In another class, I read that people (& lab rats) eat 60% more when eating with others as opposed to eating alone (Redd and de Castro, 1992). The book suggested that feelings of satiety change with the number of people around us. I am unsure about the physiological explanation behind this -- how could the simple presence of more people drive us to consume larger amounts? I could see the evolutionary reasoning for rats (their ancestors might have needed to fight for food), but I'm not quite sure about humans. Thoughts?
I also saw the following video online, mentioning this phenomenon. They attributed this as a social norm -- that people simply eat as a social event.
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Kelly C.
A08475603
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