Gaslighting:

The Double Whammy, Interrogation and Other Methods of Covert Control in Psychotherapy & Analysis
PUBLISHER JASON ARONSON | ISBN: 1568218281

In treatment, the psychotherapist is in a position of power. Often, this power is unintentionally abused. While trying to embody a compassionate concern for patients, therapists use accepted techniques that can inadvertently lead to control, indoctrination, and therapeutic failure. Contrary to the stated tradition and values of psychotherapy, they subtly coerce patients rather than respect and genuinely help them.

The more gross kinds of patient abuse, deliberate ones such as sexual and financial exploitation, are expressly forbidden by professional organizations. However, there are no regulations discouraging the more covert forms of manipulation, which are not even considered exploitative by many clinicians. In this book, noted psychiatrist Theo. L. Dorpat strongly disagrees. Using a contemporary interactional perspective, Dorpat demonstrates the destructive potential of manipulation and indoctrination in treatment.