Design and testing of a sensor-based prototype for measuring the cognitive status through finger force modulation

Authors

  • Nicole Morresi Università Politecnica delle Marche
  • Giuseppe Pandarese
  • Roberta Bevilacqua
  • Gian Marco Revel
  • Sara Casaccia

DOI:

https://doi.org/10.21014/actaimeko.v14i2.2099

Keywords:

Mild cognitive impairment, force measurement, load cells, cognitive training

Abstract

This study presents a preliminary prototype of a sensor-based system for assessing cognitive status through finger force modulation. The system integrates strain-gauge load cells within a game-like interface, prompting users to apply and maintain specific force levels using their index finger. The resulting force-time profiles are analyzed and compared to a template curve, using Dynamic Time Warping (DTW) and Partial Curve Mapping (PCM), generating a Similarity Index (SI) that quantifies task accuracy. A thresholding system classifies participants into cognitive status levels (High, Medium, Low). The sensing platform was calibrated using standard weights to ensure reliable force measurement. The prototype was tested on 24 participants (16 young adults and 8 seniors) and results showed that PCM outperforms DTW with the 80 % of young adults achieved a "High" cognitive status, while among seniors, 79 % were classified as "Medium" and 6 % as "Low”. These findings confirm that age-related motor variability can reflect underlying cognitive differences. The proposed system demonstrates potential for non-invasive, remote cognitive assessment and supports future development of digital tools for aging populations and individuals diagnosed with Mild Cognitive Impairment (MCI) or dementia (PwD).

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Published

2025-06-10

Issue

Vol. 14 No. 2 (2025)

Section

Research Papers

License

Copyright (c) 2025 Nicole Morresi, Giuseppe Pandarese, Roberta Bevilacqua, Gian Marco Revel, Sara Casaccia

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