Psychotherapists' reactions to patients with borderline personality disorder were assessed by semantic differential ratings in an analogue study. Vignettes presented one of two patients who enacted the Rewarding and Withdrawing object relations units in two separate therapy sessions. In response to the Rewarding object relations unit therapists evaluated themselves more positively and perceived themselves as more active and more potent than in response to the Withdrawing object relations unit (p less than .01). They also evaluated the patients more positively and perceived them as less active (p less than .01). These patterns were modified by some order effects and some differences in response to the two vignettes, which represented a lower and higher functioning borderline patient.