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Have a Creepy, Crawly Halloween

“Insects in the home produced more disgust in the brain than insects in the wild, especially cockroaches,” said Dr. Eric Schumacher, director of Georgia Tech’s Center for Advanced Brain Imaging. “Our research suggests that we may be conditioned against pests in the home because they may be associated with contamination or illness. It’s not clear why cockroaches in particular elicit extreme disgust, although there can be many social and cultural factors that come into play that drive these emotions — familiarity, cultural norms, and so on.”“Disgust likely evolved to keep us away from sources of pathogens,” said Tom Armstrong, assistant professor of psychology at Whitman College in Washington State. “Creepy crawly insects could be repellent because they tend to live in dark, damp places w...

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