Indication of Mental Health from Fingertip Pulse Waves and Its Application

Figure 2

Fingertip pulse wave (b), power spectra (d), attractor (a), and 4 LLEs ((c), where the calculation results are λ₁ = 5.53, λ₂ = −0.46, λ₃ = −5.26, and λ₄ = −17.09).

(a)

(b)

(c)

(d)