2023 10 23 Open NEST Developer Video Conference

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Agenda

1. Welcome
2. Review of NEST User Mailing List
3. Project team round
4. In-depth discussion
   • numerical integration in neuron models (nestml)
   • tri-partite semantics (astrocyte models)
   • accessing parameters of compartmental models

Mailing list

• https://nest-simulator.org/mailinglist

Project team round

Here we discuss topics that need broader attention, for example questions that came up but are outside a single project's scope, larger planned changes/PRs that affect all teams or pending work that is blocked by external factors.

Go to the Project boards.

In-depth discussion

Numerical integration in neuron models (NESTML)

Grid based integration and precise timing cause models to reach spike threshold at different times

• Q: should we expect robust timing?
• Q: should we expect non-linar models to behave different?

Tri-partite semantics (astrocyte models)

Semantics of conditional probability p_cond may be confusing (see Connection specifications) as cond usually indicates conductance based models

Possible alternatives

• p_syn_third
• p_primary_third
• p_third Or even more verbose
• p_neuron_connection_with_third
• p_conditional_third
• p_third_if_primary (DECISION)

Accessing parameters of compartmental models

How can we gain access to setting parameters in specific compartments (see discussion here)?

• Which would be the best way to implement? Does something similar already exist in other areas?