A pilot study on an interesting variation of the Pötzl experiment is reported: two stimuli, one subliminal, the other supraliminal, are simultaneously tachistoscopically presented to the subject. Dreams and associations are obtained the following day. In general, subliminal stimuli seem to resonate with the level of drive organization of memories (primary process mechanisms) and the supraliminal with that of preconscious trains of the secondary process in contributing to manifest content, but significant exceptions appear. It is suggested that these variations are influenced by the relative quantitative indifference of the stimulus, the meaning of the stimulus content for the subject, and the personality organization of the subject.