ABSTRACT
In the ecological view, environmental properties structure energy arrays so as to provide information about those properties to a perceiver. The experiment attempts to evaluate the effect of mass distribution of the object on auditory perception of length on a set of objects in which inertial properties are decoupled from geometric properties. The 15 objects used in this experiment were constructed from PVC pipe. A given object consisted of two layers of PVC pipe such as an outer shell and an inner shell. In the most generic object design, the inner shell was filled with lead shot, sealed at both ends, wrapped in foam padding and inserted into the outer shell which was also sealed at both ends. Rods and dropping apparatus were occluded from the participant by a curtain. The participant reported perceived length by magnitude production. They adjusted the distance of a moveable flag to correspond to the perceived length of the rod.
