Dubitsky, Susan Strum, "The effects of laboratory-induced mood on secretory immunoglobulin A in saliva" (1994 I want to thank all the undergraduate assistants who gave of themselves wholeheartedly. Rob Schendowich, Naima K. Ghany, and Lynn Herndon were among the students whose dedication and sense of responsibility were outstanding.Thanks, too, to my dear friend Ruth Weber, whose support and loyalty kept me going. My husband, Larry, deserves a medal for putting up with me through graduate school.A special thanks must go to my major professor, Dr. Rotton, for having the confidence in me to give me the chance to do this project. concentration. The effect of induced mood on blood pressure and heart rate was also examined. There were no significant main effects, but gender interacted with mood induction such that females experienced an increase in blood pressure in the positive mood induction condition. There was no significant effect of method of mood induction on SIgA, blood pressure, or heart rate. Stable personality traits, however, moderated the effects of mood induction. Persons who scored higher on depression and neuroticism, and lower on positive affect had significantly higher SIgA concentrations in the negative mood condition. There were no significant effects of vi personality traits on SIgA levels in the positive mood condition, nor did they interact with induced mood to change blood pressure or heart rate. These data suggest that although SIgA concentration may not be subject to short-term laboratory mood manipulations alone, changes in SIgA concentration may be associated with an interaction of stable personality traits and mood state, especially in the case induced negative mood.vii