How do people know when they're full? It might be more complicated than simply listening to your body. Visual cues, such as seeing the number of bowls of soup you've eaten, may contribute to this phenomenon. We review the "Bottomless Soup Bowl" study (Wansink et al., 2005).

Follow-Up Research: What does the sound of a flute taste like? We surveyed people on what they thought the sounds of different instruments would taste like and present the results of our research.

It should be noted that much of the research conducted by Brian Wansink has either been retracted or called into question. This specific study has not been retracted but the results have been questioned. This doesn’t necessarily mean the effect isn’t real, rather we need more research to draw firmer conclusions. For a similar study with similar results, check out Episodic Memory and Appetite Regulation in Humans (Brunstrom et al., 2012).

Interested in seeing our faces and some visuals referenced in this episode? Check out the video version on YouTube.