NCBI ROFL: Smelly Week: The science of "the stinkface".

By ncbi rofl | March 3, 2011 7:00 pm

It’s smelly week on NCBI ROFL! All week long we’ll feature the funniest papers about the science of stink. Enjoy!

Gustofacial and olfactofacial responses in human adults.

“Adults’ facial reactions in response to tastes and odors were investigated in order to determine whether differential facial displays observed in newborns remain stable in adults who exhibit a greater voluntary facial control. Twenty-eight healthy nonsmokers (14 females) tasted solutions of PROP (bitter), NaCl (salty), citric acid (sour), sucrose (sweet), and glutamate (umami) differing in concentration (low, medium, and high) and smelled different odors (banana, cinnamon, clove, coffee, fish, and garlic). Their facial reactions were video recorded and analyzed using the Facial Action Coding System. Adults’ facial reactions discriminated between stimuli with opponent valences. Unpleasant tastes and odors elicited negative displays (brow lower, upper lip raise, and lip corner depress). The pleasant sweet taste elicited positive displays (lip suck), whereas the pleasant odors did not. Unlike newborns, adults smiled with higher concentrations of some unpleasant tastes that can be regarded as serving communicative functions. Moreover, adults expressed negative displays with higher sweetness. Except for the “social” smile in response to unpleasant tastes, adults’ facial reactions elicited by tastes and odors mostly correspond to those found in newborns. In conclusion, adults’ facial reactions to tastes and odors appear to remain stable in their basic displays; however, some additional reactions might reflect socialization influences.”

Bonus Table:

Photo: flickr/Grahambones

Related content:
Discoblog: NCBI ROFL: When life gives babies lemons, they make cute faces.
Discoblog: NCBI ROFL: Botox makes you happy…because you have no other choice.
Discoblog: NCBI ROFL: The teddy-bear effect: does having a baby face benefit black chief executive officers?

WTF is NCBI ROFL? Read our FAQ!

CATEGORIZED UNDER: eat me, NCBI ROFL, smell you later

Discover's Newsletter

Sign up to get the latest science news delivered weekly right to your inbox!


Quirky, funny, and surprising science news from the edge of the known universe.

About ncbi rofl

NCBI ROFL is the brainchild of two Molecular and Cell Biology graduate students at UC Berkeley and features real research articles from the PubMed database (which is housed by the National Center for Biotechnology information, aka NCBI) that they find amusing (ROFL is a commonly-used internet acronym for "rolling on the floor, laughing"). Follow us on twitter: @ncbirofl


See More

Collapse bottom bar