15 - Pg. 336-343 Full siblings tend to be less similar than...

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Pg. 336-343 Full siblings tend to be less similar than DZ twins suggests the influence of environmental effects since these two groups should be genetically similar At the Cutting Edge o Similarity of both MZ and DZ twin groups for the retrospective (ratings according to past) ratings of religiousness suggests low genetic and high environmental influences when the twins were young o Older = larger genetic influence which is indicated by increased differences in the correlations o Conclusion: there is a genetic contribution to religiousness that seems to express itself more strongly over time Assessment of Brain Activity o Part of brain becomes more alert, active, and aroused increased amount of electrical activity Electroencephalograph (EEG) measures this activity o Positron emission tomography (PET): measures brain activity by assessing the rate of metabolism of brain cells in response to various forms of stimulation Individual inhales non-toxic radioactive glucose
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15 - Pg. 336-343 Full siblings tend to be less similar than...

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