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2020, Number 2

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Invest Medicoquir 2020; 12 (2)

Neurodynamics and brain neuroplasticity in the blind

Vega TH, Pérez LNM, Santos MÁM

Language: Spanish
References: 25
Page:
PDF size: 302.72 Kb.


ABSTRACT

Introduction. The present investigation tries to confirm the hypothesis that, in the blind, due to the powerful stimulus that discriminative tactile perception represents in the sensoperceptive knowledge of objective reality, there must be a functional level of cerebral cortical neurodynamics superior to that presented by a control sample of healthy seers. explored using the stesiometric neurodynamic method. Methods. A cross-sectional, explanatory, non-experimental study was conducted on a sample of 15 blind subjects selected from the National Center of the National Association of the Blind and a sample of 15 sighted control subjects in the period from March 2017 to August of the same year. In both groups, the exploration of cerebral cortical neurodynamics was carried out using the stesiometric neurodynamic method, applying both exploration modalities: the physical modality and the psychic modality. MRI of the skull was also performed. For the processing of the data, descriptive summary measures were used: mean and standard deviation for the quantitative variables and the percentage for the qualitative variables. Results. The state of cerebral cortical neurodynamics in the blind sample was of a higher functional level than in the control sample in both modalities of exploration, physics and psychics of the stereoscopic neurodynamic method, in addition to the fact that cortical neurodynamics in the blind did not It was influenced by aging as in the case of controls, as well as that the dialectical interrelation between neurodynamics and neuroplasticity, increased in the blind sample by the development of tactile perception from an early age and maintained for time for years, seems to be the cause of the difference observed regarding controls. Conclusions. It is shown that the development of discriminative tactile perception in the blind plays a fundamental role in the development of cortical neuroplasticity and neurodynamics that differentiates them from healthy sighted subjects.


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