THE EFFECTS OF CAFFEINE ON COGNITIVE PERFORMANCE

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Figure 1: Reported Drug Screening Score for Caffeine Use "Low Caffeine" users are defined as participants with a score of 4 to 7, while "High Caffeine" users are defined as participants with a score of 8 to 12 It is defined as a person. In the second week, the score is closer to the normal distribution. Count: The number of participants within the score. Caffeine score: score of screening survey and validation survey

Figure 2: The upper graph shows that subjects with coffee beverage conditions (2 mg / kg) showed significantly better performance than other caffeine conditions in the psychological rotation test of the visuospatial capacity . However, administration of caffeine in capsule form did not affect MRT performance compared to capsule form. [F (5, 107) = 078, p =. 37,] The histogram reflects the average score of each condition, SEM error bar

Figure 3: The results here are consistent with previous studies that men are significantly superior to women in spatial MRT over the mean (mean +/- SEMS). Women are affected to the same extent. However, caffeine generally has a significant influence on the male performance of current MRT tasks [F (1,101) = 17.04, p <0.01], the condition of the coffee beverage was changed to other conditions and coffee beverage of women (2 mg) / Compared with conditional results. Women's performance in other circumstances)

Figure 4: Results of MRT by gender The above picture shows that men are significantly better at MRT work than women.

Figure 5: The graph above shows that subjects with coffee beverage conditions (2 mg / kg) performed significantly better performance than other caffeine conditions in verbal memory PWA tests. [F (5, 107) = 107, p = .07] The histogram represents the average score of each condition, and the SEM error bar

Figure 6: The above results (mean +/- SEMS) are consistent with previous studies, and the overall women [F (1,101) = 17.04, p <.06] It was significantly superior. The results show the average performance of male and female recalled by PWA

Figure 7: Result of MRT by gender. The above picture shows that women are significantly better than men in PWA's work.

Based on a number of literature on this topic, the impact of caffeine on cognition was examined. Caffeine sometimes promotes or inhibits memory and learning, but caffeine usually does not affect the performance of learning and memory tasks. Caffeine helps learn with the task of passively presenting information, and caffeine has no effect in the task of consciously learning teaching materials. Caffeine contributes to the performance of tasks that require a limited degree of working memory, but it hampers the performance of tasks that heavily depend on working memory and caffeine does not perform memory performance under suboptimal alarm conditions It seems to improve. However, most studies found that the reaction time was improved. Intake of caffeine does not seem to affect long-term memory. Significant improvement in the performance of fatigue subjects confirms that caffeine is a mild stimulant

A positive effect on caffeine's long-term memory has been confirmed in studies that analyzed normal caffeine intake of coffee or tea in addition to other substances. Observe their impact on the cognitive process by performing many cognitive tasks. Words were presented and delayed recalls were measured. Individuals with moderate to high addictive caffeine intake (average 710 mg / week) succeeded compared to people with lower addictive caffeine intake (average 178 mg per week), so the delayed recall Showed an increase There are more words to remember. Therefore, the improvement in long-term memory performance indicates that the habitual caffeine intake increases for better storage or reuse. In a similar study, caffeine's cognition and its effect on mood were evaluated, and recall of caffeine intake was improved. Dose-response relationships were observed as individuals were able to recall more words with more caffeine after a period of time