Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Aggression in epilepsy and sleep: from historical accounts to brain networks and human behaviour.

Brain : a journal of neurology·2026

Same author

Variational autoencoder for interpretable seizure onset phases detection.

Journal of neural engineering·2026

Same author

Pediatric epilepsy surgery: Global survey of invasive explorations.

Epilepsia·2026

Same author

Limited Efficacy of 3 mA Intensified tDCS of the Right Inferior Frontal Cortex for OCD Treatment: A Randomized, Double-Blind, Sham-Controlled Study.

CNS neuroscience & therapeutics·2026

Same author

Restoring oscillatory dynamics in Alzheimer's disease: A laminar whole-brain model of serotonergic psychedelic effects.

Network neuroscience (Cambridge, Mass.)·2026

Same author

ILAE-YES global webinar series: Integrating clinical and basic science in epilepsy research.

Epilepsia open·2026

Same journal

Cortex-anchored sensor-space harmonics for event-related EEG.

Journal of neural engineering·2026

Same journal

Neural mechanisms of mixed speech and grasp representation in sensorimotor cortices.

Journal of neural engineering·2026

Same journal

Developing a binary communication protocol between biological neural networks using virtual white matter.

Journal of neural engineering·2026

Same journal

Spatiotemporally distinctive astrocytic and neuronal responses to repetitive intracortical microstimulation.

Journal of neural engineering·2026

Same journal

A neural mass modelling framework for evaluating EEG source localisation of seizure activity.

Journal of neural engineering·2026

Same journal

Functional and effective connectivity methods from SEEG for characterizing epileptogenic networks in refractory epilepsy: a comprehensive review and future directions.

Journal of neural engineering·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Oct 3, 2025

Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees

Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees

Published on: July 15, 2009

Modeling implanted metals in electrical stimulation applications.

Borja Mercadal¹, Ricardo Salvador¹, Maria Chiara Biagi¹

¹Neuroelectrics, Barcelona, Spain.

Journal of Neural Engineering

|February 16, 2022

Summary

This summary is machine-generated.

Metal implants act as insulators in low electric fields but conductors in high fields. Choosing the correct model for metal implants in electrical stimulation is crucial to avoid significant dosimetry errors.

Keywords:

finite elements method floating conductors isolated conductors passive electrodes

More Related Videos

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models

Published on: August 12, 2018

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

Published on: March 3, 2014

Related Experiment Videos

Last Updated: Oct 3, 2025

Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees

Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees

Published on: July 15, 2009

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models

Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models

Published on: August 12, 2018

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

Published on: March 3, 2014

Area of Science:

Biomedical Engineering
Computational Electrophysiology
Medical Device Modeling

Background:

Metal implants significantly influence electrical stimulation dosimetry.
Accurate numerical modeling requires appropriate representation of metal implants.
The electrochemical interface between metal and tissue affects charge transport.

Purpose of the Study:

To provide a theoretical framework for selecting the correct model for metal implants in electrical simulations.
To investigate the electrical behavior of metal implants under varying electric field conditions.
To assess the impact of incorrect implant modeling on transcranial electrical stimulation (tES) dosimetry.

Main Methods:

Developed a simplified model of a metal implant subjected to homogeneous electric fields.
Compared results from purely electrical models (varying conductivity) with an electrochemical model.
Modeled tES in a realistic head model with a skull plate, varying plate conductivity.

Main Results:

Metal implants function as insulators at electric fields below 100 V/m and conductors above 1000 V/m.
Implant behavior is metal-independent but geometry-dependent.
Incorrectly modeling implants as conductors in tES can cause over 50% error in induced field estimation.

Conclusions:

Metal implants can be modeled using constant conductivity, but the choice of model is critical.
Incorrect model selection leads to substantial errors in dosimetry assessment.
This study guides the selection of appropriate metal implant models for electrical stimulation scenarios.