Monday, June 24, 2013

Eyes Reveal What Tastes Good, Study Shows

“The brain's pleasure response to tasting food can be measured through the eyes using a common, low-cost ophthalmological tool, according to a study just published in the journal Obesity. If validated, this method could be useful for research and clinical applications in food addiction and obesity prevention,” notes a Science Digest post. “Dr. Jennifer Nasser, an associate professor in the department of Nutrition Sciences in Drexel University's College of Nursing and Health Professions, led the study testing the use of electroretinography (ERG) to indicate increases in the neurotransmitter dopamine in the retina. Dopamine is associated with a variety of pleasure-related effects in the brain, including the expectation of reward. In the eye's retina, dopamine is released when the optical nerve activates in response to light exposure.” Read more.

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