Scientists at the Monell Chemical Senses Center in Philadelphia wanted to explore average weight gain with different formulas.

科学家想要研究不同配方奶粉。

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Pamela Dalton, PhD, odor-perception expert and sensory psychologist at Monell Chemical Senses Center, Philadelphia, Pennsylvania

帕米拉•黛儿顿，博士，气味专家、感官心理学家，供职于宾夕法尼亚州费城的蒙奈尔化学感官中心

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Pamela Dalton, PhD, odor-perception expert and sensory psychologist at Monell Chemical Senses Center, Philadelphia, Pennsylvania.

帕米拉·黛儿顿，博士，气味专家、感官心理学家，供职于宾夕法尼亚州费城的蒙奈尔化学感官中心。

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"It's a first-warning system that we have for danger, " says Pamela Dalton, faculty member at Monell Chemical Senses Center, a scientific-research institution.

WSJ: How to Sharpen Your Sense of Smell

Recent research is finding that taste receptors are found all over the body, including in the gut, nose, and brain, says Danielle Reed, a member at Monell Chemical Senses Center in Philadelphia.

WSJ: People Who Taste Too Much

"For most of human history, people didn't have enough to eat, so fat was something you really needed to seek out, " says Marcia Pelchat, a food psychologist at the Monell Chemical Senses Center in Philadelphia.

CNN: Train your brain to crave healthy foods