Evaluate Laser Needle Effect on Blood Perfusion Signals of Contralateral Hegu Acupoint with Wavelet Analysis

Figure 5

Change of energy distribution in left Hegu acupoint. The energy distribution in every frequency band was symbolized as 𝑃_𝑖(𝑖=1,2,3,…,8), and for every FR, the change of energy distribution from R1 to R8 was defined as (𝑃_𝑖−𝑃₁)/𝑃₁(𝑖=1,2,3,…,8). All data expressed as Mean ± SEM. NH-S: Non-Hegu stimulation; H-S: Hegu acupoint stimulation; (a) shows the frequency interval of 0.0095–0.02 Hz; (b) shows the frequency interval of 0.02–0.06 Hz; (c) shows the frequency interval of 0.06–0.15 Hz; (d) shows the frequency interval of 0.15–0.4 Hz; (e) shows the frequency interval of 0.4–1.6 Hz; *𝑃<0.05, H-S versus NH-S.

(a)

(b)

(c)

(d)

(e)