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Related Experiment Video

Updated: Jan 9, 2026

Combined Transcranial Magnetic Stimulation and Electroencephalography of the Dorsolateral Prefrontal Cortex
07:42

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Arbitrary Waveform Multi-Lead Temporal Interference Stimulation.

Lukas Geisshuesler, Elisa Maria Kaufmann, Julian Piller

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 3, 2025
    PubMed
    Summary
    This summary is machine-generated.

    A new multi-lead arbitrary waveform system enhances temporal interference stimulation (TIS) for precise electrical therapies. This advanced TIS technology offers greater control over stimulation location and efficiency for potential nerve, muscle, and cardiac applications.

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    Area of Science:

    • Biomedical Engineering
    • Neuroscience
    • Electrical Engineering

    Background:

    • Temporal interference stimulation (TIS) offers spatially selective deep brain stimulation.
    • Current TIS systems are limited by two leads and sinusoidal signals.
    • Multi-lead and arbitrary waveform capabilities can improve TIS control and efficiency.

    Purpose of the Study:

    • To present a novel therapeutic system for multi-lead arbitrary waveform TIS.
    • To enhance spatial control and stimulation efficiency beyond conventional TIS methods.
    • To explore advanced electrical therapies using TIS.

    Main Methods:

    • Developed a TIS system using Direct Digital Synthesis (DDS) IC and a Howland current pump.
    • Generated arbitrary waveforms with a frequency range of 100Hz to 1.5MHz and current up to 80mA.
    • Evaluated the system in vitro using saline solution to characterize 2D interference patterns.

    Main Results:

    • Achieved a wide frequency range (100Hz-1.5MHz) and current output (0-80mA).
    • Demonstrated generation of short rectangular pulses (10μs) using multiple harmonics.
    • In vitro experiments confirmed consistent and spatially precise temporal interference patterns.

    Conclusions:

    • The novel multi-lead arbitrary waveform TIS system provides enhanced spatial control.
    • The system's capabilities exceed current TIS research limitations.
    • This technology holds significant potential for advanced electrical therapies beyond deep brain stimulation.