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Hemispherics

Hemispherics

Hemispherics, el podcast de Fisioterapia y Neurorrehabilitación, presentado por Javier Sánchez Aguilar. En este podcast podrán encontrar:

• Reseñas de libros de neurociencia, neurorrehabilitación, fisioterapia.
• Comentarios de revisiones y artículos científicos relacionados con la fisioterapia y la neurorrehabilitación.
• Visibilización de investigadores/as.
• Exposición de temas específicos detallados sobre fisioterapia y neurorrehabilitación.
• Entrevistas a fisioterapeutas y especialistas en neurorrehabilitación.

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  • 22 episodes
  • fortnightly
  • Avg 1 hr 7 min
  • Spanish

Episodes 22

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  • S5 · E8
    Aug 9, 2025 · 27 min

    #82: Los apellidos del cerebro y el mito del cerebro bayesiano

    En este episodio exploramos las diversas formas en que se ha conceptualizado el funcionamiento del cerebro humano, guiados por las fascinantes metáforas divulgadas por el neuropsicólogo Javier Tirapu Ustárroz: el cerebro darwiniano (instinto y evolución), el skinneriano (aprendizaje por refuerzo), el popperiano (simulación mental y predicción), y el gregoriano (empatía y simulación social). Profundizamos luego en la controvertida hipótesis del "cerebro bayesiano", según la cual nuestro cerebro actuaría como un científico estadístico que actualiza constantemente sus creencias sobre el mundo combinando experiencias previas y nueva información sensorial. Apoyándonos en el provocador artículo de Madhur Mangalam, "The Myth of the Bayesian Brain" (2025), examinamos en profundidad las fortalezas y las debilidades de este paradigma tan influyente. Referencias del episodio: 1. Mangalam M. (2025). The myth of the Bayesian brain. European journal of applied physiology, 10.1007/s00421-025-05855-6. Advance online publication. https://doi.org/10.1007/s00421-025-05855-6 (https://pubmed.ncbi.nlm.nih.gov/40569419/). 2. Tirapu Ustárroz, J. (2008). ¿Para qué sirve el cerebro? Manual para principiantes. Editorial Alianza (https://www.calameo.com/books/00638959573c26c5b3fbc).

  • S5 · E7
    Jul 26, 2025 · 1 hr 48 min

    #81: Neurorrehabilitación somatosensorial en el ictus

    En este episodio nos adentramos en una dimensión tan esencial como olvidada de la recuperación neurológica: la sensibilidad. Exploramos con profundidad la neurofisiología de los sistemas sensoriales, los tipos de sensibilidad, las vías implicadas y los déficits somatosensoriales que pueden aparecer tras un ictus. Hablamos de evaluación clínica y neurofisiológica, de escalas, de estereognosia, de patrones exploratorios, y de la implicación cortical tras una lesión. Abordamos también las principales intervenciones terapéuticas, desde la estimulación eléctrica sensitiva (SAES) hasta el entrenamiento activo sensitivo, repasando la evidencia más actual y las claves para una rehabilitación sensitiva eficaz. Referencias del episodio: 1. Bastos, V. S., Faria, C. D. C. M., Faria-Fortini, I., & Scianni, A. A. (2025). Prevalence of sensory impairments and its contribution to functional disability in individuals with acute stroke: A cross-sectional study. Revue neurologique, 181(3), 210–216. https://doi.org/10.1016/j.neurol.2024.12.001 (https://pubmed.ncbi.nlm.nih.gov/39765442/). 2. Boccuni, L., Meyer, S., Kessner, S. S., De Bruyn, N., Essers, B., Cheng, B., Thomalla, G., Peeters, A., Sunaert, S., Duprez, T., Marinelli, L., Trompetto, C., Thijs, V., & Verheyden, G. (2018). Is There Full or Proportional Somatosensory Recovery in the Upper Limb After Stroke? Investigating Behavioral Outcome and Neural Correlates. Neurorehabilitation and neural repair, 32(8), 691–700. https://doi.org/10.1177/1545968318787060 (https://pubmed.ncbi.nlm.nih.gov/29991331/). 3. Carey, L. M., Matyas, T. A., & Oke, L. E. (1993). Sensory loss in stroke patients: effective training of tactile and proprioceptive discrimination. Archives of physical medicine and rehabilitation, 74(6), 602–611. https://doi.org/10.1016/0003-9993(93)90158-7 (https://pubmed.ncbi.nlm.nih.gov/8503750/). 4. Carey, L. M., Oke, L. E., & Matyas, T. A. (1996). Impaired limb position sense after stroke: a quantitative test for clinical use. Archives of physical medicine and rehabilitation, 77(12), 1271–1278. https://doi.org/10.1016/s0003-9993(96)90192-6 (https://pubmed.ncbi.nlm.nih.gov/8976311/). 5. Carey, L. M., & Matyas, T. A. (2005). Training of somatosensory discrimination after stroke: facilitation of stimulus generalization. American journal of physical medicine & rehabilitation, 84(6), 428–442. https://doi.org/10.1097/01.phm.0000159971.12096.7f (https://pubmed.ncbi.nlm.nih.gov/15905657/). 6. Carey, L., Macdonell, R., & Matyas, T. A. (2011). SENSe: Study of the Effectiveness of Neurorehabilitation on Sensation: a randomized controlled trial. Neurorehabilitation and neural repair, 25(4), 304–313. https://doi.org/10.1177/1545968310397705 (https://pubmed.ncbi.nlm.nih.gov/21350049/). 7. Carey, L. M., Abbott, D. F., Lamp, G., Puce, A., Seitz, R. J., & Donnan, G. A. (2016). Same Intervention-Different Reorganization: The Impact of Lesion Location on Training-Facilitated Somatosensory Recovery After Stroke. Neurorehabilitation and neural repair, 30(10), 988–1000. https://doi.org/10.1177/1545968316653836 (https://pubmed.ncbi.nlm.nih.gov/27325624/). 8. Carey, L. M., Matyas, T. A., & Baum, C. (2018). Effects of Somatosensory Impairment on Participation After Stroke. The American journal of occupational therapy : official publication of the American Occupational Therapy Association, 72(3), 7203205100p1–7203205100p10. https://doi.org/10.5014/ajot.2018.025114 (https://pubmed.ncbi.nlm.nih.gov/29689179/). 9. Chilvers, M., Low, T., Rajashekar, D., & Dukelow, S. (2024). White matter disconnection impacts proprioception post-stroke. PloS one, 19(9), e0310312. https://doi.org/10.1371/journal.pone.0310312 (https://pubmed.ncbi.nlm.nih.gov/39264972/). 10. Conforto, A. B., Dos Anjos, S. M., Bernardo, W. M., Silva, A. A. D., Conti, J., Machado, A. G., & Cohen, L. G. (2018). Repetitive Peripheral Sensory Stimulation and Upper Limb Performance in Stroke: A Systematic Review and Meta-analysis. Neurorehabilitation and neural repair, 32(10), 863–871. https://doi.org/10.1177/1545968318798943 (https://pmc.ncbi.nlm.nih.gov/articles/PMC6404964/#SM1). 11. Cuesta, C. (2016). El procesamiento de la información somatosensorial y la funcionalidad de la mano en pacientes con daño cerebral adquirido (https://burjcdigital.urjc.es/items/609ccf16-4688-0c23-e053-6f19a8c0ba23). 12. De Bruyn, N., Meyer, S., Kessner, S. S., Essers, B., Cheng, B., Thomalla, G., Peeters, A., Sunaert, S., Duprez, T., Thijs, V., Feys, H., Alaerts, K., & Verheyden, G. (2018). Functional network connectivity is altered in patients with upper limb somatosensory impairments in the acute phase post stroke: A cross-sectional study. PloS one, 13(10), e0205693. https://doi.org/10.1371/journal.pone.0205693 (https://pubmed.ncbi.nlm.nih.gov/30312350/). 13. De Bruyn, N., Saenen, L., Thijs, L., Van Gils, A., Ceulemans, E., Essers, B., Alaerts, K., & Verheyden, G. (2021). Brain connectivity alterations after additional sensorimotor or motor therapy for the upper limb in the early-phase post stroke: a randomized controlled trial. Brain communications, 3(2), fcab074. https://doi.org/10.1093/braincomms/fcab074 (https://pubmed.ncbi.nlm.nih.gov/33937771/). 14. Grant, V. M., Gibson, A., & Shields, N. (2018). Somatosensory stimulation to improve hand and upper limb function after stroke-a systematic review with meta-analyses. Topics in stroke rehabilitation, 25(2), 150–160. https://doi.org/10.1080/10749357.2017.1389054 (https://pubmed.ncbi.nlm.nih.gov/29050540/). 15. Kessner, S. S., Schlemm, E., Cheng, B., Bingel, U., Fiehler, J., Gerloff, C., & Thomalla, G. (2019). Somatosensory Deficits After Ischemic Stroke. Stroke, 50(5), 1116–1123. https://doi.org/10.1161/STROKEAHA.118.023750 (https://pubmed.ncbi.nlm.nih.gov/30943883/). 16. Ladera V, Perea MV. Agnosias auditivas, somáticas y táctiles. Rev Neuropsicol y Neurociencias. 2015;15(1):87–108 (http://revistaneurociencias.com/index.php/RNNN/article/view/82). 17. Laufer, Y., & Elboim-Gabyzon, M. (2011). Does sensory transcutaneous electrical stimulation enhance motor recovery following a stroke? A systematic review. Neurorehabilitation and neural repair, 25(9), 799–809. https://doi.org/10.1177/1545968310397205 (https://pubmed.ncbi.nlm.nih.gov/21746874/). 18. Lederman, S. J., & Klatzky, R. L. (1987). Hand movements: a window into haptic object recognition. Cognitive psychology, 19(3), 342–368. https://doi.org/10.1016/0010-0285(87)90008-9 (https://pubmed.ncbi.nlm.nih.gov/3608405/). 19. Meyer, S., De Bruyn, N., Lafosse, C., Van Dijk, M., Michielsen, M., Thijs, L., Truyens, V., Oostra, K., Krumlinde-Sundholm, L., Peeters, A., Thijs, V., Feys, H., & Verheyden, G. (2016). Somatosensory Impairments in the Upper Limb Poststroke: Distribution and Association With Motor Function and Visuospatial Neglect. Neurorehabilitation and neural repair, 30(8), 731–742. https://doi.org/10.1177/1545968315624779 (https://pubmed.ncbi.nlm.nih.gov/26719352/). 20. Miguel-Quesada, C., Zaforas, M., Herrera-Pérez, S., Lines, J., Fernández-López, E., Alonso-Calviño, E., Ardaya, M., Soria, F. N., Araque, A., Aguilar, J., & Rosa, J. M. (2023). Astrocytes adjust the dynamic range of cortical network activity to control modality-specific sensory information processing. Cell reports, 42(8), 112950. https://doi.org/10.1016/j.celrep.2023.112950 (https://pubmed.ncbi.nlm.nih.gov/37543946/). 21. Moore, R. T., Piitz, M. A., Singh, N., Dukelow, S. P., & Cluff, T. (2024). The independence of impairments in proprioception and visuomotor adaptation after stroke. Journal of neuroengineering and rehabilitation, 21(1), 81. https://doi.org/10.1186/s12984-024-01360-7 (https://pubmed.ncbi.nlm.nih.gov/38762552/). 22. Opsommer, E., Zwissig, C., Korogod, N., & Weiss, T. (2016). Effectiveness of temporary deafferentation of the arm on somatosensory and motor functions following stroke: a systematic review. JBI database of systematic reviews and implementation reports, 14(12), 226–257. https://doi.org/10.11124/JBISRIR-2016-003231 (https://pubmed.ncbi.nlm.nih.gov/28009677/). 23. Sharififar, S., Shuster, J. J., & Bishop, M. D. (2018). Adding electrical stimulation during standard rehabilitation after stroke to improve motor function. A systematic review and meta-analysis. Annals of physical and rehabilitation medicine, 61(5), 339–344. https://doi.org/10.1016/j.rehab.2018.06.005 (https://pubmed.ncbi.nlm.nih.gov/29958963/). 24. Stolk-Hornsveld, F., Crow, J. L., Hendriks, E. P., van der Baan, R., & Harmeling-van der Wel, B. C. (2006). The Erasmus MC modifications to the (revised) Nottingham Sensory Assessment: a reliable somatosensory assessment measure for patients with intracranial disorders. Clinical rehabilitation, 20(2), 160–172. https://doi.org/10.1191/0269215506cr932oa (https://pubmed.ncbi.nlm.nih.gov/16541937/). 25. Turville, M., Carey, L. M., Matyas, T. A., & Blennerhassett, J. (2017). Change in Functional Arm Use Is Associated With Somatosensory Skills After Sensory Retraining Poststroke. The American journal of occupational therapy : official publication of the American Occupational Therapy Association, 71(3), 7103190070p1–7103190070p9. https://doi.org/10.5014/ajot.2017.024950 (https://pubmed.ncbi.nlm.nih.gov/28422633/). 26. Turville, M. L., Cahill, L. S., Matyas, T. A., Blennerhassett, J. M., & Carey, L. M. (2019). The effectiveness of somatosensory retraining for improving sensory function in the arm following stroke: a systematic review. Clinical rehabilitation, 33(5), 834–846. https://doi.org/10.1177/0269215519829795 (https://pubmed.ncbi.nlm.nih.gov/30798643/). 27. Villar Ortega, E., Buetler, K. A., Aksöz, E. A., & Marchal-Crespo, L. (2024). Enhancing touch sensibility with sensory electrical stimulation and sensory retraining. Journal of neuroengineering and rehabilitation, 21(1), 79. https://doi.org/10.1186/s12984-024-01371-4 (https://pubmed.ncbi.nlm.nih.gov/38750521/). 28. Yilmazer, C., Boccuni, L., Thijs, L., & Verheyden, G. (2019). Effectiveness of somatosensory interventions on somatosensory, motor and functional outcomes in the upper limb post-stroke: A systematic review and meta-analysis. NeuroRehabilitation, 44(4), 459–477. https://doi.org/10.3233/NRE-192687 (https://pubmed.ncbi.nlm.nih.gov/31256086/). 29. Zamarro-Rodríguez, B. D., Gómez-Martínez, M., & Cuesta-García, C. (2021). Validation of Spanish Erasmus-Modified Nottingham Sensory Assessment Stereognosis Scale in Acquired Brain Damage. International journal of environmental research and public health, 18(23), 12564. https://doi.org/10.3390/ijerph182312564 (https://pubmed.ncbi.nlm.nih.gov/34886287/).

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