Scientists discover mechanism for transient memory lapse In a landmark neurobiology study, scientists from Scripps Research have discovered a memory gating system that employs the neurotransmitter dopamine to direct transient forgetting, a temporary lapse of memory which spontaneously returns. The study adds a new pin to scientists' evolving map of how learning, memory and active forgetting work, says Scripps Research Neuroscience Professor Ron Davis, Ph.D. This is the first time a mechanism has been discovered for transient memory lapse. There's every reason to believe, because of conservation biology, that a similar mechanism exists in humans as well." Ron Davis, Ph.D., Neuroscience Professor, Scripps Research