Learning about residual odor

Letting Syn tell us about residual odor.

This first trial has six empty containers. There is nothing at all inside the cans.  What we expected and what Syn told us are two entirely different things.

Syn indicated on container # 6. In the three previous trials the target order was placed in container #6.



Notice how on the next trial she hesitates at container # 6, and looks to Sue for acknowledgment. When none is forthcoming she moves on to what we considered to be a false positive on container # 5.




Then, Syn indicates container # 4. False positive? Or residual scent from an earlier test?





Before leaving this wheel, we asked Lily  " Which one?"  Lily indicates container # 6.