Pulse-Wave Harmonics Flag MCI During Cognitive Stress: 2.6-Point Gap
A 2026 community study of 101 older adults found that pulse-wave harmonics changed in a more organized way during a subtraction task in cognitively intact participants than in people with MoCA-defined mild cognitive impairment: amplitude-coherence scores averaged 9.00 vs. 6.40, a 2.60-point gap on a 0-10 scale. Research Highlights Cognitive stress exposed the signal: resting …