Mary Beth Miller, Jennifer E Merrill, Angelo M DiBello, Kate B Carey
{"title":"酒精引起的记忆障碍的区别:整体与片段性昏迷的混合方法研究。","authors":"Mary Beth Miller, Jennifer E Merrill, Angelo M DiBello, Kate B Carey","doi":"10.1111/acer.13850","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>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.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>Study 1 participants differentiated between en bloc and fragmentary blackouts (which they referred to as \"blackouts\" and \"brownouts,\" respectively) based on duration and extent of memory loss. They indicated that blackouts occur along a continuum, with en bloc \"blackouts\" at the extreme. They also stated that the term \"blackout drinking\" does not always imply memory loss. Study 2 participants reported higher rates of \"brownouts\" (81%) than \"blackouts\" (54%). They reported less negative outcome expectancies and attitudes, greater personal approval, higher prevalence estimates, lower self-efficacy, and stronger intentions for \"brownouts\" than \"blackouts\" (p < 0.001). Women perceived \"blackouts/brownouts\" as more prevalent than men and reported lower intentions to experience \"blackouts\" (p < 0.005).</p><p><strong>Conclusions: </strong>Young adults are more permissive of fragmentary than en bloc blackout. En bloc blackouts may be a target for future interventions.</p>","PeriodicalId":7410,"journal":{"name":"Alcoholism, clinical and experimental research","volume":"42 10","pages":"2000-2010"},"PeriodicalIF":3.2000,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/acer.13850","citationCount":"17","resultStr":"{\"title\":\"Distinctions in Alcohol-Induced Memory Impairment: A Mixed Methods Study of En Bloc Versus Fragmentary Blackouts.\",\"authors\":\"Mary Beth Miller, Jennifer E Merrill, Angelo M DiBello, Kate B Carey\",\"doi\":\"10.1111/acer.13850\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>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.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>Study 1 participants differentiated between en bloc and fragmentary blackouts (which they referred to as \\\"blackouts\\\" and \\\"brownouts,\\\" respectively) based on duration and extent of memory loss. They indicated that blackouts occur along a continuum, with en bloc \\\"blackouts\\\" at the extreme. They also stated that the term \\\"blackout drinking\\\" does not always imply memory loss. Study 2 participants reported higher rates of \\\"brownouts\\\" (81%) than \\\"blackouts\\\" (54%). They reported less negative outcome expectancies and attitudes, greater personal approval, higher prevalence estimates, lower self-efficacy, and stronger intentions for \\\"brownouts\\\" than \\\"blackouts\\\" (p < 0.001). Women perceived \\\"blackouts/brownouts\\\" as more prevalent than men and reported lower intentions to experience \\\"blackouts\\\" (p < 0.005).</p><p><strong>Conclusions: </strong>Young adults are more permissive of fragmentary than en bloc blackout. En bloc blackouts may be a target for future interventions.</p>\",\"PeriodicalId\":7410,\"journal\":{\"name\":\"Alcoholism, clinical and experimental research\",\"volume\":\"42 10\",\"pages\":\"2000-2010\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2018-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1111/acer.13850\",\"citationCount\":\"17\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Alcoholism, clinical and experimental research\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1111/acer.13850\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2018/8/28 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Alcoholism, clinical and experimental research","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1111/acer.13850","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2018/8/28 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"Medicine","Score":null,"Total":0}
Distinctions in Alcohol-Induced Memory Impairment: A Mixed Methods Study of En Bloc Versus Fragmentary Blackouts.
Background: 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.
Methods: 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.
Results: Study 1 participants differentiated between en bloc and fragmentary blackouts (which they referred to as "blackouts" and "brownouts," respectively) based on duration and extent of memory loss. They indicated that blackouts occur along a continuum, with en bloc "blackouts" at the extreme. They also stated that the term "blackout drinking" does not always imply memory loss. Study 2 participants reported higher rates of "brownouts" (81%) than "blackouts" (54%). They reported less negative outcome expectancies and attitudes, greater personal approval, higher prevalence estimates, lower self-efficacy, and stronger intentions for "brownouts" than "blackouts" (p < 0.001). Women perceived "blackouts/brownouts" as more prevalent than men and reported lower intentions to experience "blackouts" (p < 0.005).
Conclusions: Young adults are more permissive of fragmentary than en bloc blackout. En bloc blackouts may be a target for future interventions.
期刊介绍:
Alcoholism: Clinical and Experimental Research''s scope spans animal and human clinical research, epidemiological, experimental, policy, and historical research relating to any aspect of alcohol abuse, dependence, or alcoholism. This journal uses a multi-disciplinary approach in its scope of alcoholism, its causes, clinical and animal effect, consequences, patterns, treatments and recovery, predictors and prevention.