Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE 68588-0308, USA.
Psychopharmacology (Berl). 2012 Jun;221(4):685-92. doi: 10.1007/s00213-011-2613-9. Epub 2012 Jan 27.
Positive alcohol outcome expectancies and behavioral economic indices of alcohol consumption are related to binge drinking among college students and may reflect explicit and implicit motivations that are differentially associated with this behavior.
The present study hypothesized that implicit (alcohol purchase task) and explicit (positive expectancy for alcohol's effects) motivations for drinking would not be correlated. It was also hypothesized that greater implicit and explicit motivations would predict alcohol-related risk.
Participants were 297 college student binge drinkers (54% female; 88% European-American; Alcohol Use Disorders Identification Test: M = 9.53, SD = 5.04). Three indices from the alcohol purchase task (APT) were modeled as a latent implicit alcohol-related motivations variable. Explicit alcohol-related motivations were measured using a global positive expectancy subscale from the Comprehensive Effects of Alcohol Questionnaire. Alcohol Use Disorders Identification Test total, Rutgers Alcohol Problem Index total, and age of drinking onset were modeled as a latent alcohol-related risk variable. Structural equation modeling was used to examine associations amongst implicit motivations, explicit motivations, and alcohol-related risk.
Implicit and explicit motivations were not correlated. Partially consistent with the second hypothesis, greater implicit motivations were associated with greater alcohol-related risk. Relations between explicit motivations and alcohol-related risk were marginally significant.
Implicit and explicit drinking motivations are differentially associated with problem drinking behaviors. Future research should examine the underlying neurobiological mechanisms associated with these factors.
积极的酒精预期结果和酒精消费的行为经济学指标与大学生的狂饮行为有关，可能反映了与这种行为有差异相关的明确和隐含动机。
本研究假设饮酒的隐含（酒精购买任务）和明确（对酒精影响的积极期望）动机之间没有相关性。还假设更大的隐含和明确动机将预测与酒精相关的风险。
参与者是 297 名大学生狂饮者（54%女性；88%欧洲裔美国人；酒精使用障碍识别测试：M=9.53，SD=5.04）。酒精购买任务（APT）的三个指标被建模为一个隐含的与酒精相关的动机变量。使用酒精综合效应问卷的一个整体积极期望子量表来衡量与酒精相关的明确动机。酒精使用障碍识别测试总分、罗格斯酒精问题指数总分和饮酒起始年龄被建模为一个与酒精相关的风险变量。结构方程模型用于检验隐含动机、明确动机和与酒精相关的风险之间的关联。
隐含动机和明确动机之间没有相关性。部分符合第二个假设，更大的隐含动机与更大的与酒精相关的风险有关。明确动机与与酒精相关的风险之间的关系具有边缘显著性。
隐含和明确的饮酒动机与问题饮酒行为有差异相关。未来的研究应该检查与这些因素相关的潜在神经生物学机制。
