| Scent discrimination vs scent imprinting
I thought this would be an interesting topic
Did not put in the detection dog section because I don't think of detection dogs as taking a scent article and finding target scent rather they are imprinted on targets and proofed off of scents that may be associated with but are not an integral part of the target (e.g., PVC tubes, gloves, etc.).
Anybody know of research showing the physiological difference between a dog working with a scent article vs. looking for a target scent on command?
Last I heard, the consideration was the frontal sinuses *stored* target scent from the article for a reference comparison. Any insights? There is a lot of superstition about "when to rescent" a trailing dog - e.g., after a drink, after a rest, etc. etc. | 
