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When the CS-US interval is longer than the latency of an autonomic response, multiple responses are obtained both during and after the CS-US interval on acquisition test or extinction trials. Certain terminologic, methodologic and conceptual problems concerning this multiple response phenomenon are outlined. A nontheoretical and, we hope, unambiguous terminology is presented. Methodologic problems concerning multiple-response measurement, between- and within- subject designs, trace and delay paradigms, intramodal and intermodal paradigms, and incompleteness of data presentation are discussed. It is felt that empirical analysis of the multiple response phenomenon will have important ramifications for our understanding of autonomic behavior in the classical conditioning situation. [ABSTRACT FROM AUTHOR]

At the Eleventh Annual Meeting of The Society for Psychophysiological Research, a number of researchers were gathered together to present their views on the relationship between cognitive processes and classical, conditioning. An understanding of human conditioning would require attention to specifically human characteristics, particularly in terms of the ability of the human organism to symbolize his environment, both external and internal, in thought and language.