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Related Experiment Video

Updated: May 24, 2025

Behavioral Determination of Stimulus Pair Discrimination of Auditory Acoustic and Electrical Stimuli Using a Classical Conditioning and Heart-rate Approach
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Civilian "Stun" Guns: Neural or Aural Stimulation?

Mark W Kroll, Hugh Pratt, Klaus K Witte

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |March 5, 2025
    PubMed
    Summary

    Civilian stun guns do not stimulate nerves as advertised. Their primary effect is a loud noise, not incapacitation, raising safety concerns for self-defense devices.

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    Area of Science:

    • Forensic Science
    • Biomedical Engineering
    • Electrical Engineering

    Background:

    • Electrical stun guns are marketed for civilian self-defense.
    • Advertisements claim significant neurological and musculoskeletal effects.

    Purpose of the Study:

    • Investigate the electrical outputs of popular civilian stun guns.
    • Compare these outputs to established safety and efficacy standards.

    Main Methods:

    • Acquired 3 samples of 10 best-selling stun gun models.
    • Measured electrical charge per pulse, current, and arcing characteristics.
    • Assessed sound pressure levels generated by electrode arcing.

    Main Results:

    • Average charge per pulse (0.91 ± 0.75 µC) was below the 7 µC threshold for nerve stimulation.
    • Equivalent utility-frequency outputs (0.64 ± 0.52 mArms) were perceptible but not painful.
    • Generated extremely high sound pressure levels (108.1 ± 2.8 dBA) due to electrode arcing.

    Conclusions:

    • Civilian stun guns lack the electrical output for nerve stimulation.
    • The 'stunning' effect is likely primarily auditory, not physiological.
    • Further investigation into the safety and efficacy of these devices is warranted.