Power Point Slides Alcohol - Meagher Lab
Power Point Slides Alcohol - Meagher Lab
Power Point Slides Alcohol - Meagher Lab
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<strong>Alcohol</strong>ism and Problem Drinking:<br />
Origins<br />
! Genetic factors appear to be involved<br />
! Twins studies<br />
! if one twin is alcoholic, the likelihood that the other<br />
twin is alcoholic is 2 times as high if identical (54%) vs.<br />
fraternal (28%), relationship not always this strong<br />
! genetics=20% of the variance some studies, 50% others<br />
! What is inherited? GABA, serotonin gene that regs<br />
dopamine receptors? Early environment?<br />
! Frequency of alcoholism in sons of alcoholics<br />
! Men traditionally were at greater risk<br />
! With changing norms, women are “catching up”<br />
! Multifactorial: Physiological, behavioral, and<br />
sociocultural factors are involved
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