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Color blindness and alcohol use.

This paper reports the results of a study on the relationship of color blindness and alcohol consumption in a normal population where drinking behavior ranges from abstinence to heavy use. Two lines of reasoning have developed from prior studies: (1) that pharmacological appetite for alcohol may be related to a specific gene on the X chromosome and (2) that color-vision defects associated with alcoholism are an acquired condition. Results of the present study cannot resolve this question but appear consistent with either hypothesis.