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BioMed Research International
Volume 2014, Article ID 273932, 6 pages
Research Article

Fetus Sound Stimulation: Cilia Memristor Effect of Signal Transduction

1Department of Obstetrics and Gynecology “Narodni front”, Kraljice Natalije Street 62, 11000 Belgrade, Serbia
2Belgrade University Medical School, Doktora Subotica Street 8, 11000 Belgrade, Serbia
3Institute for Obstetrics and Gynecology, Clinical Center of Serbia, Majke Jevrosime 8, 11000 Belgrade, Serbia
4Institute for Experimental Phonetics and Speech Pathology, Gospodar Jovanova Street 35, 11000 Belgrade, Serbia
5Life Activities Advancement Center, Gospodar Jovanova Street 35, 11000 Belgrade, Serbia
6Biomedical engineering, Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije Street 8, 11000 Belgrade, Serbia

Received 24 November 2013; Revised 16 January 2014; Accepted 19 January 2014; Published 26 February 2014

Academic Editor: Irma Virant-Klun

Copyright © 2014 Svetlana Jankovic-Raznatovic et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. This experimental study evaluates fetal middle cerebral artery (MCA) circulation after the defined prenatal acoustical stimulation (PAS) and the role of cilia in hearing and memory and could explain signal transduction and memory according to cilia optical-acoustical properties. Methods. PAS was performed twice on 119 no-risk term pregnancies. We analyzed fetal MCA circulation before, after first and second PAS. Results. Analysis of the Pulsatility index basic (PIB) and before PAS and Pulsatility index reactive after the first PAS (PIR 1) shows high statistical difference, representing high influence on the brain circulation. Analysis of PIB and Pulsatility index reactive after the second PAS (PIR 2) shows no statistical difference. Cilia as nanoscale structure possess magnetic flux linkage that depends on the amount of charge that has passed between two-terminal variable resistors of cilia. Microtubule resistance, as a function of the current through and voltage across the structure, leads to appearance of cilia memory with the “memristor” property. Conclusion. Acoustical and optical cilia properties play crucial role in hearing and memory processes. We suggest that fetuses are getting used to sound, developing a kind of memory patterns, considering acoustical and electromagnetically waves and involving cilia and microtubules and try to explain signal transduction.