Abuse is any behavior that is designed to control and subjugate another human being through the use of fear, humiliation, and verbal or physical assaults. Emotional abuse is any kind of abuse that is emotional rather than physical in nature. It can include anything from verbal abuse and constant criticism to more subtle tactics, such as intimidation, manipulation, and refusal to ever be pleased.
Emotional abuse is like brain washing in that it systematically wears away at the victim's self-confidence, sense of self-worth, trust in their own perceptions, and self-concept. Whether it is done by constant berating and belittling, by intimidation, or under the guise of "guidance," "teaching," or "advice," the results are similar. Eventually, the recipient of the abuse loses all sense of self and remnants of personal value. Emotional abuse cuts to the very core of a person, creating scars that may be far deeper and more lasting than physical ones.