Researchers block one chemical tag, and only female rats fail to form fear memories

Researchers block one chemical tag, and only female rats fail to form fear memories

A new study suggests the brain may not store traumatic memories through the same biological process in males and females. In rat experiments, dialing down an obscure molecular tag before fear training weakened later fear-memory retention in females, but not in males — a result that could change how researchers approach PTSD susceptibility and treatment. What happened? Earth.com says the Virginia Tech researchers centered their study on K27 polyu…