1. Abel, E. L.: Effects of marihuana homologue, pyrahexyl, on a conditioned emotional response. Psychonomic Sci., 16, 44, 1969.
2. Anderson, D. C., Merril, H. K., Dexter, W., and Alleman, H.: Contextual effects in emotional learning. Proc. Am. Psychol. Assoc. 3, 147–148, 1968.
3. Anderson, D. C., O’Farrell, T., Formica, R., and Caponigri, V.: Preconditioning CS exposure: variation in place of conditioning and presentation. Psychonomic Sci. 15, 54–55, 1969a.
4. Anderson, D. C., Wolf, D., and Sullivan, P.: Pre-conditioning exposures to the CS: variations in place of testing. Psychonomic Sci. 14, 233–234, 1969b.
5. Anderson, L. T., and Ressler, R. H.: Response to a conditioned aversive event in mice as a function of frequency of premating maternal shock. Develop. Psychohiol., 6, 113–121, 1973.