Obesity Clinical Trial
Official title:
Behavioral Assessment of the Brain Response to Bioactive Food Components Using Electroretinography (Brain's Response to Chocolate)
The purpose of this study is to test how the brain responds when individuals eat enjoyable foods such as chocolate. Eating certain foods can make one want to keep eating even when feeling full, caused by dopamine in the brain. The researchers believe this dopamine response can be measured by looking at the individual's eye.
With obesity at an all-time high, understanding eating behavior beyond physical need is a priority. Food reinforcement is driven by central dopamine activity. However, objective measurement of brain dopamine-related behavioral events is hindered by the lack of non-invasive, accessible techniques that are amenable to testing in a "naturalistic" environment. The goal of this project is to develop a non-invasive, accessible methodology to measure dopaminergic responses to food in a natural setting. This research will use a novel, hand-held electroretinograph (ERG) that does not require eye dilation and uses a skin electrode to measure retinal dopamine activity. Previous work establishes that retinal dopamine activity can be used as a proxy for central dopamine function. The ability to assess both subjective behavioral variables and central dopaminergic responses simultaneously will provide an ideal approach for innovative studies of the control of eating behavior. ;
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