Sleep and Memory
Maria del Rocio Gutierrez
University of Texas at Brownsville
Sleep and Memory
We can define sleep as a period of rest and we can define immediate memory as an organism's ability to store, retain, and subsequently retrieve information. Therefore if the organism rests for a period of time the ability to store, retain and retrieve information will be improved. This study will focus on how sleeping a minimum of 7 hours a day will reflect a notorious improvement in memory. We will also be able to compare if women have better memory than men, if there is a significant difference between these two groups; age will also be compared, we will be able to see if younger people are able to have a better memory than older people. This study will also help us understand the importance of resting on daily bases so we can have a good performance in our daily activities. Past Research
Previous Researches have showed that sleep has an impact episodic memory in the long run. Researchers used up to 8 hours of sleep. There were used sixty university students, which were asked not to smoke or drink caffeine during daytime. Students had to do this procedure 12 hours before the experiment. During the experiment 56 words were presented individually to the students on a computer monitor. Two tests were given to the participants. In the first test students were given 10 minutes to see how many words were recalled. Several words were shown to the participants. The second test was 10 minutes as well, with the difference that fourteen text fields were with the category labels were presented simultaneously on a computer. It was found that more words were recalled when they were not categorized, and that students who slept 7 hours had a higher recall of words ,(Olaf & Reinhard P.,2007). The importance of this research is to demonstrate how students who slept 7 hours could recall easy words given to them during the experiment, (Lahl & Pietrowsky, 2007).
Previous researches discovered that sleep improves memory, and that also neuronal activity and regional blood flow during sleep form part of an improvement of memory during the day, (Morgrass, Guillem & Godbout, 2008).Participants were required to have a night of sleep, there were no other restrictions like in the above study mentioned. Researchers tested the participants twice to control the effect of practice. Participants were tested in the morning and late afternoon. Each test lasted 15 minutes; there were presented different photographs of faces taken in the same condition. Researchers divided their sample into two groups, one slept in the laboratory used and the other group slept at their home. Researchers found no significance difference in recalling memory between one group and another. Researchers found that daytime session questionnaire was higher than those in the afternoon. The importance of this experiment is that researchers show us there is no significance improvement in memory whether they sleep at home or at a clinic, but there is a difference if the participant just rested or if the participant was already awake (Mograss & Guillem & Godbout, 2008).
Previous researches done reflect that a deprivation of sleep would affect memory. These researchers mention that the amygdale modulates the consolidation of long term memory by influencing other areas that are involved in memory processing. Researchers used twenty-four volunteers, all of them were students of medicine. Students needed to have a regular sleep schedule for a week and no caffeine for at least 4 days before the experiment. Participants were tested two times, in the morning and at night. Researchers used a shopping list of 16 items presented five times to the participants. Complex figures were presented as well. Participants were given different tests such as Corsi block-tapping test, coding test, emotional odball paradigm, digit span test and word stem test. All of...