Questions tagged [neuroscience]
For questions on the structure and function of the nervous system.
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How can we know which types of brainwaves is dominated at particular state?
I am a freshman at Neuroscience.
As I learned there are 5 types of brainwaves: Gamma, Beta, Alpha, Theta and Delta, each types have a different frequency range.
So my question is when onserving a ...
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Hit My Forehead Really Hard And Can't Think Straight Now [on hold]
So basically about a week ago my forehead collided with the door of the cupboard and it caused the door to vibrate and damage my forehead.There wasn't any visible damage on my forehead but it hit ...
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101 views
Is there a neurological reason why women do not occupy top positions in the chess ranking?
I want to turn arround this question posted on chess exchange where sociological arguments are given to explain why only two of the world's top 100 chess players are women.
Are there neurological ...
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33 views
Is the hippocampus responsible for storing or creating memories?
I've heard that severe damage to the hippocampus results in the inability to form new memories but still remember old ones. Am I mistaking something? Is the hippocampus responsible for storing ...
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58 views
How much we should trust our brain
Our brain is trained from culture and environment that we're raised in. So we don't control what we're learning until we get to teenage. But by that time our behaviour is already been shaped. This ...
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2answers
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Are personality characteristics correlated with certain underlying features of the facial expressions of a person?
For instance is it possible to determine with some degree of accuracy if a person is ranks high in openness to new ideas by some photos of the person?
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How common is it to include unmedicated patients in first episode psychosis (or any type of psychosis) studies?
Is anyone familiar with this open access study?
Radua, J., Borgwardt, S., Crescini, A., Mataix-Cols, D., Meyer-Lindenberg, A., McGuire, P. K., & Fusar-Poli, P. (2012). Multimodal meta-analysis of ...
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34 views
What's the pathfinding algorithm the human brain uses?
I was trying to build a software simulation of people using different pathways in a city to get from point A to point B. I do know the Dijkstra's algorithm and the A* algorithm, but what they do is to ...
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1answer
74 views
Do psychiatrists and researchers themselves don't have an idea how antidepressants work?
This question may be seen as an extension of my previous question, here. I was talking to a person online where s/he mentioned that psychiatrists themselves don't have an idea as to how SSRIs work. ...
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Has there been any neuroscientific study of polydactyly?
I have been reading about polydactyly and found that surgery is only necessary in certain cases. It depends on way the extra digit on the hand or foot is attached.
For example, central polydactyly (...
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1answer
39 views
What is a sensorimotor connection in plain English?
I have googled, but haven't found any definition simple enough that I understand. I would appreciate it if you could give me an example as well!
Thanks,
Jack
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Supposed 'brain training' [duplicate]
The term brain training is nothing new, however how effective is the 'N-back' method, does this work scientifically speaking?
There are mixed reviews on this:
one claiming it works
https://www....
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48 views
Anomalous activation of temporal lobes
The result of wakeful EEG shows persistent activation of temporal lobes - high level of delta and theta waves in the left temporal lobe (3 on the scale from -3 to 3) and slightly lower in the right ...
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2answers
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Are the images in our heads physical?
I can think of a banana in my mind, and I can see it, it's there, but it's not really there at the same time. It doesn't feel physical, but for me to be able to see it, it must be physical, right? Are ...
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6 views
How to analyze EDA data collected from mindware?
How to pair event and skin conductance response of data from mindware? Does it need to downsampling? Thanks.
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1answer
49 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 ...
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1answer
98 views
What sources of randomness does the brain use for sampling?
As an applied mathematician, I have a growing interest in the mechanisms for uncertainty representation and computation in the human brain. In fact, I recently compiled a list of papers on this ...
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40 views
Are there any psychological studies of thirst following food that account for SFO-Nos1 activity?
Some studies up to 2015 surprising found that salty vs. non-salty food doesn't make much difference to thirst. E.g. a 2015 study found that:
However, according to Prof. Leshem, despite our gut ...
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1answer
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Is doubting a claim more taxing in terms of energy spent by the brain?
I was at a conference some time ago in a university near my city, a Neurologist was part of the various talks held there, and in his words:
"There is a, let's call it Neuro-Psychologic ...
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Is there a structural difference between Nerve cells in the Somatic and Autonomic Nervous Systems
Do the actual nerve cells in the Somatic and Autonomic Nervous Systems have a different structure or chemical make up or are they the same thing just separate systems?
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1answer
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Assuming a neuron does not reach activation, what is the rate of repolarization in the absence of new stimulus?
How long does it take for a neuron to return to it's resting state, due to absence of further stimulus?
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1answer
91 views
Is there a mindfulness meditation technique that tends to produce gamma rhythms in the brain (and not just the alpha frequencies that are typical)?
This is a follow up to a paper (^) that was cited in a response to one of my past questions here. It was found that experienced Buddhist monks generate a substantial increase in gamma waves on demand ...
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Can signals from the prefrontal cortex alone trigger a readiness potential in the pre-supplementary motor area?
Background
In Haggard, Patrick. "Human volition: towards a neuroscience of will." Nature Reviews Neuroscience 9.12 (2008): 934., the author states in the caption of Figure 1 (pg. 4):
The ...
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1answer
113 views
Clear definition of ego
Is there a clear definition of the ego which is accepted by the neuroscientific community?
I have seen a previous post (What do id, ego and super-ego exactly mean?) but this definition is for the ...
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1answer
48 views
Are there ways to accelerate the recovery from depression via novel pharmacological antidepressants?
Are there any scientists making substantial progress in the development of far more effective antidepressants? Are there any groups of people interested in developing antidepressants based on genetic ...
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4answers
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Difference between Psychology & Neuroscience in lay man terms?
I am electronics engineer by profession
But i am confused in difference between Psychology & Neuroscience? Please explain in lay man terms?
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Which neurodevelopmental disorders constitute learning disabilities?
I am actually looking at DSM-5 but I cannot find any exhaustive or otherwise comprehensive list or explicit association of which neurodevelopmental disorders are also learning disabilities.
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Is there any empirical support to “chemical imbalance theory” for mental illness?
Has it been proved by measurement of chemicals in the brain that psychiatric disorders have either their origin or continuance due to chemical imbalance in the brain? I saw the documentary Diagnostic &...
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1answer
49 views
Is the visual cortex of a newborn baby immediately capable of object detection or is this skill learned over time, and if so, how?
Is the visual cortex of newborn babies right off the bat capable of making sense of raw visual data, for instance, converting the constant stream of raw RGB images perceived by the eyes into a ...
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2answers
50 views
Simulating Hudgkin Huxley neural network
I'm starting work on a computational neuroscience project where I want to create my own model of a spiking Hodgkin-Huxley neuron and connect many instances (about 400) of this model through synapses. ...
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1answer
22 views
Voltage Clamp Method
I don't understand some points of the voltage clamp method. In the resting state, Command voltage and membrane potential are both -65mv. If the command voltage increases to 0mv, current is injected ...
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1answer
53 views
How do we know what colors animals perceive?
Humans have three kinds of photoreceptors corresponding to different wavelength-spectra:
If say photons with wavelengths of around 530 nanometers hit the human retina, this would lead to the ...
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0answers
40 views
What are the neuroscience research findings on the importance of breaks in cognitive function and specifically learning?
When I say breaks I mean breaks between periods of the same course, breaks between two distinct courses, single days of, weekends, couple days of, few days of, longer periods of holidays of duration ...
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free will studies in long term decisoin making [duplicate]
this wikidepia article has a list of experiments and discussion around free will in neuroscience. One thing it notes is that there aren't studies focused on long term decision making in relation to ...
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Cerebellum question
Sorry if this sounds at all like pretentious armchair theorizing(it basically is), but I have a question which I can't really figure out how to search. So, given the resemblance of the cerebellum to ...
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1answer
37 views
How can different ion channels of the same type have different cell responses?
The NMDA receptor is an ion channel and contributes to synaptic plasticity and memory. It is said that calcium ion flux through the receptor is critical for this mechanism. However, there are other ...
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55 views
What is the exact chemical reaction that gives consciousness? [closed]
Something very bizarre is consciousness, it is our ability to virtually feel things such as emotions and ability to control our thoughts and physical movement.
We can also imagine a non-conscious ...
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1answer
94 views
Why can't human thoughts be stored in metals?
As metals are good conductors of electricity and they can be charged by the electrical activity of thoughts, why can't human thoughts be stored in metals?
Why thoughts cannot be stored in the form of ...
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1answer
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How fast can stimuli be administered for evoked potentials?
I'm looking for a reference about the ability for sensory stimuli to generate separate evoked potentials in the brain.
What is the maximum repetition rate for sensory evoked potentials?
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1answer
51 views
Is the Thatcher Face Illusion only limited to face recognition?
The so called Thatcher-Illusion has been documented not only on humans but also in some monkeys.
However I can't find literature clearing out if this effect only applies to face-recognition.
What ...
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Have there been any right-hemisphere-dominant split-brain-patients?
Do any case studies of right-hemisphere dominant individuals who have undergone a severance of the corpus callosum exist? Thanks.
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1answer
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How can someone asleep recognize a very brief sound?
I have a snoring girlfriend. To interrupt her snoring, I make a sound similar to the very brief sound gas makes when opening a soda can or bottle (had a snoring brother, I know this technique works ...
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1answer
64 views
Is there a Big Five personality assessment under an open-commercial license?
I am currently working on a project with a few students. It's an app that can test the big 5 personality test. The problem is, I am having trouble finding one that is under an open license and that we ...
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Using neuroscience to study a new organism [closed]
Consider a situation where you discover a new species and of organism. Using research methods of neuroscience or otherwise, how would you go about analyzing the nervous system and the brain of this ...
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Which are the arguments for asserting mental life/consciouness happen only in the cerebral cortex?
I've read many articles / researchs and they are hard to follow. Several times concepts are hard to understand, it would seem certain concepts such as "cognition" are fuzzy terms and they become part ...
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476 views
What's the difference between the neuroendocrine system vs endocrine system?
No one in the Biology site seems to be answering this, so I thought I'd post it here as a last resort. I would really appreciate if you guys can take a look at it.
This is what I have understood so ...
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1answer
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Typical and minimum voxel sizes for various field strength MRI machines?
Hoping somebody can give me some real world numbers on the typical capabilities of 3T and 7T MRI machines in terms of there minimum voxel size (specifically in relation to there use in fMRI studies if ...
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Is there any research on whether primates with sign language use same fronto-temporal language networks observed in humans?
I have been reading up on research carried out at Ev Fedorenko's MIT Language Lab on localising the high-level language processing regions in humans using fMRI and was wondering if any comparative ...
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Bottom up thinking - what is it?
Mlodinow has book Elastic thinking, which sounds interesting and where he mentions bottom up processes/thinking; which he equates with elastic thinking.
I have watched numerous videos about it, and ...
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58 views
Can the brain be enhanced by adding more neurons?
I was wondering of ways to enhance the brain. Couldn't we add a sort of substance to improve the brain? Will it somehow adapt? The brain should 'wire up' the new substance to the existing one.
As ...
