Physiological Measurements: ECG e EMG

Physiological techniques utilize a range of methodologies and instrumentation to measure and analyze physiological variables, providing quantitative data on functions . Some of the techniques we are currently using are the electrocardiogram (ECG), to record the electrical activity of the heart, and electromyography (EMG), to record the electrical activity of muscles. The use of ECG in the field of vitality forms is currently under development while the application of the EMG technique can be seen in the study conducted by Rizzolatti et al. (2021). This work has shown that a handshake made in a rude or gentle manner induces increased activation of the dorso-central insula. Electromyographic recording was used to profile muscle responses.

Physiological techiques
Figura 4. The first graph (A1) shows the mean response profiles of the handshake in the aggressive, gentle or neutral condition, while the second graph (A2) shows the mean intensity, both obtained by EMG. The other two graphs show the mean response profile (B1) and mean response intensity (B2) during a neutral handshake and the observation of angry, happy and neutral facial expressions (Rizzolatti et al. 2021).

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References
Rizzolatti, G., D’Alessio, A., Marchi, M., & Di Cesare, G. (2021). The neural bases of tactile vitality forms and their modulation by social context. Scientific Reports, 11(1), 9095.