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stdp synapse nestml erro
by Chris Huyck 20 Sep '24

20 Sep '24

I'm working with the nestml 7.0.2. I got the example models from https://github.com/nest/nestml/blob/v7.0.2/models/neurons/hill_tononi.nestml this git tree. I tried three different stdp models including stdp_triplet_naive.nestml. All give AssertionError: Synapses only support one spiking input port when I generate_target in python. -Chris

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Discuss NEST @ Bernstein Conference in Frankfurt 29 Sep–2 Oct
by Hans Ekkehard Plesser 19 Sep '24

19 Sep '24

Dear NEST Users, I just wanted to let you know that I and a number of other NEST developers will attend the Bernstein Conference in Frankfurt from 29 September to 2 October this year. If you would like to discuss anything related to NEST, let me know so we can arrange to meet. You are also welcome to drop by the EBRAINS booth, where we will have NEST stickers 😊. If you are going to present work done with NEST, we’d appreciate it if you put a “nest::simulated()” logo on your slides or poster (see https://github.com/nest/nest-simulator/tree/master/doc/logos) and let us know about your talk/poster number in advance. Best Hans Ekkehard -- Prof. Dr. Hans Ekkehard Plesser Head of Research, Faculty of Science and Technology Head, Department of Data Science Department of Data Science Faculty of Science and Technology Norwegian University of Life Sciences PO Box 5003, 1432 Aas, Norway Phone +47 6723 1560 Email hans.ekkehard.plesser(a)nmbu.no<mailto:hans.ekkehard.plesser@nmbu.no> Home http://arken.nmbu.no/~plesser

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stp synapse nestml errror
by Chris Huyck 18 Sep '24

18 Sep '24

I'm trying to make a Hebbian Short Term plasticity model. I got the stdp_synapse working, and then tried to change that to stp. I kept getting the error stp_synapse not found in pynest. So, I just started from the static synapse, and modified that to get an stp_synapse that wasn't Hebbian. When I introduced the post_synaptic neuron into the model, the stp_synapse not found error returns. Oddly, in the generated files (.h, .cpp, in stp_synapse__with_iaf_cond_exp_neuron and iaf_cond_exp_neuron__with_stp_synapse) there is a function for register stdp_synapse. (If you want to duplicate this, just change the stdp_synapse model name to stp_synapse). -Chris

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Regular LIF with adaptive threshold
by jona.m.scholz＠gmail.com 13 Sep '24

13 Sep '24

Hello everyone, just a quick question in case anybody knows: is there a LIF model that has an adaptive spike threshold in NEST? I know there's the GLIF model which can have a threshold, but it seems to bring other deviations from the conventional LIF model that I want to avoid. There's also the adaptive exponential integrate and fire model, but again I don't want the exponential part. It's not a problem if no such model exists in NEST, I am only asking so I don't reimplement an existing model. Any feedback would be appreciated. Kind regards, Jona

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Open NEST Developer Video Conference Monday September 9, at 11:30 CEST (UTC+0200)
by Dennis Terhorst 09 Sep '24

09 Sep '24

Dear NEST Users & Developers! I would like to invite you to our next fortnightly Open NEST Developer Video Conference today *Monday September 9, at 11:30 CEST (UTC+0200).* As usual, in the Project team round, a contact person of each team will give a short statement summarizing ongoing and planned work in the team and highlight cross-cutting points that need discussion among the teams. The remainder of the meeting we would go into a more in-depth discussion of topics that came up on the mailing list or that are suggested by the teams. Feel free to join the meeting also if it’s just to bring your own quick questions for direct discussion in the in-depth section. Agenda * Welcome * Review of NEST User Mailing List * Project team round * In-depth discussion The agenda for this meeting is also available online, see https://github.com/nest/nest-simulator/wiki/2024-09-09-Open-NEST-Developer-… <https://github.com/nest/nest-simulator/wiki/2024-09-09-Open-NEST-Developer-…> Looking forward to seeing you soon! Cheers, Dennis Terhorst Log-in information We use a virtual conference room provided by DFN <https://www.dfn.de/en/> (Deutsches Forschungsnetz). You can use the web client to connect. We however encourage everyone to use a headset for better audio quality or even a proper video conferencing system (see below) or software when available. Web client * Visit https://conf.dfn.de/webapp/conference/97938800 <https://conf.dfn.de/webapp/conference/97938800> * Enter your name and allow your browser to use camera and microphone * The conference does not need a PIN to join, just click join and you’re in. In case you see a dfnconf logo and the phrase “Auf den Meetingveranstalter warten”, just be patient, the meeting host needs to join first (a voice will tell you). VC system/software How to log in with a video conferencing system, depends on you VC system or software. * Using the H.323 protocol (eg Polycom): |vc.dfn.net##97938800| or |194.95.240.2##97938800| * Using the SIP protocol:97938800@vc.dfn.de <mailto:97938800@vc.dfn.de> * By telephone: |+49-30-200-97938800| For those who do not have a video conference system or suitable software, Polycom provides a pretty good free app for iOS and Android, so you can join from your tablet (Polycom RealPresence Mobile, available from AppStore/PlayStore). Note that firewalls may interfere with videoconferencing in various and sometimes confusing ways. For more technical information on logging in from various VC systems, please see http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4 <http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4> -- Dipl.-Phys. Dennis Terhorst Coordinator Software Development Institute for Advanced Simulation (IAS-6) Computational and Systems Neuroscience & JARA-Institute Brain Structure-Function Relationships (INM-10) Institute of Neuroscience and Medicine Jülich Research Center, Member of the Helmholz Association 52425 Jülich, Germany http://www.csn.fz-juelich.de/ Phone +49 2461 61-85062 ---------------------------------------------------------------------- Forschungszentrum Jülich GmbH 52425 Jülich Sitz der Gesellschaft: Jülich Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Stefan Müller Geschäftsführung: Prof. Dr. Astrid Lambrecht (Vorsitzende), Karsten Beneke (stellv. Vorsitzender), Prof. Dr. Ir. Pieter Jansens ----------------------------------------------------------------------

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Invitation for Article Submissions
by David Wack 05 Sep '24

05 Sep '24

Greetings Everyone, Paul John Werbos, Rajendra D Badgaiyan, Konstantinos Slavakis, and I are bringing key researchers together in a focused project on 'Modeling brain circuits as intelligent systems'. Here's a link to find out more about the project: https://www.frontiersin.org/researchtopic/64421. This topic is an extension of a US NSF push led by Dr. Werbos in 2007. We believe that members of this community would have much to offer and we would like to invite you to participate. If you are interested, please let me know directly, and I will send an invitation link: dswack(a)buffalo.edu<mailto:dswack@buffalo.edu> We are trying to finalize the leading group of participating authors in the next two weeks, so we can start publishing our work before the topic closes on 07 March 2025. Our Research Topic will be hosted in Frontiers in Systems Neuroscience Impact Factor: 3.1 Cite Score: 6.0 Frontiers will provide a team to help develop and promote our project, and we'll have a dedicated space in the journal to showcase our collective work and to amplify its impact and visibility. I'm looking forward to seeing your work and exploring this emerging topic together. I really think we can push this field forward as a team. All the best, dave David S. Wack, PhD dswack(a)buffalo.edu Associate Professor, Depts. of Nuclear Medicine and Biomedical Engineering University at Buffalo, USA P.S. Frontiers is a publisher created by scientists for scientists. We created Research Topics to give emerging research communities a platform. They bring together leading researchers to accelerate the development of cutting-edge research themes. As an open access publisher, Frontiers applies article publishing charges (APCs) to make research freely open and available for all. You can find more information here. If you encounter any technical issue, contact support(a)frontiersin.org<mailto:support@frontiersin.org>, with s0WY7RwlpCx5JEP as reference. David S. Wack, PhD Associate Professor Depts. of Nuclear Medicine And Biomedical Engineering University at Buffalo tel: 716 829-2648 cell: 716 319-4853 email: dswack(a)buffalo.edu or : dswack(a)gmail.com

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Open NEST Developer Video Conference Monday August 26, at 11:30 CEST (UTC+0200)
by Dennis Terhorst 26 Aug '24

26 Aug '24

Dear NEST Users & Developers! I would like to invite you to our next fortnightly Open NEST Developer Video Conference today *Monday August 26, at 11:30 CEST (UTC+0200).* As usual, in the Project team round, a contact person of each team will give a short statement summarizing ongoing and planned work in the team and highlight cross-cutting points that need discussion among the teams. The remainder of the meeting we would go into a more in-depth discussion of topics that came up on the mailing list or that are suggested by the teams. Feel free to join the meeting also if it’s just to bring your own quick questions for direct discussion in the in-depth section. Agenda * Welcome * Review of NEST User Mailing List * Project team round * In-depth discussion The agenda for this meeting is also available online, see https://github.com/nest/nest-simulator/wiki/2024-08-26-Open-NEST-Developer-… <https://github.com/nest/nest-simulator/wiki/2024-08-26-Open-NEST-Developer-…> Looking forward to seeing you soon! Cheers, Dennis Terhorst Log-in information We use a virtual conference room provided by DFN <https://www.dfn.de/en/> (Deutsches Forschungsnetz). You can use the web client to connect. We however encourage everyone to use a headset for better audio quality or even a proper video conferencing system (see below) or software when available. Web client * Visit https://conf.dfn.de/webapp/conference/97938800 <https://conf.dfn.de/webapp/conference/97938800> * Enter your name and allow your browser to use camera and microphone * The conference does not need a PIN to join, just click join and you’re in. In case you see a dfnconf logo and the phrase “Auf den Meetingveranstalter warten”, just be patient, the meeting host needs to join first (a voice will tell you). VC system/software How to log in with a video conferencing system, depends on you VC system or software. * Using the H.323 protocol (eg Polycom): |vc.dfn.net##97938800| or |194.95.240.2##97938800| * Using the SIP protocol:97938800@vc.dfn.de <mailto:97938800@vc.dfn.de> * By telephone: |+49-30-200-97938800| For those who do not have a video conference system or suitable software, Polycom provides a pretty good free app for iOS and Android, so you can join from your tablet (Polycom RealPresence Mobile, available from AppStore/PlayStore). Note that firewalls may interfere with videoconferencing in various and sometimes confusing ways. For more technical information on logging in from various VC systems, please see http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4 <http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4> -- Dipl.-Phys. Dennis Terhorst Coordinator Software Development Institute for Advanced Simulation (IAS-6) Computational and Systems Neuroscience & JARA-Institute Brain Structure-Function Relationships (INM-10) Institute of Neuroscience and Medicine Jülich Research Center, Member of the Helmholz Association 52425 Jülich, Germany http://www.csn.fz-juelich.de/ Phone +49 2461 61-85062 ---------------------------------------------------------------------- Forschungszentrum Jülich GmbH 52425 Jülich Sitz der Gesellschaft: Jülich Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Stefan Müller Geschäftsführung: Prof. Dr. Astrid Lambrecht (Vorsitzende), Karsten Beneke (stellv. Vorsitzender), Prof. Dr. Ir. Pieter Jansens ----------------------------------------------------------------------

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Open NEST Developer Video Conference Monday July 29, at 11:30 CEST (UTC+0200)
by Dennis Terhorst 12 Aug '24

12 Aug '24

Dear NEST Users & Developers! I would like to invite you to our next fortnightly Open NEST Developer Video Conference today *Monday July 29, at 11:30 CEST (UTC+0200).* As usual, in the Project team round, a contact person of each team will give a short statement summarizing ongoing and planned work in the team and highlight cross-cutting points that need discussion among the teams. The remainder of the meeting we would go into a more in-depth discussion of topics that came up on the mailing list or that are suggested by the teams. Feel free to join the meeting also if it’s just to bring your own quick questions for direct discussion in the in-depth section. Agenda * Welcome * Review of NEST User Mailing List * Project team round * In-depth discussion The agenda for this meeting is also available online, see https://github.com/nest/nest-simulator/wiki/2024-07-29-Open-NEST-Developer-… <https://github.com/nest/nest-simulator/wiki/2024-07-29-Open-NEST-Developer-…> Looking forward to seeing you soon! Cheers, Dennis Terhorst Log-in information We use a virtual conference room provided by DFN <https://www.dfn.de/en/> (Deutsches Forschungsnetz). You can use the web client to connect. We however encourage everyone to use a headset for better audio quality or even a proper video conferencing system (see below) or software when available. Web client * Visit https://conf.dfn.de/webapp/conference/97938800 <https://conf.dfn.de/webapp/conference/97938800> * Enter your name and allow your browser to use camera and microphone * The conference does not need a PIN to join, just click join and you’re in. In case you see a dfnconf logo and the phrase “Auf den Meetingveranstalter warten”, just be patient, the meeting host needs to join first (a voice will tell you). VC system/software How to log in with a video conferencing system, depends on you VC system or software. * Using the H.323 protocol (eg Polycom): |vc.dfn.net##97938800| or |194.95.240.2##97938800| * Using the SIP protocol:97938800@vc.dfn.de <mailto:97938800@vc.dfn.de> * By telephone: |+49-30-200-97938800| For those who do not have a video conference system or suitable software, Polycom provides a pretty good free app for iOS and Android, so you can join from your tablet (Polycom RealPresence Mobile, available from AppStore/PlayStore). Note that firewalls may interfere with videoconferencing in various and sometimes confusing ways. For more technical information on logging in from various VC systems, please see http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4 <http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4> -- Dipl.-Phys. Dennis Terhorst Coordinator Software Development Institute for Advanced Simulation (IAS-6) Computational and Systems Neuroscience & JARA-Institute Brain Structure-Function Relationships (INM-10) Institute of Neuroscience and Medicine Jülich Research Center, Member of the Helmholz Association 52425 Jülich, Germany http://www.csn.fz-juelich.de/ Phone +49 2461 61-85062 ---------------------------------------------------------------------- Forschungszentrum Jülich GmbH 52425 Jülich Sitz der Gesellschaft: Jülich Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Stefan Müller Geschäftsführung: Prof. Dr. Astrid Lambrecht (Vorsitzende), Karsten Beneke (stellv. Vorsitzender), Prof. Dr. Ir. Pieter Jansens ----------------------------------------------------------------------

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Inject analog signal in a neuron
by Maryada Maryada 08 Aug '24

08 Aug '24

Dear NEST Users, Could anyone recommend the best way to inject a fluctuating current over time. A sample signal [image: image.png] -- Thanks and Regards *Maryada*

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Order or Computation
by carriere.maxime93＠gmail.com 08 Aug '24

08 Aug '24

Hello everyone, I am trying to replicate our brain-constrained model to NEST. In our model the computation of the inhibition occurs before the inhibition. I believe it's the other way round in NEST. I was wondering, where the order of computation was implemented in NEST and if that was possible to change it. Best, Maxime

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