Hi Ady,

in NEST 3 allowing autapses is a property of the connection, not of the kernel anymore. So you give it in the 'conn_spec' dictionary of the Connect() call:

– https://nest-simulator.readthedocs.io/en/v3.1/guides/spatially_structured_networks.html?highlight=autapse

Same holds true for multapses.

Let us know if that works for you.

Best regards,
Dennis

Hi all,

Is there a way to allow/disallow autapses and multapses for structurally plastic 
synapses in NESTv 3.1?

I used the following code for disabling autapses in NESTv2.20.1 with:

    nest.SetKernelStatus({
         'structural_plasticity_synapses': {
             'syn1': {
                 'model': 'copied_synapse_model',
                 'post_synaptic_element': 'Den_exc',
                 'pre_synaptic_element': 'Axon_exc',
             }
         },
          'autapses': False,
    })

However, this does not work in NEST 3.1 (Error: "`autapses` is not a valid 
kernel parameter, valid parameters are: ...")

I am moving to NEST 3.1 and would like to disable autapses for structurally 
plastic neurons (i.e., no direct connections between synaptic elements of the 
same neuron).

Thanks for any help :)


Best regards,
Ady

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-- 
Dipl.-Phys. Dennis Terhorst
Coordinator Software Development

Institute of Neuroscience and Medicine (INM-6)
Computational and Systems Neuroscience &
Theoretical Neuroscience,
Institute for Advanced Simulation (IAS-6)
Jülich Research Centre, Member of the Helmholz Association and JARA
52425 Jülich, Germany

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Phone    +49 2461 61-85062
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d.terhorst@fz-juelich.de

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