MKULTRA
In recent years writer Gordon Thomas has suggested that Sargant's experiments with deep sleep treatment were part of British involvement with the CIA MKULTRA programme into mind control. Donald Ewen Cameron was experimenting along similar lines in Canada, and it later emerged that his work was in part funded by the CIA. Cameron often sought Sargant's advice and on one occasion Sargant sent Cameron a note saying: "Whatever you manage in this field, I thought of it first". Books about Cameron's experiments have commented on links between the two psychiatrists. Although Sargant acted as a consultant for MI5, no evidence has emerged that his work with deep sleep treatment at St Thomas' hospital had any links with intelligence services.
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