (Rahman et ...
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Can an EEG be re-sampled to fix a poor voltage resolution? [migrated]

I’ve made quite a bad mistake in ca. 14 EEG recordings – I recorded at 10uV resolution @ 5000 Hz instead of 0.1 uV @ 500 Hz. I’m conducting an ERP experiment, and the signals of interest are on the ...
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Are there animals with only excitatory neurons?

Are there animals with only excitatory neurons? I am not sure it is possible. Also, maybe excitation/inhibition can become relative? I however will be happy to read your opinion.. For example, are ...
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To what degree does tactile stimulation affect muscle tone? [migrated]

Hard to find the appropriate board for this, but I'm after an answer from a neuro-perspective. Background: I was recently at a Naprapath (in Sweden similar to a chiropractor, with 5 years full time ...
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Do we remember everything [duplicate]

So i have seen a lot of demonstration on youtube about how our memory work....and it goes something on the line that we have a short term memory which holds things temporarily then if we choose to ...
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What is the difference between principal neurons and pyramidal cells?

I am reading Kandel's "Principals of Neural Sciences". There the book sometimes refers to excitatory neurons as principal cells, and sometimes as pyramidal cells. Can anyone tell me the difference? ...
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Averaging a linear or nonlinear function treatment

In a hypothetical PET study, my sample consists of a clinical population which exhibit brain hypermetabolism. I divide my sample into two homogenous groups. One receives a treatment whereas the other ...
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Unilateral vision in split brain subjects

I am just beginning to learn psychology and came across concept of split brain. I was wondering if a person has only left eye working and has their corpus callosum cut, would they be effectively blind ...
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If the optic nerve transmits to both hemispheres, how do split-brain experiments work?

From what I understand, the optic nerve of each eye transmits information to both hemispheres of the brain. This is unlike other sensory and motor information, where (for example) the right hand is ...
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how can I improve my memory? [duplicate]

I am a computer science student and I recently started to self-study. I completed a book on data structures and another on algorithms and I pretty much remember and understand everything that I have ...
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Would non-neural physiological insights be considered to be in the field of neuroscience?

For example, would e.g. SCR (skin conductance response) or hormone level be considered to be "neuroscientific measures" according to general definition of neuroscience?
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Are there rule of thumb regarding sample size when neuroscientific measurements are used?

According to this paper, 10-25 subjects are enough for an fMRI study. However, regarding EEG, it only mentioned in this paper that some "authors concluded that the relatively small sample sizes (...
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What is the human brain made of?

I read an article that stated that the human brain contains 60% fat. Is this fatty tissue structural building material? Or does it just serve as an energy source for the mitochondria? Since our body ...
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Why some papers suggest that losses and gains are coded by the same mechanism while other suggest that distinct circuits anticipate gain and loss?

In this paper, it states that "Consistent with neuroimaging evidence suggesting that distinct circuits anticipate gain and loss,..." However in this paper, it states "..., these results are consistent ...
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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. ...
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Can logic be traced back to neurons?

In our everyday experience, and in both math and philosophy particularly, there exist some binary order in the sense that some statements can be classified as true or false. Does this have a ...
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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 ...