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¿Salvavidas del párkinson?: diseñan bolígrafo con IA capaz de detectar la enfermedad en sus inicios

"Es muy rentable y totalmente accesible para los países de bajos ingresos", explicó Jun Chen, coautor de la presente investigación.

Un bolígrafo impreso en 3D relleno de tinta magnética podría ayudar a detectar en personas la enfermedad de Parkinson, según un artículo publicado el lunes en la revista científica Nature Chemical Engineering.

Cuando se aplica el dispositivo a una superficie, las propiedades magnéticas de la punta cambian. Esto, junto con el movimiento dinámico de la tinta durante la escritura a mano, produce un voltaje en una bobina metálica dentro del boli, lo que da lugar a señales de corriente que se registran. El equipo notó que se podría captar con precisión los movimientos mediante las señales generadas al escribir o dibujar líneas onduladas y espirales, tanto sobre superficies como en el aire.

A continuación, utilizaron diversos modelos de aprendizaje automático —un tipo de inteligencia artificial— para clasificar las señales de escritura de 16 participantes, tres de los cuales padecían párkinson. Fue así cómo los investigadores descubrieron que, tras el entrenamiento, un modelo era capaz de distinguir a los pacientes con esa enfermedad de los participantes sanos con una precisión media del 96,22 %.

"Es muy rentable y totalmente accesible para los países de bajos ingresos", explicó Jun Chen, profesor de la Universidad de California en Los Ángeles (EE.UU.) y coautor del estudio, detallando que el sistema estaría vinculado a una aplicación para teléfonos móviles que analizaría los resultados.