酒精消费对工作记忆的影响:检查家庭混
Linnea Sepe-Forrest1, Allen J Bailey1, Patrick D Quinn1
1Department of Psychological and Brain Sciences, Indiana University.
概括
慢性饮酒会对工作记忆产生负面影响. 通过使用双胞胎控制设计,研究人员发现双胞胎饮酒量较高与工作记忆任务的表现较差有关,即使在基因相似的对中也是如此.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 行为科学 行为科学
背景情况:
- 慢性酒精消费是一个广泛存在的问题,已知健康后果.
- 以前的研究表明,酒精使用与认知缺陷之间存在联系,但由于混因素,很难确定因果关系.
研究的目的:
- 严格测试慢性饮酒会损害工作记忆的因果假说.
- 区分酒精消费对工作记忆的影响与家庭影响.
主要方法:
- 采用一个双胞胎对照设计,有158个双胞胎和278个单胞胎双胞胎.
- 在四个任务中测量了酒精消耗和工作记忆的准确性 (NIH工具箱列表排序,NIH工具箱图片序列,Penn Word Memory,2-back).
- 在控制家族混杂之前和之后分析了酒精消费和工作记忆之间的线性关联.
主要成果:
- 最初的分析显示,在整个样本中,酒精使用与工作记忆之间没有显著的关联.
- 科特温分析显示,与双胞胎相比,饮酒量较高的双胞胎在潜在工作记忆复合物,图片序列和列表排序任务上表现明显差.
- 这些发现表明,在考虑到共同的遗传和环境因素之后,酒精消费对工作记忆有特定的影响.
结论:
- 这些结果支持酒精使用和工作记忆性能受损之间的潜在因果关系.
- 家庭因素可能会混观察到的关系,强调控制这种影响的设计的重要性.
- 需要进一步的研究来阐明酒精对认知负面影响的机制,并确定影响酒精行为和认知功能的因素.
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