Original sentence: In the 1960s she began to study the nature of new religious movements and mind control, and sat as a board member of the American Family Foundation and as an advisory board member of the Cult Awareness Network.Margaret Thaler Singer (1921–2003) was a clinical psychologist and opponent of new religious movements (which she called "cults")
Edited sentence: In the 1960s she began to study the nature of cults and mind control and served on the board of the American Family Foundation and as an advisory board member for the Cult Awareness Network.Margaret Thaler Singer (1921–2003) was a clinical psychologist and anti-cultist