Scientists found out after death the brain judges itself

Scientists found out that after death there's still brain activity going on for a long time where the person relives their life and judges what they did right and what they did wrong. Many people who were reanimated after being dead for a certain period of time also reported experiencing this. I didn't use to believe in anything spiritual/religious but I've met people who have had crazy experiences e.g. an out of body experience during a coma. Anyone wants to share their thoughts/ experiences?