(HRL Laboratories) HRL Laboratories, LLC, researchers have published results showing that targeted transcranial electrical stimulation during slow-wave sleep can improve metamemories of specific episodes by 20% after only one viewing of the episode, compared to controls. The same technology may offer a non-invasive treatment to mitigate bad memories that might cause post-traumatic stress disorder (PTSD). Metamemory describes the sensitivity of whether memories are recalled accurately or not, such as during eyewitness testimony.

Original source: https://www.eurekalert.org/pub_releases/2020-01/hl-mbw011420.php