The article presents abstracts of papers presented at the tenth annual meeting of Society for Psychophysiological Research, which was held at Roosevelt Hotel in New Orleans, Louisiana, from November 19-22, 1970. Some abstracts of papers that were presented at the meeting are "Response Imperativeness and the Cardiac Wave-Form During the Preparation of a Motor and "Mental" Reaction Response," by Gary E. Schwartz and J. Higgins and "Respiration and Heart Rate Indices of Reaction Time," by Stephen W. Porges.