Abstract
Rats were administered either air, 30% CO2, or 50% CO2 for 2 min., 7 min., or 15 min. immediately following completion of a “one-trial” conditioning procedure. It was found upon testing 24 hr. later that both concentrations of CO2 produced retrograde amnesia, and that 50% CO2 had a greater amnesic effect than did 30% CO2. Increasing the duration of administration increased the degree of amnesia only in the groups receiving 30% CO2.
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1. Public Health Service Predoctoral Trainee, U.S.P.H.S. grant 5-TI-MH-6666 to the Department of Psychology, University of California at Los Angeles.
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Quinton, E.E. Retrograde amnesia induced by carbon dioxide inhalation. Psychon Sci 5, 417–418 (1966). https://doi.org/10.3758/BF03331026
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DOI: https://doi.org/10.3758/BF03331026