Marín-Picado, B., Rodríguez-Villagra, O.A. and González Flores, L.C. 2025. Brain electrical activity of information maintenance mechanisms in working memory: a systematic review. Costa Rican Journal of Psychology. 44, 1 (Jun. 2025), 1–31. DOI:https://doi.org/10.22544/rcps.v44i01.13.