Neuroscience is the study of nervous systems. This tag is broadly applied to questions from the various subbranches like brain imaging, neural engineering, computational and systems neuroscience.
Questions tagged [neuroscience]
162 questions
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How much does irrelevant information in an image affect the learning process of CNN?
I have a CNN for Alzheimer detection on MRI data. The MRI's are 3D 1.5T scans and the skull is very visible (a premade dataset from ADNI1 year 3). I've been trying to adapt skull stripping but haven't succeeded so decided to run my model without…
Mira
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stimuli class to draw 3D dots
I am new to using PsychoPy for my experiments in Neuroscience, and I would like to draw dots in a 3D plane. I found the functions DotStim and ElementArrayStim but they only take X and Y coordinates (no additional Z coordinates for a 3rd…
Kathia
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How can I collect cell models associated with a given channel model using NeuroML Database API?
I want to associate a subset of channel models in the NeuroML Database with the cell models they're embedded in. I'm wondering if there is a quick and easy way to get all the associated cells for a given channel model.
Here's the "first" channel…
Vergil R. Haynes
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Butterworth filtering of EEG data in R
I'm very new at R and EEG signalling so please excuse me if the answer to the question is obvious.
I'm trying to perform a Butterworth filter to an EEG signal to extract the Alpha band. When I executed the filter, the resulting signal looked very…
Ian Quest
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How to preprocess NIfTI data format using NiBabel (Python)
after convertig a NIfTI-file to an array using NiBabel, the array has three dimensions and the numbers look like this:
[-9.35506855e-42 -1.78675141e-35 1.18329136e-30 -1.58892995e-24
5.25227377e-24 1.11677966e-23 -2.41237451e-24…
MedLearn
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How to map "boolean spike result" to "floating point input current value" in spiking neural network?
My question is about spiking neural networks. Input of a typical spiking neuron is usually some floating point value, representing its inflow current, typically expressed in mA or similar units, like in a following simple example:
static const…
xakepp35
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Measure spike correlation over time for different neurons
I´m trying to find a global measure of similarity for spikes trains over time. The signals look like in the picture (in this example I have 17 neurons).
Can I use windowed cross correlations? If yes, what should I do with the output matrices? I use…
Roberto
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Dose 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.
zeinab
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Fit curve to bar plot using kernel smoothing - MATLAB
I've been through many topics and suggestions and I'm still no able to adequately overlay a smoothed line on a bar plot.
This is my plot: Bar plot. It represents the firing rate of a neuron over time. In this case 0 is an event of interest and I…
Oiko
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How to get a random observation point at a specific time over multiple trials in R?
I am working on Spike Trains and my code to get a spike train like this:
for 20 trials is written below. The image is representational for 5 trials.
fr = 100
dt = 1/1000 #dt in milisecond
duration = 2 #no of duration in s
nBins = 2000…
14thTimeLord
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Is there a way to implement a full Python (psychopy) procedure into neurobs Presentation without rewriting the whole code?
I found an option to get python to play Presentation procedures, but not the other way around. I have a ton of code and rewriting it into a different language would be a nightmare.
Julia Bruyere
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Compiling FSL: 'fatal error: libxml++/libxml++.h: No such file or directory'
I understand that this has come up a lot, but I've looked through all the other answers and none of them are relevant to me.
I am trying to compile the neuroimaging software FSL from source (I have to, it's not supported on my Linux Distro). I've…
Thomas Varley
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MAC NEURON-Python: Error A newer Command Line Tools release is available. Update them from Software Update in the App Store
When trying to install NEURON with Python support (eg. can run python -c "import neuron"), using instructions from the Human Brain Project portal website. After:
brew install neuron
I get the following (misleading) error:
Error: A newer Command Line…
Justas
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How to read Enobio8 device EGG signal via MNE-Python?
I am currently working in a BCI project. We read the data from an Enobio8 device and when we recorded the file. The file is saved as an .easy format along with a .info file.
Below are examples of what each file contains.
1- EEG signals .easy file…
sakurami
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Finding the Steady State Output of a Linear Recurrent Network
I'm taking a Computational Neuroscience class on Coursera. So far it's been going great! However, I'm getting a little stuck on one of the quiz problems.
I am not taking this class for a certificate or anything. Solely for fun. I already took the…
jlarks32
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