Many White people simultaneously hold both sympathetic and antagonistic attitudes toward Blacks. The present research found that activation of these conflicted racial attitudes gives rise to psychological tension and discomfort, as evidenced by negative mood change, and that the amount of discomfort depends on individual differences in measured ambivalence. The salience of Mite subjects' racial attitudes was manipulated by exposing half the subjects to controversial statements about a recent local incident of racial violence; the other half read neutral material Before and after this manipulation, subjects took a mood test disguised as a subliminal perception task. Subjects in the high-salience condition showed significantly more negative mood change. This effect was carried by high-salience subjects who were also relatively high on dispositional racial ambivalence, as measured by a questionnaire. Ambivalence was unrelated to mood in the control condition. A second study showed that merely completing the questionnaire was not sufficient to produce negative mood change.