The psycho-acoustical aspects of marimba playing

The continuing evolution from traditional to modern marimba performance has ushered with it myriad challenges to the current generation of marimba players. In today's climate, modern marimba performers are dealing with a much greater palette of articulations.
One uniting issue among marimba performers: the core nature of a marimba is that it acts as an idiophone, and this leads every marimba player to the question of where to find space for the expression of all the musical elements and articulations needed to convey their musical intentions. Can certain deliberate physical movements lead the audience to a deeper understanding of the music — can a real or imagined acoustic difference derived from movement lead to a greater psychological appreciation of the performance?
My goal is to delve into the relationship between movement and sound during performance especially with regards to its visual and aural qualities as perceived by the audience. This study of movement and articulation is bringing new knowledge to the community already by its mere novelty, and the knowledge created by my research could be used for a better understanding between composers, performers and the audience.