Is chemical memory transfer due to shock or behavior training?

A memory transfer experiment was performed to determine whether the transfer effect is due to stress associated with the foot shock or to the specific behavioral training. Recipient animals were significantly better in the 'jump-out' testing than either the shock-control recipients or the control recipients, but the shock-control recipients performed significantly better than the control recipients. Foot shock has an effect on the transfer phenomena but is not responsible for the entire effect.