Effects of cortical arousal changes due to sleepiness, alcohol & coffeine on EEG/ERP measures of performance and brain function

这项研究将检查一些挑战对日常功能的影响，如嗜睡、轻度中毒和对风险的反应。将在睡眠剥夺、饮酒和赌博（危险）情况下评估行为表现和大脑活动。此外，咖啡因，一种常见的反制措施，采取扭转困倦和中毒的影响将被检查。我会在人们摄入足够的酒精之前和之后对他们进行测试，将他们的血液酒精浓度提高到大约。（在许多省份，这是法定驾驶限制的一半）和/或在大约20小时不睡觉之后。我将评估他们在各种任务中的表现，同时收集脑电图数据（大脑皮层电活动）。我还将测试一种常见的对策——咖啡因的有效性（从行为和脑电图的角度）。在我的实验中，参与者会得到大约相当于两杯咖啡的量，然后再进行测试，以确定他们的表现是否有所改善，或者他们的大脑活动是否恢复到正常水平。

This research will examine the effects of several challenges to everyday functioning such as sleepiness, mild intoxication and reaction to risk. Behavioural performance and brain activity will be assessed under conditions of sleep deprivation, alcohol consumption and during a gambling (risky) situtation. In addition, caffeine, a common countermeasure taken to reverse the effects of sleepiness and intoxication will be examined. I will test individuals before and after ingesting enough alcohol to raise their blood alcohol to approximately .04 (half the legal limit to drive in many provinces) and/or after approximately 20 hours of wakefulness. I will assess their performance on a variety of tasks while also collecting EEG data (brain electrocortical activity). I will also test the effectiveness (behaviourally and in terms of EEG) of a common countermeasure, caffeine. The individuals in my experiments will receive the equivalent of approximately 2 cups of coffee before being retested to determine if their performance improves, or their brain activity returns to normal levels.