Acceso usuarios
Juan Ignacio Bertoli, Maria del Rosario Quian, Matías Serafini, Jessica Mariel Sánchez Beisel, Ignacio Ferrelli, Sabrina Monsalvo, Lucía Romero, Alberto Andrés Iorio, Jorge Mario Andreau
Introduction. The hemispheric asymmetry model for encoding/retrieval (HERA), stablishes a preferential activity of the left prefrontal cortex (LPFC) during encoding and the right prefrontal cortex (RPFC) during retrieval. Furthermore, listening to music generates a greater activation of the RPFC over the LPFC. Therefore, generating a competition for the resources on the RPFCwould be an indirect method to test HERA model. We hypothesize that: Listening to music during memory retrieval (RM) would lead to a decrease in performance compared to listening to music during encoding (EM), since in the first case the right hemisphere would be engaged in both tasks. Objectives. The aim of this study was to validate a novel procedure to indirectly study HERA model. Methods. Experimentswere performed online.Subjects complete and arousal, personality tests and learned a list of words. The whole procedure wasdivided into three conditions: (1) Encoding with music/recall without music (EM), (2) Encoding without music/recall with music. (RM) (3) Encoding and recall without music (CG Control group). Results. Our preliminary data showedno effect of music on memory retrieval. Nevertheless, we found an effect of music during encoding. In Addition, wefound that both the level of arousal and personality traitspartly explain the differences betweenconditions. In EM, subjects withmedium arousal and introvertion had a lower rate of word loss between immediate and delayed recall. Discussion. Even thoughour preliminary results do not confirm HERA model, we would need to increase our sample to increase the statistical power.
