Overview
- Using EEG, the team tested 90 adults (data from 76) who first learned to link snack images with rewards, then ate one preferred snack to fullness before viewing the images again.
- Reward-related brain signals to pictures of appetizing foods remained strong after participants reported they wanted no more bites, supporting the lead author's view that the brain takes no orders from the stomach.
- A key limitation noted by the authors is that later measurements captured neural responses to images rather than actual post-satiety consumption.
- The researchers reported no detectable relationship between executive functions or general self-control and the persistent reward response once cue associations were learned.
- Coverage links the findings to ultra-processed foods and pervasive marketing, with authors recommending limits on children’s ad exposure and better access to less-processed options.