Doniger Glen M, Simon Ely S, Zivotofsky Ari Z
Department of Clinical Science, NeuroTrax Corporation, New York, NY, USA.
Behav Neurosci. 2006 Aug;120(4):804-16. doi: 10.1037/0735-7044.120.4.804.
Food deprivation has been shown to deleteriously affect human cognition, but findings are equivocal, and few studies have examined several cognitive domains. In this study, the authors used computerized testing to describe the profile of shifts in cognition attributable to short-term religious fasting. Multiple cognitive domains were evaluated at midday and late afternoon following complete abstention from eating and drinking beginning at midnight. Cross-domain, fasting-related deficits were found for tasks requiring perception of spatial relations. Fasting-related information processing deficits were found for response time but not accuracy for test levels of intermediate difficulty. Time-of-day effects often reflected poorer afternoon performance. These findings provide a detailed profile of cognitive consequences of food deprivation, affected by time of day, task demands, and type of outcome.
食物剥夺已被证明会对人类认知产生有害影响，但研究结果并不明确，而且很少有研究考察多个认知领域。在本研究中，作者使用计算机化测试来描述短期宗教禁食导致的认知变化情况。从午夜开始完全禁食禁饮后，在中午和傍晚对多个认知领域进行了评估。发现对于需要感知空间关系的任务存在跨领域的、与禁食相关的缺陷。对于中等难度测试水平的反应时间，发现了与禁食相关的信息处理缺陷，但准确性未受影响。一天中的时间效应通常反映出下午的表现较差。这些发现提供了受一天中的时间、任务要求和结果类型影响的食物剥夺认知后果的详细情况。
