РефератыИностранный языкMaMarijuana Essay Research Paper I Marijuana causes

Marijuana Essay Research Paper I Marijuana causes

Marijuana Essay, Research Paper


I. Marijuana causes behavioral changes


A. Chronic Marijuana users become more aggressive


during withdrawal.


People who have smoked marijuana daily for many years display more aggressive


behavior when they stop smoking the drug, according to a new study by


researchers at Harvard Medical School. The study, funded by the National


Institute on Drug Abuse (NIDA), National Institutes of Health, is further


evidence that a withdrawal syndrome is associated with abstinence from long-term


marijuana use, and suggests that aggressive behavior is part of this syndrome.


Human and animal studies conducted since the early 1970’s have suggested the


existence of a marijuana withdrawal syndrome, characterized by insomnia,


restlessness, loss of appetite, and irritability. "This syndrome–although


less dramatic than the withdrawal syndrome associated with alcohol, opiate, or


cocaine withdrawal–may contribute to relapse among those dependent on


marijuana," says NIDA Director Dr. Alan I. Leshner. "People addicted


to marijuana may continue to use the drug at least partly to prevent the onset


of withdrawal symptoms. Identifying the exact nature of this syndrome is crucial


to developing treatment strategies for those attempting to stop their marijuana


use."


The Harvard study, using a computer test of aggressive behavior, compared 17


long-term heavy users of marijuana with 20 people who were infrequent or former


smokers. All of the volunteers were abstaining from the use of marijuana and all


other drugs of abuse during the study. To avoid any suggestive influences, the


investigators did not reveal to the volunteers that their aggressive behavior


was being studied. Instead, the volunteers were told that they were


participating in a test designed to measure movements and a variety of


physiological characteristics, such as pulse rate and body temperature. They


were also told that another volunteer of the same sex was sitting in another


experimental chamber and would be participating in the test with them.


Facing each volunteer in the experimental chamber was a computer monitor and


a response panel. On a panel were two buttons, labeled A and B. Pressing A 100


times allowed the volunteer to gain 1 point, which was worth 50 cents. Pressing


B 10 times subtracted 1 point from the other participant, who, in actuality, was


not a person but a computer. Three 1-second beeps signaled that the


"opponent" was subtracting 1 point from the volunteer. The researchers


labeled the pressing of B as an aggressive response, and the point subtractions


from the volunte

ers as provocations.


The volunteers participated in one of these sessions on each of five


different occasions: at the beginning of the study, and at days 1, 3, 7, and 28


of abstinence. Results showed that the current marijuana users became


significantly more aggressive, as indicated by the number of times they pressed


B, on days 3 and 7 of withdrawal, as compared to the infrequent of former


marijuana users.


(National Institute on Drug Abuse)April 20,1999


B. Each youth?s brain wave tracings


(Electroencephalograms) Showed dysfunction


Research studies of youngsters from kindergarten through high school show


that previously well–adjusted and intellectually endowed children inexplicably


are falling apart academically and emotionally in the teenage years with the


only new factor being that of occasional marijuana use. Marijuana use leads to


an inability to recognize good from bad, an inability to retain a strong


self–image, and an inability to visualize and plan for the future. Using


marijuana makes "great" people average, and average people


"dumb". Marijuana use is toxic to all cells, and most especially toxic


to brain cells.


(Robert C. Gilkeson, M.D.)


C. Well adjusted and intellectually endowed children


Inexplicably are falling apart academically and


Emotionally with occasional marijuana use


Research studies of youngsters from kindergarten through high school show


that previously well–adjusted and intellectually endowed children inexplicably


are falling apart academically and emotionally in the teenage years with the


only new factor being that of occasional marijuana use. Marijuana use leads to


an inability to recognize good from bad, an inability to retain a strong


self–image, and an inability to visualize and plan for the future. Using


marijuana makes "great" people average, and average people


"dumb". Marijuana use is toxic to all cells, and most especially toxic


to brain cells.


(Robert C. Gilkeson, M.D.)


D. These impairments are the cause of the increase of violent and non violent


juvenile crimes


These impairments are the cause of increased violent and non-violent juvenile


crime, truancy and school dropout, teenage runaways and vagrancy, teenage


prostitution and pregnancy, venereal disease, adolescent depression and suicide,


poly-substance use and adolescent psychiatric referrals. Most alarming of all is


the fact that we have witnessed the appearance of a new chronic organic brain


syndrome called "burnout" caused by marijuana use.


Robert C. Gilkeson, M.D.)


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