He. Barbaree et al., COMPARISONS BETWEEN SEXUAL AND NONSEXUAL RAPIST SUBTYPES - SEXUAL AROUSAL TO RAPE, OFFENSE PRECURSORS, AND OFFENSE CHARACTERISTICS, Criminal justice and behavior, 21(1), 1994, pp. 95-114
Sixty incarcerated rapists were subtyped according to the Massachusett
s Treatment Center Rapist Typology as either ''nonsexual'' (i.e., the
opportunistic and vindictive subtypes) or ''sexual'' (i.e., the nonsad
istic and sadistic subtypes). Subjects were then tested using the circ
umferential penile plethysmograph, assessing their erectile responses
to verbal descriptions of consenting sex and rape. Additionally, the P
sychopathy Checklist-Revised was scored for each subject, and institut
ional files were summarized and coded. The index offenses committed by
the nonsexual subtypes were more violent and resulted in greater vict
im damage; the offenses of the men in the nonsexual subtypes were more
likely to be impulsive; the men in the sexual subtypes were more soci
ally isolated at the time of the offense. Relative sexual arousal to r
ape descriptions was greater among the sexual subtypes than among the
nonsexual subtypes. These results are discussed in terms of two separa
te cognitive-behavioral processes leading to rape.