"Recorded potentials in the extracellular space (ECS) of the brain is a standard measure of population activity in neural tissue. Computational models that simulate the relationship between the ECS potential and its underlying neurophysiological processes are commonly used in the interpretation of such measurements. Standard methods, such as volume-conductor theory and current-source density theory, assume that diffusion has a negligible effect on the ECS potential, at least in the range of frequencies picked up by most recording systems. This assumption remains to be verified. We here present a hybrid simulation framework that accounts for diffusive effects on the ECS potential. ..."
Model Type: Extracellular; Neuron or other electrically excitable cell
Cell Type(s): Neocortex U1 L6 pyramidal corticalthalamic GLU cell
Model Concept(s): Extracellular Fields
Simulation Environment: MATLAB; NEURON
Implementer(s): Halnes, Geir [geir.halnes at nmbu.no]; Maki-Marttunen, Tuomo [tuomomm at uio.no]
Halnes G et al. (2016). Effect of Ionic Diffusion on Extracellular Potentials in Neural Tissue. PLoS computational biology. 12 [PubMed]