The article presents abstracts of papers to be presented at the 33rd annual meeting of the Society for Psychophysiological Research. The meeting will be held in Rottach-Egem, Germany. The meeting will be from October 27-31, 1993. The majority of the research reports will be given and discussed informally at three poster sessions. The panel discussion will be on sensory memory and mismatch negativity. The mismatch negativity obtained with event-related potentials and magnetoencephalographic recordings, is dependent on a transient, acoustic memory that has been hypothesized to be what cognitive psychologists call sensory memory.