From extending lifespan to bolstering the immune system, the drug’s effects are only just beginning to be understood.
To tease apart brain regions involved in forming versus remembering memories, scientists engineered mice whose brain cells could be manipulated and tagged.
August 30, 2017|
RIKEN-MIT CENTER FOR NEURAL CIRCUIT GENETICS Researchers demonstrated that the mouse subiculum, a brain region associated with the hippocampus, is important for recalling certain types of memories, but it doesn’t appear to play a role in forming them. When they optogenetically turned off neurons within the subiculum, mice’s abilities to retrieve a memory they had previously formed was disrupted.
Some scientists think that brain circuits responsible for forming memories are the same as those necessary for retrieving them, write the authors in their report. These data, however, offer evidence to the contrary.
See D.S. Roy et al., “Distinct neural circuits for the formation and retrieval of episodic memories,” Cell, doi:10.1016/j.cell.2017.07.013, 2017.