"In a number of studies, no significant differences were detected. *54 In fact, there is substantial research demonstrating that that marijuana intoxication does not impair the retrieval of information learned previously. *55 However, there is evidence that marijuana, particularly in high doses, may interfere with users' ability to transfer new information into longterm memory. *56 "
54. Weckowicz, T.E. et al, "Effect of Marijuana on Divergent and Convergent Production Cognitive Tests," Journal of Abnormal Psychology 84:386-98 (1975); Hooker, W.D., and Jones, R.T., "Increased Susceptibility to Memory Intrusions and the Stroop Interference Effect During Acute Marijuana Intoxication," Psychopharmacology 91: 20-24 (1987); Waskow, I.E. et el, "Psychological Effects of Tetrahydrocannabinol," Archives of General Psychiatry 22: 97-107 (1970); Dornbush, R.L. and Kokkevi, A., "Acute Effects of Cannabis on Cognitive, Perceptual, and Motor Performance in Chronic Hashish Users," Annals of the New York Academy of Sciences 282: 213-22 (1976).
55. Darley, C.F. et al, "Marijuana Effects on Long-Term Memory Assessment and Retrieval," Psychopharmacology 52:239-41 (1977); Abel, E.L., "Retrieval of Information After Use of Marijuana," pp 121-24 in E.L. Abel (ed) The Scientific Study of Marijuana, Chicago: Nelson-Hall Publishers (1976); Abel, E.L., "Marijuana and Memory: Acquisition or Retrieval?" pp 125-32 in E.L. Abel (ed) The Scientific Study of Marijuana, Chicago: Nelson-Hall Publishers (1976).
56. Abel, E.L., "Marijuana and Memory: Acquisition or Retrieval?" pp 125-32 in E.L. Abel (ed) The Scientific Study of Marijuana, Chicago: Nelson-Hall Publishers (1976); Miller, L. et al, "Effects of Marijuana on Recall of Narrative Material and Stroop Colour-Word Performance," pp 117-20 in E.L. Abel (ed) The Scientific Study of Marijuana, Chicago: Nelson-Hall Publishers (1976); Dornbush, R.L. et al, "Marijuana, Memory, and Perception," pp 133-40 in E.L. Abel (ed) The Scientific Study of Marijuana, Chicago: Nelson-Hall Publishers (1976).