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1 Risk 341 (1990)
Perceived Risks Versus Actual Risks: Managing Hazards through Negotiation

handle is hein.journals/risk1 and id is 351 raw text is: Perceived Risks Versus Actual Risks: Managing Hazards Through Negotiation Kristin S. Shrader-Frechette* Introduction Until recently, the study of risk behavior - what some have called motivated irrationality - has suffered from the lack of attention of any single group of researchers. Brain scientists at the National Institute of Mental Health recently sought to remedy this deficiency. They gave evidence that those who voluntarily increase their individual (not societal) risk, like rock climbers and hang gliders, for example, have lower levels of the brain enzyme monoamine oxidase. They also have lower levels of a brain chemical called DBH, and higher levels of gonadal hormone.1 One problem with attributing risk taking simply to biochemical factors, however, is that many people delight in taking certain kinds of risks but detest others. American visitors to China, for example, are appalled at the high percentage of Chinese men who smoke, while most Chinese are surprised at Americans' chronic over-consumption of alcohol, especially when it is associated with one-half of all fatal automobile accidents and many types of violence.2 How do we * Professor Shrader-Frechette received her B.S. in physics from Xavier University and her Ph.D. from Notre Dame University. She is Graduate Research Professor of Philosophy, University of South Florida and Editor-in-Chief for the monograph series, ENVIRONMENTAL EnTCS AND Sc ENcE Poucy. 1 Weiss, How Dare We? Scientists Seek the Sources of Risk-Taking Behavior, 132 Sc. NEws 58 (1987). 2 Id. at 59. I RISK -Issues in Heath & Safety 341 [Fall 19901

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