In this experiment, participants are presented with three "before" and three "after" images of towers made of spaghetti and playdough. Each "before" image must be matched with an "after" image. The aim is to assess similarity between these towers, to determine how effectively autistic, non-autistic, and neurodiverse (mixed) "chains" of participants communicate by observing each other while building the towers. This is repeated for all of the images in the chains. (See README for a description of how these images were generated).