{"ok":true,"nota":{"id":"a76c8ca5870cc222","slug":"las-senales-externas-ayudan-a-caminar-en-parkinson-pero-el-cerebro-rea-a76c8c","titulo":"Las señales externas ayudan a caminar en Parkinson, pero el cerebro reacciona distinto según el paciente","resumen":"Investigadores usaron electroencefalografía portátil para medir la actividad de la corteza motora mientras pacientes con Parkinson caminaban con pistas visuales o sonoros rítmicos. Compararon a quienes sufren congelamiento de la marcha con quienes no lo sufren.","fuente":"medrxiv","fuenteNombre":"medRxiv · preprints","color":"#1f7a4d","autor":"Ma, L., Miura, M., Talu, I., Cross, K. A.","url":"https://www.medrxiv.org/content/10.64898/2026.10.19.26365651v1?rss=1","imagen":"/hoy/portada/a76c8ca5870cc222","tema":"salud","subtemas":["parkinson","congelamiento de la marcha","rehabilitación","electroencefalografía","neurociencia del movimiento"],"entidades":["Parkinson"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-21T00:00:00.000Z","indexTs":"2026-10-22T04:37:56.220Z","hash":"97648ab1d1780658ac1aafc5bf5dfde809cedb0d42de47ceb627c41f6d529699","tsa":{"time":"Oct 22 04:38:37 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Muchas personas con Parkinson usan pistas visuales o ritmos sonoros para caminar mejor, pero la respuesta varía mucho de un paciente a otro. Entender por qué ayuda a algunos y no a otros podría permitir rehabilitaciones más personalizadas, algo que el paciente y su familia notan en el día a día. Es un estudio con muestra reducida y todavía no define un tratamiento aplicable.","quienFirma":"medRxiv · preprints","confianza":"preprint","consulta":null},"sello":{"hash":"97648ab1d1780658ac1aafc5bf5dfde809cedb0d42de47ceb627c41f6d529699","sello":"2d217f96b06d8fabc02da13c7ee18a9ab9c6abc99374b3a35714b5d4a805187b","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6573763,"aleatorio":"ac1ab9766ef209323093f9521e7402b29370fa8f04af200361451518fae9c9b2","tiempo":"2026-10-22T04:38:30.000Z"},"nist":{"cadena":2,"pulso":1994087,"salida":"2CAE0B0247F8B2C1365D5848B4971A88B86F8096596AB659C9B46851CC37B71B43230BE62392778D57CA4D0DAE3440419DC67D4E27A84A89E3AA5B314736F2A3","tiempo":"2026-10-22T04:38:00.000Z"},"noAntes":"2026-10-22T04:38:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 22 04:38:37 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Sensorimotor cortex activity during cued gait differs in Parkinson's freezers and non-freezers","descripcion":"Gait impairments are a major contributor to disability in patients with Parkinson's disease despite dopaminergic and neuromodulation therapies. External cues (e.g., visual targets, rhythmic auditory sounds) are commonly used to improve gait quality and reduce freezing of gait (FOG), yet their effectiveness varies across patients and contexts. Improved understanding of the neural mechanisms of cueing benefits is essential to personalize rehabilitation strategies and improve outcomes. We use mobile electroencephalography (EEG) to test the hypothesis that cues improve gait through engagement of voluntary motor control mechanisms to compensate for impaired gait automaticity. In addition, we inve","pubDate":"2026-10-21","url":"https://www.medrxiv.org/content/10.64898/2026.10.19.26365651v1?rss=1"},"indexado":"2026-10-22T04:37:56.220Z"}}