El bromazepam altera el rendimiento durante el tiro al blanco pero no afecta al acoplamiento interhemisférico en la electroencefalografía del ritmo theta

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i9.18174

Palabras clave:

Electroencefalografía; Coherencia; Ritmo Theta; Bromazepam; Tiro al blanco.

Resumen

El bromazepam imita el efecto inhibidor del neurotransmisor ácido gamma-aminobutírico (GABA) y puede provocar un deterioro del rendimiento visuomotor. Sin embargo, pocos estudios han evaluado sus efectos sobre el acoplamiento cortical en las actividades de tiro al blanco. El presente estudio tuvo como objetivo analizar los efectos agudos de la administración de bromazepam en una tarea de tiro al blanco y la coherencia del ritmo theta del EEG entre las áreas corticales frontales, temporales y motoras en cuatro períodos de preparación de tiro. Así, se realizó un estudio cruzado y a doble ciego con 30 sujetos en dos condiciones: bromazepam (6 mg) y placebo, con análisis electroencefalográfico para estudiar simultáneamente la coherencia del ritmo theta en la corteza frontal, temporal y motora en una tarea de tiro al blanco; y las posibles interferencias de la administración de bromazepam. Los sujetos del grupo de bromazepam mostraron un menor rendimiento en la tarea en comparación con el placebo (p=0,001). Además, nuestro análisis mostró una disminución de la coherencia entre regiones del mismo hemisferio y un aumento de la coherencia del ritmo theta en regiones interhemisféricas de la corteza frontal, temporal y motora a diferentes intervalos en la preparación que precede al disparo (p=0,001). El uso de bromazepam puede influir en la ejecución de la tarea, posiblemente debido a la modulación neuroquímica, durante la toma de decisiones, el desarrollo de estrategias para preparar el tiro, así como la interferencia en el flujo de información a nivel de la atención durante la ejecución de la tarea.

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Publicado

27/07/2021

Cómo citar

FERNANDES, T. R. S. .; ROCHA, K. de M. .; GUPTA, D.; MARINHO, V.; MOURA, I.; FERNANDES, J. R. N. .; MAGALHÃES, F. E. X.; CARVALHO DA SILVA, V. N. .; ALVES, E. H. P. .; RIBEIRO, P.; VELASQUES, B.; BASTOS, V. H. do V. .; TEIXEIRA, S. S. . El bromazepam altera el rendimiento durante el tiro al blanco pero no afecta al acoplamiento interhemisférico en la electroencefalografía del ritmo theta. Research, Society and Development, [S. l.], v. 10, n. 9, p. e33110918174, 2021. DOI: 10.33448/rsd-v10i9.18174. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/18174. Acesso em: 30 jun. 2024.

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Ciencias de la salud