Sleep Essay - 931 Words

In general, our results suggest that it is possible sleep over 9 hours as well as caffeine intake is a predictor of slower reaction times. In each category of individuals with caffeine, we see a slight increase in average PVT times. For example, we see in Figure 6 an average of 320 ms compared to the average in Figure 3, with caffeine consumption, of 312 ms. While each of the three categories of sleep suggest the finding that caffeine consumption decreased reaction times on average, the statistical analysis presented argues that the significance is not strong and can be seen in the recorded p values. Each of the obtained p values are above 0.05 and this means that based on our data the differences aren’t distinct enough. Looking at the†¦show more content†¦In an article by Mora-Rodrà ­guez and colleagues, we see that the ingestion of a moderate dose of caffeine counteracts the muscle contraction velocity declines observed in the morning, whereas evening caffeine inge stion not only has little effect on neuromuscular performance, but increases the rate of negative side-effects reported (Mora-Rodrà ­guez,2015). Because our study is across a wide range of lab times, it is likely that similarly we will see neuromuscular performance in reaction times to coincide with these findings. For instance, if an individual consumed caffeine in the morning just prior to completing the PVT test it is likely to have a greater neuromuscular performance effect on the reaction time than an individual that consumed caffeine at night and took the test the next morning. Future research with standardized caffeine consumption and timing should be considered to obtain more statistically reliable evidence. As discussed earlier the PVT test is a reliable tool to test psychomotor vigilance and sleep deprivation, but also necessary to consider is optimal duration and metrics of analysis. Due to their superior conceptual and statistical properties and high sensitivity to slee p deprivation, metrics involving response speed and lapses should be considered primary outcomes for the 10-min PVT. In contrast, PVT mean and median metrics, should be avoided as primary measures of alertness (Basner, 2011). This contemporary researchShow MoreRelatedSleep Journal Essay1745 Words   |  7 PagesJennifer Nguyen Professor Perry Daughtry Intro to Psychology 09-28-2012 Sleep Journal Essay College students like myself often put off sleep for other activities like studying, doing homework or even just staying up all night with a friend. Our body follows the twenty-four hour cycle of each day and night through a biological clock called the Circadian rhythm. 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