TY - GEN
T1 - Dynamic finite-element model of axon extracellular stimulation
AU - Henriquez, Fernando
AU - Jerez-Hanckes, Carlos
AU - Altermatt, M. D.Fernando R.
PY - 2013
Y1 - 2013
N2 - We study the electrical influence of an electrode over an axon of nonzero thickness in time using a two-dimensional finite element formulation. Although our inspiration comes from the practice of peripheral nerve stimulation, other types of neural tissue excitation can benefit from the model. Our formulation combines a Hodgkin-Huxley model to account for nerve dynamics with electrostatic intra- and extracellular potentials. Thus, the influence of external electrode geometry and parameters can be addressed instead of simplifying them to point current sources. We show first numerical results for different extracellular stimuli and explore future enhancement directions.
AB - We study the electrical influence of an electrode over an axon of nonzero thickness in time using a two-dimensional finite element formulation. Although our inspiration comes from the practice of peripheral nerve stimulation, other types of neural tissue excitation can benefit from the model. Our formulation combines a Hodgkin-Huxley model to account for nerve dynamics with electrostatic intra- and extracellular potentials. Thus, the influence of external electrode geometry and parameters can be addressed instead of simplifying them to point current sources. We show first numerical results for different extracellular stimuli and explore future enhancement directions.
UR - http://www.scopus.com/inward/record.url?scp=84897676373&partnerID=8YFLogxK
U2 - 10.1109/NER.2013.6696003
DO - 10.1109/NER.2013.6696003
M3 - Conference contribution
AN - SCOPUS:84897676373
SN - 9781467319690
T3 - International IEEE/EMBS Conference on Neural Engineering, NER
SP - 589
EP - 592
BT - 2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013
T2 - 2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013
Y2 - 6 November 2013 through 8 November 2013
ER -