166 citations · 427 across the 7 of their papers we have counts for
8 papers
Computing extracellular electric potentials from neuronal simulations
Torbjørn V. Ness, Geir Halnes, Solveig Næss +2
Measurements of electric potentials from neural activity have played a key role in neuroscience for almost a century, and simulations of neural activity is an important tool for un…
Astrocytic Ion Dynamics: Implications for Potassium Buffering and Liquid Flow
Geir Halnes, Klas H. Pettersen, Leiv Øyehaug +2
We review modeling of astrocyte ion dynamics with a specific focus on the implications of so-called spatial potassium buffering, where excess potassium in the extracellular space (…
The effect of ionic diffusion on extracellular potentials in neural tissue
Geir Halnes, Tuomo Mäki-Marttunen, Daniel Keller +2
In computational neuroscience, it is common to use the simplifying assumption that diffusive currents are negligible compared to Ohmic currents. However, endured periods of intense…
Electrodiffusive model for astrocytic and neuronal ion concentration dynamics
Geir Halnes, Ivar Østby, Klas H. Pettersen +2
Electrical neural signalling typically takes place at the time-scale of milliseconds, and is typically modeled using the cable equation. This is a good approximation for processes…
Arterial stiffening provides sufficient explanation for primary hypertension
Klas H. Pettersen, Scott M. Bugenhagen, Javaid Nauman +2
Hypertension is one of the most common age-related chronic diseases and by predisposing individuals for heart failure, stroke and kidney disease, it is a major source of morbidity…
On 1/f^alpha power laws originating from linear neuronal cable theory: power spectral densities of the soma potential, transmembrane current and single-neuron contribution to the EEG
Klas H. Pettersen, Henrik Lindén, Tom Tetzlaff +1
Power laws, that is, power spectral densities (PSDs) exhibiting 1/f^alpha behavior for large frequencies f, have commonly been observed in neural recordings. Power laws in noise sp…