Feline vocalizations, commonly interpreted by owners as expressions of affection or emotion, may instead be primarily used by cats to communicate their needs to humans, according to a study from the University of São Paulo. The research suggests that meowing is a learned behavior tailored for human interaction.
Researchers designed an experiment to test the 'audience effect' on cats, examining whether their vocalizations change based on human presence. In the study, 38 cats were presented with an unsolvable task involving their favorite food, both when their owners were present and absent. The cats were observed for approximately one minute under each condition.
The findings revealed a significant increase in meowing when an owner was present compared to when the cat was alone. This suggests that meowing functions as a socially directed signal rather than a purely motivational response. Furthermore, a larger proportion of these meows occurred while the cats were looking directly at their owners, reinforcing the idea that the vocalizations are intended to elicit a response.
In contrast, when the owners were absent, the cats tended to stare silently at the door, exhibiting less vocal communication. The study's authors concluded that these results are consistent with meowing functioning as a communicative signal, specifically aimed at achieving a desired outcome from humans, rather than solely expressing internal states of motivation or emotion.
This research adds to previous findings suggesting a complex relationship between cats and human communication. A prior study indicated that cats might not distinguish between different human emotional vocalizations, perceiving various sounds like laughter, sobs, screams, and shouts as largely similar. While cats do react to human emotional outbursts, they appear unable to differentiate the specific emotion conveyed through voice alone.