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  • Title: Effects of alcohol intoxication on metamemory and on retrieval from long-term memory.
    Author: Nelson TO, McSpadden M, Fromme K, Marlatt GA.
    Journal: J Exp Psychol Gen; 1986 Sep; 115(3):247-54. PubMed ID: 2944987.
    Abstract:
    In a balanced-placebo design, people expected either an alcohol drink or placebo drink and consumed either alcohol (1 ml/kg) or placebo. Shortly thereafter, each person attempted to recall the answers to general-information questions (e.g., "What is the capital of Chile?"), made confidence judgments about the accuracy of recall, made feeling-of-knowing judgments on all nonrecalled items, and received a recognition test. Unanticipated outcomes included: Alcohol intoxication significantly hindered recall from long-term memory, contrary to previous conclusions that alcohol does not affect retrieval; people's expectancy of alcohol had no significant effect on memory or metamemory performance, contrary to its established effects on other kinds of performance; and alcohol intoxication produced no significant overconfidence in judgments about recall or in feeling-of-knowing judgments, contrary to the overconfidence produced in other kinds of judgments such as an intoxicated person's assessment of his driving ability. This last outcome implies that alcohol intoxication does not produce a general lowering of the threshold for confidence but rather has effects that are situation specific.
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