The objective was to examine early adolescent projective risk indicators for the development of antisocial behaviour as related to adult personality traits, psychopathy, and violent behaviour over the life span. Assessment data included Rorschach (Rr) ratings (at age 11-14 years), personality inventories (EPQ-I and KSP scales), and a shortened Psychopathy Check List (PCL) (administered at age 32-40 years), obtained from a group of 199 male subjects; and smoking habits (at age 36-44 years) obtained from 125 of those subjects. Results, controlled for intelligence, indicated that the high and very high risk groups, as determined by level of total Rr risk scores, were (1) significantly higher on self-rated IVE Impulsiveness, the anxiety-related KSP Muscular Tension, and nonconformity traits, as compared to the low Rr risk group--the very high risk group also scoring significantly higher on the EPQ Psychoticism scale, related to aggressiveness and cruelty; (2) higher on clinically rated PCL total sum and factor scores; and (3) they were overrepresented among Ss with subsequent violent offence, and Ss with heavy smoking habits. The results are discussed in terms of the possible usefulness of psychodynamic oriented cognitive-emotional indicators in the search for underlying mechanisms in the development of disinhibitory psychopathology.
Erratum In: Int J Law Psychiatry. 2008 Oct-Nov;31(5):451Alm, Per Olof [added]