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Sensación de tracción ilusoria en adultos mayores asociada con la función cognitiva más allá de la sensibilidad
IEEE transactions on haptics
|January 16, 2026
Resumen
Las mujeres mayores muestran una menor sensibilidad a la sensación de tracción ilusoria. Esta ilusión se debilita con el envejecimiento, especialmente cuando la función cognitiva disminuye, lo que resalta los roles del género y la cognición.
Área de la Ciencia:
- Neurociencia
- Percepción Sensorial Humana
- Gerontología
Sus antecedentes:
- Las sensaciones de tracción ilusoria por vibraciones asimétricas de las yemas de los dedos se utilizan para estudiar el procesamiento sensoriomotor y las interfaces hápticas.
- La reducción de la sensibilidad a esta ilusión en mujeres mayores sugiere que el envejecimiento y el género influyen en el fenómeno.
Objetivo del estudio:
- Investigar los roles de las funciones somatosensoriales y cognitivas en las sensaciones de tracción ilusoria.
- Examinar específicamente las contribuciones del envejecimiento y las diferencias de género a esta ilusión sensorial.
Principales métodos:
- Participaron sesenta adultos mayores (30 hombres, 30 mujeres, de 63 a 80 años).
- Los participantes se sometieron a siete evaluaciones, incluida la sensibilidad a la sensación de tracción ilusoria y diversas funciones somatosensoriales y cognitivas.
- La capacidad cognitiva general se evaluó mediante el Mini-Examen del Estado Mental (MMSE).
Principales resultados:
- Las mujeres mayores demostraron una sensibilidad significativamente menor a la sensación de tracción ilusoria en comparación con los hombres.
- Si bien la edad no afectó directamente la ilusión, la función cognitiva (puntuaciones del MMSE) mostró un efecto indirecto.
- Factores como la longitud de la mano y el rendimiento en la tarea de ajuste paralelo no mediaron las diferencias de género observadas en la sensibilidad a la ilusión.
Conclusiones:
- La sensación de tracción ilusoria se debilita con el envejecimiento, particularmente cuando se acompaña de deterioro cognitivo.
- El género y la función cognitiva son factores significativos que contribuyen a la variabilidad individual en esta ilusión sensorial.
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