Re: Extracellular stimulation and recording
Posted: Tue Dec 12, 2023 9:04 am
(In response to
Extracellular stimulation and recording
viewtopic.php?t=168)
Dear colleagues,
I'm working on a direct current model of transcutaneous electrical stimulation of the spinal cord. The volume conductor model was thought to be purely resistive, with multiple layers of tissues (skin, muscles, bones, etc.). COMSOL was used to simulate the electric field induced in the spinal cord. In this way, I hope to simulate how the field affects the excitability of motoneurons (particularly somata and dendrites). My question is, how can I apply DC stimulation using the "extracellular" and "xtra" mechanisms? Will the distribution of the electrical potential calculated with the FEM over the conductive volume (gray matter) in this case be the input for the model's extracellular electrical potential? Or should I rely on the electric field? Should I calculate rx using V (Calculated Electric Potential) / I (input current), which is defined as "transfer resistance between the stimulus electrode and the local node"?
Extracellular stimulation and recording
viewtopic.php?t=168)
Dear colleagues,
I'm working on a direct current model of transcutaneous electrical stimulation of the spinal cord. The volume conductor model was thought to be purely resistive, with multiple layers of tissues (skin, muscles, bones, etc.). COMSOL was used to simulate the electric field induced in the spinal cord. In this way, I hope to simulate how the field affects the excitability of motoneurons (particularly somata and dendrites). My question is, how can I apply DC stimulation using the "extracellular" and "xtra" mechanisms? Will the distribution of the electrical potential calculated with the FEM over the conductive volume (gray matter) in this case be the input for the model's extracellular electrical potential? Or should I rely on the electric field? Should I calculate rx using V (Calculated Electric Potential) / I (input current), which is defined as "transfer resistance between the stimulus electrode and the local node"?