L'activitat electroencefalogràfica associada a la relació càrrega cognitiva, estrès i reconeixement d'emocions en un grup focal de professors universitaris de ciències experimentals
DOI:
https://doi.org/10.1344/joned.v5i2.46837Paraules clau:
Càrrega cognitiva, Electroencefalografia, Ensenyament de les ciències, Estrès, Funcions executives, Reconeixement d'emocionsResum
Aquest article presenta el registre i l'anàlisi de l'activitat elèctrica de senyals EEG en situacions de càrrega cognitiva, estrès i reconeixement d'emocions com a part d'una investigació doctoral que es va fer amb un grup focal de professors universitaris de ciències experimentals colombians. Un dels propòsits de lestudi va ser analitzar els canvis fisiològics de lactivitat elèctrica del cervell a causa de les activitats densenyament que impliquen la càrrega cognitiva, lestrès i el reconeixement de les emocions que desencadena aquest procés per al grup de professors. Per a l'adquisició dels ritmes dels senyals EEG es va utilitzar el dispositiu Emotiv EPOC+ i un grup de proves psicomètriques adaptades per induir senyals en relació amb tasques associades a l'exercici docent, com ara l'atenció i la memòria. Es va utilitzar la densitat de potència espectral com a funció matemàtica i els senyals amb PSD, entropia de permutació i entropia aproximada i es va fer una classificació amb k-NN veïns més propers. Es conclou que hi va haver un predomini de ritmes theta-alfa a la majoria dels docents de l'estudi, a més es van identificar activitats d'atenció, memòria de treball i altres funcions executives amb un rendiment del 75.1 ± 3.05% amb el classificador i, finalment, reconeixen emocions mixtes, algunes predictores d'estrès laboral com van ser ansietat i tensió que incideixen en l'exercici docent i el desenvolupament professional.
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Drets d'autor (c) 2025 Carolina María González Velásquez, Bartolomé Vázquez Bernal, María Ángeles De las Heras Pérez, Johnatan Alexander Mena Salcedo, Mateo Osorio Higuita, Juan Pablo Murillo Escobar
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