Recent research indicates that Functional Magnetic Resonance Imaging (fMRI) may benefit in explaining the psychological correlations of polygraph exams.

Several dozen C.I.A. officials have undergone the polygraph exams, including Mr. Goss and the agency's inspector general, John L. Helgerson.

Dr. Hatfill said that Mr. Kristof had erroneously reported that he had failed three polygraph exams.

Questions on Polygraphs Others noted, however, that polygraph exams are not considered conclusive and are not admissible in court.

Arrested in Oceanside on May 17, 1993, Morgan and Holland both took polygraph exams administered by California police.

One other thing about that polygraph exam.

Which means it's not a normal polygraph exam.

In recent weeks, Mr. Freeh has imposed stricter controls on classified databases and ordered wider use of polygraph exams for F.B.I. employees.

Gillespie thought that he had demonstrated his belief in the UFO story with his announcement following the polygraph exams.