Topographical distribution of the cortical response of the somatosensorial evoked potencial of the posterior tibial nerve

Authors

  • Ernesto Cruz Menor Especialista de primer grado en Fisiología Normal y Patológica, Hospital General Docente "Abel Santamaría Cuadrado". Pinar del Río.
  • Yunit Hernández Rodríguez Especialista de primer grado en Fisiología Normal y Patológica, Facultad de Ciencias Médicas de Pinar del Río.
  • Marlen Cruz Menor Especialista de primer grado en Fisiología Normal y Patológica, Hospital General Docente "Abel Santamaría Cuadrado". Pinar del Río.
  • Juan M. Riol Lozano Especialista de primer grado de Neurología, Hospital General Docente "Abel Santamaría Cuadrado". Pinar del Río.

Abstract

The cortical response of the somatosensorial evoked potential of the posterior tibial nerve has shown, in different research works, a great variability in terms of the results obtained by different authors. The aims of this paper were to evaluate in a sample of healthy adult individuals the topographical distribution of the cortical response of the somatosensorial evoked potential of the posterior tibial nerve by using a protocol registration with 19 derivations from the International System 10/20 in the MEDICID-4 team. Eighteen adult individuals were studied. In each individual the cortical response was P40,  remaining the 19 registration canals, modifying the filter between 0.5 and 300 Hz, and the sampling frequency was modified to 1000 Hz. Results show a maximum amplitude of the P40 in the middle line. In addition, simultaneously, such response is registered in the central parietal ipsilateral region, with no great intraindividual and interindividual variability. As a conclusion, the stimulation of the tibial nerve and peak P40 showed a cortical central parietal distribution in the middle line, as well as ipsilaterally, with maximum amplitude in the latter. P40 was obtained paradoxically with a greater amplitude towards the same region of the stimulated site.

Downloads

Download data is not yet available.

Downloads

How to Cite

1.
Cruz Menor E, Hernández Rodríguez Y, Cruz Menor M, Riol Lozano JM. Topographical distribution of the cortical response of the somatosensorial evoked potencial of the posterior tibial nerve. Rev Ciencias Médicas [Internet]. 2012 Oct. 9 [cited 2025 Aug. 29];10(3):1-10. Available from: https://revcmpinar.sld.cu/index.php/publicaciones/article/view/266

Issue

Vol. 10 No. 3 (2006)

Section

ORIGINAL ARTICLES

License

Authors who have publications with this journal agree to the following terms: Authors will retain their copyrights and grant the journal the right of first publication of their work, which will be publication of their work, which will be simultaneously subject to the Creative Commons Attribution License (CC-BY-NC 4.0) that allows third parties to share the work as long as its author and first publication in this journal are indicated.

Authors may adopt other non-exclusive license agreements for distribution of the published version of the work (e.g.: deposit it in an institutional telematic archive or publish it in a volume). Likewise, and according to the recommendations of the Medical Sciences Editorial (ECIMED), authors must declare in each article their contribution according to the CRediT taxonomy (contributor roles). This taxonomy includes 14 roles, which can be used to represent the tasks typically performed by contributors in scientific academic production. It should be consulted in monograph) whenever initial publication in this journal is indicated. Authors are allowed and encouraged to disseminate their work through the Internet (e.g., in institutional telematic archives or on their web page) before and during the submission process, which may produce interesting exchanges and increase citations of the published work. (See The effect of open access). https://casrai.org/credit/