Jonathon Crystal Discusses His Study on Episodic Memory Replay in Animals (video) Indiana University Share Print E-Mail Loading video... Caption IU researchers led by Jonathon Crystal reported the first evidence that non-human animals can mentally replay past events from memory May 10, 2018, in the journal Current Biology. The ability to test human types of memory in rats will strengthen the search for drugs to treat Alzheimer's disease. Credit Indiana University Usage Restrictions Credit Indiana University Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.