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Figure 4 | BioMedical Engineering OnLine

Figure 4

From: Biomedical engineering meets acupuncture - development of a miniaturized 48-channel skin impedance measurement system for needle and laser acupuncture

Figure 4

First analysis of changes of impedance during contact-free violet laser stimulation. Top: Circular chart - violet laser acupuncture, details see Figure 3. Bottom: Changes in electrodermal impedance immediately following the onset of violet laser stimulation in specific registration sites only. Three channels surrounding the acupoint were randomly chosen. In this measurement, the 'on-effect' of the violet laser is clearly demonstrated.

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