An experiment was conducted to investigate the potential effects of pleasant fragrances on task performance. Participants performed a word formation (anagrams) task under moderate or low stress and in the presence or absence of two different fragrances previously rated as pleasant by a large group of judges. In addition, some participants received a small gift at the start of the experimental session. Results indicated that both exposure to pleasant fragrances and receipt of a small gift significantly increased performance on the anagrams task; moreover, this was true under conditions of moderate as well as low stress. In addition, both exposure to pleasant fragrances and receipt of a small gift increased participants' willingness to help the experimenter by serving as uncompensated volunteers. These results are consistent with an interpretation suggesting that pleasant fragrances can enhance task performance by serving as a source of environmentally generated positive affect.
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