映像と音楽の相互作用における記憶促進要因

Previous studies examined memories of video clips under the condition of affects combination of pictures and music. Video clips, which were combined with music in same impressions, were easy to remember their contents. The present study aimed to examine the memory facilitation about pictures in two perspectives, the strength of affects and the distribution of the processing recourses. Participants were 39 undergraduate volunteers, who were divided into three experimental conditions randomly. Experimental condition was combinations of video clips and music eliciting refreshing and sad moods; Congruent condition that an impression to a video clip was congruent to that of a music piece, Incongruent condition that an impression to a video clip was incongruent to that of a music piece, and Control condition that only a video clip was presented. All participants conducted disturbance condition and no-disturbance condition for each emotional stimulus. In the disturbance condition, they responded to dot-probe presented on video clips by button-pressing in order to disturb the processing for video clips.

For refreshing mood stimulus, recall rates for the congruent condition and the control condition were a nearly same level, and then the memory facilitation in the congruent condition was not observed. This is why refreshing moods were strongly elicited in both the congruent and the control condition. On the other hand, recall rates were not different among conditions for sad mood stimulus. Sad clips were easy to remember as episode memory because of their rich contents. These results suggested that the strength of affect and the distribution of the processing resources influenced on memory facilitation in a complementary style.