Psychological abuse (also referred to as psychological violence, emotional abuse, or mental abuse) is a form of abuse, characterized by a person subjecting or exposing another person to behavior that may result in psychological trauma, including anxiety, chronic depression, or post-traumatic stress disorder. It is often associated with situations of power imbalance in abusive relationships, and may include bullying, gaslighting, and abuse in the workplace. It also may be perpetrated by persons conducting torture, other violence, acute or prolonged human rights abuse, particularly without legal redress such as detention without trial, false accusations, false convictions and extreme defamation such as where perpetrated by state and media.