The effect of changed dt and steps_per_ms
Posted: Wed Jan 13, 2021 2:45 am
Hello,
I'm a graduate student who studied with NEURON.
I conducted extracellular stimulation to anatomically realistic models via the code written by Ted, and investigated electric field thresholds (through apc.n, I checked somatic membrane polarized over 0 or not).
However, there was difference in threshold value according to dt and steps_per_ms.
1) dt=0.1ms and steps_per_ms=10.
2) dt=0.025ms and steps_per_ms=40.
The gap of threshold value between the two cases was 4-5 mV/mm.
I wondered what causes this difference of thresholds.
If you explain to me the reason, it would be really appreciated.
Thank you in advance.
I'm a graduate student who studied with NEURON.
I conducted extracellular stimulation to anatomically realistic models via the code written by Ted, and investigated electric field thresholds (through apc.n, I checked somatic membrane polarized over 0 or not).
However, there was difference in threshold value according to dt and steps_per_ms.
1) dt=0.1ms and steps_per_ms=10.
2) dt=0.025ms and steps_per_ms=40.
The gap of threshold value between the two cases was 4-5 mV/mm.
I wondered what causes this difference of thresholds.
If you explain to me the reason, it would be really appreciated.
Thank you in advance.