# \#poisson

**URL:** https://brian.discourse.group/tag/poisson/52.md

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## [Setting seed for reproducible \`PoissonGroup\` patterns?](https://brian.discourse.group/t/setting-seed-for-reproducible-poissongroup-patterns/1351)

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**Author:** [@itq](https://brian.discourse.group/u/itq)\
**Replies:** 1\
**Last updated:** [16 December 2024 14:40 UTC](https://brian.discourse.group/t/setting-seed-for-reproducible-poissongroup-patterns/1351 "2024-12-16T14:40:55Z")

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Is it possible? I see documentation for the seed function for device, but I’m not sure if it accomplishes what I would like. In my script I’m already setting the random seed for numpy via rng = np.random.default\_rng(42) …

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## [Possibility of speeding up Poisson spike generation](https://brian.discourse.group/t/possibility-of-speeding-up-poisson-spike-generation/1342)

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**Author:** [@DavidKing2020](https://brian.discourse.group/u/DavidKing2020)\
**Replies:** 21\
**Last updated:** [10 December 2024 16:07 UTC](https://brian.discourse.group/t/possibility-of-speeding-up-poisson-spike-generation/1342 "2024-12-10T16:07:04Z")

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I have a layer of input neurons where each neuron generates Poisson spikes based on the intensity of a specific pixel of an image. The profiling with running in cpp\_standalone mode seems to show this procedure takes mo…

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## [\`PoissonGroup\` vs. \`PoissonInput\` and their parameters](https://brian.discourse.group/t/poissongroup-vs-poissoninput-and-their-parameters/1181)

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**Author:** [@itq](https://brian.discourse.group/u/itq)\
**Replies:** 3\
**Last updated:** [15 April 2024 08:46 UTC](https://brian.discourse.group/t/poissongroup-vs-poissoninput-and-their-parameters/1181 "2024-04-15T08:46:56Z")

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Description of problem I’m trying to test my understanding of some code: import numpy as np from brian2 import Synapses, NeuronGroup, ms, mV, Hz, SpikeMonitor, Network, PoissonInput params = { 'v\_0' : -52 \* m…