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Efectos de dosis bajas de alcohol sobre la memoria declarativa en humanos / Effects of low doses of alcohol on declarative memory in humans
BRÍÑEZ-HORTA, JOSÉ ARTURO; OYUELA-VARGAS, RAÚL.
  • BRÍÑEZ-HORTA, JOSÉ ARTURO; Pontificia Universidad Javeriana. Bogotá. CO
  • OYUELA-VARGAS, RAÚL; Pontificia Universidad Javeriana. Bogotá. CO
Univ. psychol ; 10(3): 923-935, sep. 2011. ilus, tab
Article in Spanish | LILACS-Express | LILACS | ID: lil-650117
RESUMEN
Se evaluó el efecto de 0, 0.035, 0.150, 0.300 g de alcohol sobre 2 componentes de la memoria explícita o declarativa, en 16 participantes, hombres y mujeres, mediante la aplicación de la prueba de textos del Weschler-III (WMS-III), utilizando un diseño factorial 2 x 4 de medidas repetidas contrabalanceadas. No se encontraron diferencias entre los sexos, pero sí entre las dosis, siendo 0.150 g de alcohol/kg de peso corporal la que más decrementó el recuerdo de episodios y de temas, especialmente a mediano plazo, con tamaños de los efectos de 43.9 y 62.9 %, respectivamente. Estos resultados confirman que el alcohol, aun en dosis bajas, deteriora más el componente semántico del recuerdo explícito, aproximadamente media hora después de su consumo.
ABSTRACT
This study assessed the effect of low doses of alcohol (0, 0.035, 0.150, 0.300 g) on two elements of explicit or declarative memory, in 16 participants, 8 women and 8 men, with The Weschler Memory Scale III Text Test. A factorial 2 * 4 counterbalanced with repeated measures design was used. There were no statistically significant differences by gender, but there were differences among doses, specially 0.150 g / kg., which reduced episodic and semantic retrieval, between 43.9 and 62.9 % of effect strength, in intermediate term memory. These results provided evidence that alcohol in low doses has a more pronounced effect in semantic, rather than episodic memory, in the middle term.

Full text: Available Index: LILACS (Americas) Language: Spanish Journal: Univ. psychol Journal subject: Psicolog¡a Year: 2011 Type: Article Affiliation country: Colombia Institution/Affiliation country: Pontificia Universidad Javeriana/CO

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Full text: Available Index: LILACS (Americas) Language: Spanish Journal: Univ. psychol Journal subject: Psicolog¡a Year: 2011 Type: Article Affiliation country: Colombia Institution/Affiliation country: Pontificia Universidad Javeriana/CO