from Part V - Physiological Measures
Published online by Cambridge University Press: 12 December 2024
Surface electromyography (EMG) measurements provide a non-invasive way to measure physical behavior in a way that is more sensitive and less prone to bias compared to observational methods. This chapter covers the use of EMG in social and behavioral research. First, the biological underpinnings of muscle activity are briefly reviewed to give the reader a basic understanding of the signal being measured. Next, the steps for obtaining the EMG signal are covered, including equipment and signal processing. Finally, some common use cases of EMG measures in social and behavioral research are reviewed. With modern-day equipment, EMG measures can be collected both in the traditional laboratory setting and, when signal noise concerns are acknowledged, in the “real world.”
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