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7. ETHICAL ISSUES IN NEUROSCIENCE RESEARCH ON SUBSTANCE DEPENDENCE TREATMENT AND PREVENTION



                                                CHAPTER 7

                      Ethical Issues in Neuroscience Research

                       on Substance Dependence Treatment
                                         and Prevention





                     Introduction
                     Previous chapters have presented the latest findings in neuroscience research,
                     and have pointed to potential treatment and prevention strategies. However,
                     there are many ethical implications of the research itself, as well as the
                     treatment and prevention strategies, that must be considered. The rapid pace
                     of change in the field of neuroscience brings with it a host of new ethical
                     issues, which need to be addressed. This chapter considers the important
                     ethical and human rights issues that are raised by neuroscience research on
                     psychoactive substance dependence.

                     Types of research on the neuroscience of substance
                     dependence
                     Neuroscience research on substance dependence is classified here into five
                     broad categories: animal experiments; epidemiological research on substance
                     dependence; human experiments; clinical trials of pharmacological
                     treatments for substance dependence; and trials of preventive
                     pharmacological interventions.


                     Animal experiments
                     Animal experiments investigate the biological processes underlying
                     substance dependence using animal models of human substance
                     dependence. The major reasons for carrying out these studies are that much
                     greater experimental control is possible with animals, and more invasive
                     experiments can be done on animals than would be permitted in humans.

                     Epidemiological research on substance dependence

                     Although not strictly neuroscience research per se, epidemiological research
                     informs and complements neuroscience research. Epidemiological research
                     on patterns of substance use and dependence includes: surveys in the general
                     population and within the special population of drug users and dependent
                     persons (Anthony & Helzer, 1991; Kessler et al., 1994; Andrews, Henderson
                     &Hall, 2001), family studies (Swendsen et al., 2002), adoption studies (Hjern,


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