"What we show is that there may be situations where we are driven to seek out and eat very rewarding foods, even if we're full, for no other reason than our brain tells us to," said Dr. Jeffrey Zigman, assistant professor of internal medicine and psychiatry at UT Southwestern and co-senior author of the study appearing online and in a future edition of Biological Psychiatry.Scientists previously have linked increased levels of ghrelin to intensifying the rewarding or pleasurable feelings one gets from cocaine or alcohol. Dr. Zigman said his team speculated that ghrelin might also increase specific rewarding aspects of eating.
Dr. Jeffrey Zigman speaking on the subject of rewards has also stated, "They give us sensory pleasure, and they motivate us to work to obtain them." Dr. Zigman included, "They also help us reorganize our memory so that we remember how to get them."
Ghrelin is normally secreted into the bloodstream upon fasting or caloric restriction.
To read the full article visit: http://www.utsouthwestern.edu/utsw/cda/dept353744/files/569556.html
Research by (from left) Drs. Mario Perello, Michael Lutter, Jeffrey Zigman
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