doi:10.1002/mma.3343engSebastian, Maria VictoriaNavascues, Maria AntoniaRuiz, C.Iso, J.M.A numerical power spectrum for electroencephalographic processingART-2016-89926The record of the oscillations of the electric potential of the human brain provides useful information about the mind activity at rest and during the achievement of sensory and cognitive processing tasks. The use of appropriate quantitative tools assigning numerical values to the observed variable is necessary to define good descriptors of the electroencephalogram, allowing comparisons between different recordings. In this line, we propose a numerical method for the spectral and temporal reconstruction of a brain signal. The convergence of the procedure is analyzed, providing results of the concerned approximation error. In a second part of the text, we use the methodology described to the quantification of the bioelectric variations produced in the brain waves for the execution of a test of attention related to military simulation.2016http://zaguan.unizar.es/record/6149410.1002/mma.3343http://zaguan.unizar.es/record/61494oai:zaguan.unizar.es:61494info:eu-repo/grantAgreement/ES/UZ/CUD2013-16MATHEMATICAL METHODS IN THE APPLIED SCIENCES 39, 16 (2016), 4680-4687All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess