14 Jun
2023
14 Jun
'23
8:05 a.m.
is there a way to generate correlated Gaussian white noise in the NEST?
It is stated that the "noise_generator" can be used to inject a "Gaussian
white” noise current into a node, also it is stated that all targets of a
noise generator receive different currents.
I am looking for a way to produce correlated white noise, or equally send
the same noise to all targets of the "noise_generator".
In the next step, I like to have a small duration of noisy current, then
inject the same current into different neurons at different times.
Best,
Saeed
14 Jun
14 Jun
10:30 a.m.
Dear Saeed,
You are right that the noise_generator generates a different noise for
each target. The noise is generated as explained here:
https://nest-simulator.readthedocs.io/en/stable/models/noise_generator.html
To supply the same noise to all targets, you could generate the noise in
python and pass this as the argument "amplitude_times" to a
step_current_generator, see
https://nest-simulator.readthedocs.io/en/latest/models/step_current_generat…
The step_current_generator will then send this noise to all of its
targets. Creating the noise outside NEST and passing it to different
step_current_generators connected to different neurons also lets you
realize the next step that you mentioned if you also specify the
argument "amplitude_times" .
Best,
David
On 14.06.23 08:05, saeed taghavi wrote:
is there a way to generate correlated Gaussian white noise in the NEST?
It is stated that the "noise_generator" can be used to inject a
"Gaussian white” noise current into a node, also it is stated that all
targets of a noise generator receive different currents.
I am looking for a way to produce correlated white noise, or equally
send the same noise to all targets of the "noise_generator".
In the next step, I like to have a small duration of noisy current,
then inject the same current into different neurons at different times.
Best,
Saeed
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Dr. David Dahmen
Institute of Neuroscience and Medicine (INM-6) and
Institute for Advanced Simulation (IAS-6) and
JARA Institut Brain Structure-Function Relationships (INM-10)
Jülich Research Centre
Jülich, Germany
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