<p> Background</p><p> In recent Japanese museums, spaces for corridors, shops, restaurants and the like are increasing. However, it has not been clarified whether being in these spaces and doing variety of activities afforded by the spaces right after appreciation actually affect the memories of appreciated exhibition or not. In studies of memory, it is said that resting or lightly exercising after learning have a long-lasting effect on memory of what you have learned. We wonder if such an effect of activities after appreciation is also realized in the appreciation situation in museums, and affect the memory of what we have seen, that is, longer lasting impression.</p><p> This study examines whether the richness of memory of exhibition differs according to the post-appreciation environment that afford different activities, even though the exhibition is the same. In addition, this study further argues that there is physiological background for the effect of the post-appreciation activity.</p><p> Method</p><p> The experiments are conducted in the procedure : 1) Appreciation - 2) Activity - 3) Memory test. Three video clips were prepared for the appreciation procedures. As for the activities to be performed post-appreciation, three common behaviors in the museums were selected and carried out one for each session, i.e. A: Sitting calm, B: Walking, and C: Talking quietly. The above procedure is carried out three times in total and in randomized order of activities, i.e. three sessions, for each participant and we examined whether there is difference in richness of latent memory due to the Activity (A, B, C).</p><p> Furthermore, we measured Skin Conductance Level (SCL) during the activities, and examined whether, there is the relationship between activity and physiological condition.</p><p> Result</p><p> As a result of the memory test, we found that the score for Activity-A (Sitting calm) and Activity-B (Walking) are significantly higher than Activity-C (Talking) (p<. 05). When we interpret rich latent memory as impressiveness, we may say this result proved that the impressiveness of the video contents is different due to the post-appreciation activity.</p><p> As a result of SCL measuring, Activity-C (Talking) is accompanied by higher arousal than Activity-A (Sitting) and Activity-B (Walking). In other words, Activity-A (Sitting) and Activity-B (Walking) are more relaxing than Activity-C (Talking). Considering the results of the memory test, this result suggests that having a more relaxing environment after appreciation may help making memory last long.</p><p> Conclusion</p><p> Considering that Talking (Activity-C) gained the lowest score, we discuss that, while sitting or walking situation may afford the unconscious recall after the appreciation of the contents, it is disturbed by the continuous data input in talking situation. And that brought the serious difference in the richness of the memory of the contents, in other words, impression. This result also suggests the importance of appropriately inserting in-between environment with no exhibition, in order to make an impressive exhibition plan. And when the environment is relaxing such as making visitors quietly rest or walk, the memory after appreciation is likely to be rich and long-lasting.</p>