Genesis chapter 19 verse 26 simply says "But his wife looked back from behind him, and she became a pillar of salt.", which maybe indicates someone being in such a state of shock that they just refused to move on, as the salt covered them.
I'm not a psychologist, but I could imagine such an event causing what we would now call PTSD, and maybe triggering catatonia or similar symptoms.
I'm not a psychologist, but I could imagine such an event causing what we would now call PTSD, and maybe triggering catatonia or similar symptoms.