Reviva brain But, there may be no visible of the trauma as with visual flashbacks. So, it takes a variety of paintings to start to apprehend while experiencing an emotional flashback. . Hypervigilance about Reviva brain humans the majority with ptsd have hypervigilance, wherein the man or woman scans the environment for potential risks and loves to have their back to the wall. But complex trauma survivors regularly have a deep unconscious want to "work human beings out."