IN AN INITIAL INTERVIEW, PRISONERS RESPONDED TO 20 QUESTIONS DESIGNED TO ELICIT PERSONAL RESPONSES OR ITEMS. DURING A LATER INTERROGATION, THE PRISONERS WERE PRESENTED VERBALLY WITH THE SAME 20 QUESTIONS, AND FIVE ALTERNATIVE RESPONSES INCLUDING THEIR OWN AND FOUR NEUTRAL CONTROL RESPONSES. DURING THE INTERROGATION, SUBJECTS LISTENED QUIETLY WHILE THEIR GALVANIC SKIN RESPONSES WERE MONITORED. ON THE BASIS OF THE GALVANIC SKIN RESPONSES, A SIGNIFICANT PROPORTION OF THE SUBJECTS WERE CORRECTLY MATCHED WITH THEIR PERSONAL QUESTIONNAIRE RESPONSES. ALTHOUGH BETTER OVERALL MATCHING HAD OCCURRED WITH COLLEGE STUDENTS, NO DIFFERENCES BETWEEN THE SAMPLES APPEARED ON ITEMS INVOLVING STRONGLY PERSONAL INFORMATION.(AUTHOR ABSTRACT)...EB