A small US study indicates that electromagnetic stimulation of specific regions of the brain may improve the ability to remember. Researchers are already speculating whether similar techniques could help people with memory disorders and / or reduce memory loss in later life.
Mundasad, S. (2014). Electrical brain stimulation ‘boosts memory’. London: BBC Health News, August 29th 2014.
This relates to:
Full Text Link (Note: This article requires a suitable Athens password, a journal subscription or payment for access).
Wang, JX. Rogers, LM. [and] Gross, EZ. [et al]. (2014). Targeted enhancement of cortical-hippocampal brain networks and associative memory. Science. August 29th 2014, 345(6200), 1054-1057.
Animal DBS research, possibly also of interest:
Jeong da, U. Lee, JE. Lee, SE. (2014). Improvements in memory after medial septum stimulation are associated with changes in hippocampal cholinergic activity and neurogenesis. Biomedical Research International. 2014; 568587.