#You can’t hear the difference between sick and healthy coughs, study finds

#You can’t hear the difference between sick and healthy coughs, study finds

By Christopher Carbone, Fox News

June 11, 2020 | 12:10pm

Coughing in public has become something that turns heads, prompts people to switch seats on mass transit and sparks anxiety. That’s one unfortunate byproduct of the coronavirus pandemic.

However, if you’ve found yourself thinking, “that person sounds so sick” in those moments, you may want to reconsider.

A new report in the Proceedings of the Royal Society B published today finds that humans cannot discern the difference between the cough of someone with an infection versus someone experiencing allergies or a tickle in their throat.

“Many organisms, including humans, have developed prophylactic behaviors to prevent pathogens from [causing infection] in the first place,” Nick Michalak, a social psychologist at the University of Michigan in Ann Arbor, told Science News.

For the study, Michalak and his colleagues played short audio clips of coughing from apparently sick and healthy people collated from YouTube for over 200 volunteers.

They asked whether each cough was from someone who was ill or not. Despite expressing confidence in their abilities, participants did no better than a coin flip in distinguishing between the two types of coughs.

“We found no evidence that participants could accurately identify the origins of these sounds. Instead, the more disgusting they perceived a sound to be, the more likely they were to judge that it came from an infected person (regardless of whether it did),” the researchers state in the study’s abstract.

They concluded: “Thus, unlike research indicating perceivers can accurately diagnose infection using other sensory modalities (e.g. sight, smell), we find people overperceive pathogen threat in subjectively disgusting sounds.”


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