Gang-rape pics shown at sex cult

A DOCTOR affiliated with the Nxivm sex cult led terrifying “fright studies” where participants were force-fed deeply disturbing images — including a graphic gang rape.

Dr. Brandon Porter, 44, was cited by the state Board for Professional Medical Conduct for his twisted human research work between 2012-17.

The dozens of people brought in for his studies were shown actual video “of the horrific and brutal murders and dismemberment of four women by machetes,” read the statement of charges against Porter.

There were also violent film clips — one with a Nazi viciously stomping on an African-American man and another portraying a cinematic sexual assault, according to state officials.

A third clip, lifted from the movie “Hannibal,” showed the cannibal character played by Anthony Hopkins forcing a man to eat a portion of his own brain.

When some participants complained, Porter refused to let them withdraw from the study.

In 2015-16, he allegedly violated an assortment of state and federal guidelines while conducting brain wave studies on behalf of Nxivm — the upstate sex cult whose leader was returned to New York on criminal charges last month.

Porter was charged with gross negligence, professional misconduct, gross incompetence and fraudulence.

State health officials warned that Porter faces revocation or suspension of his medical license, along with fines or other sanctions, at a June 27 hearing in Albany.