A person who had anoxia has what type of personality?

Anoxia = no oxygen. Anoxia is the medical term for total lack of oxygen, which is not a personality feature. Someone who has been oxygen-deprived due to illness or injury can develop "anoxic brain injury" which varies in severity from total permanent coma to milder symptoms such as confusion, forgetfulness, physical weakness, disinhibition (doing things that aren't socially appropriate) and difficulty learning.