Can affect-generating cues be processed outside awareness? A study is reported that examined the effect on subjective affect caused by stimuli presented subliminally. Threatening images, neutral images, and humorous images were embedded in three (separate) videotapes, which were shown to subjects at exposure times that precluded recognition of the images. Self-rated state anxiety assessed immediately afterward (via two separate measures) was highest among subjects exposed to the threatening images, lower in the group exposed to the neutral images, and lowest in the group exposed to the humorous images. In contrast, but consistent with expectations, the subliminal stimuli had no effect on a measure of trait anxiety.