From the abstract: "Anthropologists and sociologists have speculated that rituals involving synchronous activity may produce positive emotions that weaken the psychological boundaries between the self and the group."
From the abstract: "We investigated whether the perception of the crispness and staleness of potato chips can be affected by modifying the sounds produced during the biting action. Participants in our study bit into potato chips with their front teeth while rating either their crispness or freshness using a computer-based visual analog scale."
Synchrony and Cooperation
The Role of Auditory Cues in Modulating the Perceived Crispness and Staleness of Potato Chips