Caffeine and Reaction Time - 1286 Words

Daniel Kim 12-3-12 HBS, period 1 Reaction time experiment Caffeine and Reaction Time 1) Identify the Problem or Question How does the consumption of caffeine affect the reaction time of the nervous system? 2) Introduction Purpose of the experiment: To identify the whether or not caffeine increases or decreases the reaction time of the nervous system. In our experiment, we have decided to use all the â€Å"cases† which will test how fast a signal from our brain will be sent to our muscles in order to click the mouse when we see an object or directions on the screen. We know that the commonly used drug, caffeine, increases the heart rate, thus the increase in blood flow. The question in our experiment is, does the†¦show more content†¦When he consumed the 12 oz of coffee, his average reaction time decreased to 344+-60 milliseconds. It is quite apparent from the graphs that the average reaction time for every â€Å"case† for each test subject decreased when absorbing caffeine into their system. Test subjects also consumed the â€Å"right† amount of caffine, 160mg, which allowed the subject to shorten their reaction time, while the wrong dosage could impair it. We can also draw from the graphs the relation that the younger the test subjects are, the quicker their reaction time will be. Also, we can also conclude from the results that males tend to have a quicker reaction time than females (Daniel’s reaction times were faster than Jazmine’s, and Keon’s were faster than Mi’s). 8) State the conclusion The hypothesis was correct. The effects of caffeine shortened the reaction time in all of our test subjects. 9) Summary Paragraph The reason why we were able to correctly devise a hypothesis for the experiment was because of the prior knowledge we had of the drug, caffeine. Caffeine increases the heart rate, which allows for faster muscle contractions. Caffeine does not really affect the actual reaction of the nervous system, but rather the actual contractions of the muscles themselves. This known fact of caffeine is reflected in the experiment. It shortened the reaction time of our test subjects in everyShow MoreRelatedCaffeine versus No Caffeine781 Words   |  3 PagesCaffeine vs. No Caffeine Humans have used caffeine for the past hundred years to be active and get work done faster, but is caffeine really helping us do that? Caffeine has been demonstrated to improve reaction time, cognitive performances, and physical activities. Effect of caffeine has been studied in various research studies. Caffeine is used in many different activities to stay active or awake during the task. 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