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This article presents abstracts of papers presented at the twelfth annual meeting of the Society for Psychophysiological Research, which was held at the Hotel Sheraton-Plaza in Boston, Massachusetts on November 9-12, 1972. The paper presented by J.C. Jackson and F.K. Graham of the University of Wisconsin cites threshold intensity effects on two orienting response components. Sokolovian theory suggests that the orienting response should be large near psychophysical threshold, fall to a minimum around 10-20 decibels and then rise again until it is depressed by competition with the defense reflex.

This article presents information on the Twelfth Annual Meeting of the Society for Psychophysiological Research that will be held in Boston, Massachusetts, at the Sheraton-Plaza Hotel, Copley Square from November 9th through 12th, 1972. Information regarding submission of papers and deadline for abstracts may be obtained from Barry M. Shmavonian, Eastern Pennsylvania Psychiatric Institute, Henry Avenue, Philadelphia.