As compared with 15 normal controls, " 'primary' sociopaths showed significantly less 'anxiety' on a questionnaire device, less GSR reactivity to a 'conditioned' stimulus associated with shock, and less avoidance of punished responses on a test of avoidance learning. The 'neurotic' sociopaths scored significantly higher on the Taylor Anxiety Scale and on the Welsh Anxiety Index." Cleckley's descriptive criteria were used. 24 references. (PsycINFO Database Record (c) 2006 APA, all rights reserved)