Declassified documentation of the C.I.A. Human Experimentation program code named "MK-Ultra"

MKULTRA Documents

1977 Senate MKULTRA Hearing

In June 1977, a rare cache of MKULTRA documents were discovered, which had escaped destruction by the CIA. The Senate Select Committee on Intelligence held a hearing on August 3, 1977, to question CIA officials on the newly-discovered documents. The complete 171-page record is included here, including testimony and dozens of MKULTRA documents on various subprojects.

This declassified CIA memo was written on April 18, 1958 by Dr. Sidney Gottlieb, chief of the Chemical Division of the agency's Technical Services Staff. Gottlieb, who oversaw many of the MKULTRA projects, reviewed covert CIA support for research studies of "controversial and misunderstood" areas of psychology such as hypnosis, truth drugs, psychic powers and subliminal persuasion.