Indication of Mental Health from Fingertip Pulse Waves and Its Application

<div>Pulse waves, attractor, Lyapunov exponents (“1st LE” to “4th LE,” in different colours, represent <i>λ</i><sub>1</sub> to <i>λ</i><sub>4</sub>, respectively) including the LLE (red).</div>

Journal of Healthcare Engineering

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Figure 5

Figure 5: Indication of Mental Health from Fingertip Pulse Waves and Its Application 