Medicine: Truth Won't Out

"Truth serum" doesn't necessarily make people blurt out the truth. In the current American Journal of Psychiatry, Professor Frederick C. Redlich of Yale University Medical School tells how he and his associates arrived at that conclusion after an experimental sampling of students and professional people, some normal, some slightly neurotic.

Before the tests, each of the subjects agreed to tell an examiner the truth about some embarrassing incident in his life. Then they told a second examiner a "cover" story. After giving each subject a tongue-loosening injection of sodium amytal, the second examiner tried...

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