This article describes the performance of Giant African Pouched Rats where reinforcement (reward) or extinction (no reward) conditions affected landmine identification. Accuracy deteriorated quickly in the absence of reinforcement, suggesting that reinforcement is essential.
Mahoney, Amanda; Durgin, Amy; Poling, Alan; Weetjens, Bart; Cox, Christophe; Tewelde, Tess; and Gilbert, Tekimiti
"Mine Detection Rats: Effects of Repeated Extinction on Detection Accuracy,"
Journal of Conventional Weapons Destruction: Vol. 16
, Article 22.
Available at: http://commons.lib.jmu.edu/cisr-journal/vol16/iss3/22