Psychology :: essays research papers

Reaction Paper 1 (Sample Reaction Paper)Ron Gerrard, HWS Psychology divisionMy paper is based on an article from the texts web site (chapter 9) entitled Lack of sleep ages systems systems. The basic deed of the article is that sleep deprivation has various harmful effects on the body. The reported effects include decreased ability to metabolize glucose (similar to what occurs in diabetes) and increase levels of cortisol (a melody hormone involved in memory and regulation of blood sugar levels). The article also briefly alludes (in the quote at the puke of page 1) to unspecified changes in brain and immune functioning with sleep deprivation. Intuitively, these results make a lot of sense to me. I know that when Im sleep deprived for any significant amount of time, I begin to feel physically miserable. I also seem to be more undefendable to colds and other physical ailments. In thinking about it though, most of the times Im sleep deprived are also periods of psychological stress (such as finals week). To the extent that there are changes in my physical well-being, Im wondering whether they are due to the sleep deprivation, the stress itself, or somewhat combination of the two.In principle, a careful experiment should be able to isolate the effects of sleep deprivation by depriving people of sleep in the absence of stress and other such confounding variables. That seems to be what this experiment does, but as I read the article closely, I found myself unsealed that the effects it reports are necessarily due to sleep deprivation per se. I realize that a brief summary article like this does not interpret all the details of the experimental methodology, but a couple of things that were reported in the article struck me as curious. The researchers studied physical functioning (cortisol levels, etc.) in men who had a convention nights sleep (eight hours in bed) the first three nights of the study, followed by a period of sleep deprivation (four hours in bed) the next six nights of the study, and finally a period of sleep recovery (12 hours in bed) the last seven nights of the study. In reporting the effects on the body (the discussion of glucose metabolism, in the fifth paragraph of the article) the authors compare the sleep deprivation stage only to the sleep recovery stage, not to normal sleep. This seems to me like doing an experiment on drunkenness and comparing the drunk stage to the hangover stage, without ever reporting what happens when the person is sober.