Distinctions in Alcohol-Induced Memory Impairment: A Mixed Methods Study of En Bloc Versus Fragmentary Blackouts

Alcoholism, Clinical and Experimental Research
Mary Beth MillerKate B Carey

Abstract

Blackouts-or memory loss for all or part of a drinking event-are reliable predictors of alcohol-related consequences. Studies suggest a distinction between en bloc (complete memory loss) and fragmentary (off-and-on memory loss) blackouts; however, research has not consistently differentiated between these 2 forms of blackout. This study aimed to validate the distinction between en bloc and fragmentary blackouts among young adults. Data were collected using qualitative (Study 1) and quantitative (Study 2) research methods. Participants in both studies were college students with a history of alcohol-induced memory impairment. They were recruited using community advertisement (Study 1, N = 50, 56% female) and Qualtrics survey panels (Study 2, N = 350, 56% female). Study 1 participants engaged in 8 focus groups. Discussions were audio-recorded, transcribed verbatim, and coded using applied thematic analysis. Findings guided assessment of en bloc and fragmentary blackout in Study 2. In Study 2, a separate sample of participants completed an online survey assessing drinking behavior, alcohol-induced memory impairment, and theoretical correlates of en bloc and fragmentary blackouts. Study 1 participants differentiated between en bloc ...Continue Reading

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Citations

Apr 12, 2019·Alcoholism, Clinical and Experimental Research·Samuel F AcuffJames G Murphy
Jul 18, 2019·Alcoholism, Clinical and Experimental Research·Melissa J CoxMark Wolfson
Apr 24, 2020·Journal of Psychoactive Drugs·Fermín Fernández-CalderónÓscar M Lozano-Rojas
May 31, 2020·Alcoholism, Clinical and Experimental Research·Samuel F AcuffJames G Murphy
Aug 3, 2019·Alcoholism, Clinical and Experimental Research·Benjamin C RiordanRose Marie Ward
Jun 5, 2021·Alcoholism, Clinical and Experimental Research·Angelo M DiBelloKate B Carey

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