FRIDAY, April 16, 2021 — Screams have different meanings, and you’re likely to respond quicker to screams of joy than to those of anger or fear, a new study suggests.
Previous research has largely focused on screams triggered by alarm or fear.
In this study, a team from the University of Zurich in Switzerland examined the meaning behind different human screams and identified six emotionally distinct types: pain, anger, fear, pleasure, sadness and joy.
“We were surprised by the fact that listeners responded more quickly and accurately, and with a higher neural sensitivity, to non-alarming and positive scream calls than to alarming screams,” said study leader Sascha Frühholz, a professor from the university’s Department of Psychology.
To see how people responded, the researchers had 12 volunteers produce positive and negative screams that might be triggered in various situations.
Other participants rated the screams’ emotional nature and classified them into different categories. As they listened, participants had brain scans to see how they perceived, recognized, processed and categorized the sounds.
Brain areas involved in emotions and memory — including the frontal, auditory and limbic regions — were far more active during positive screams than during alarm screams, Frühholz said.
It was previously believed that the brains of humans and other primates were specially tuned to recognize threat and danger signals in the form of screams.
But these findings show that human scream calls have become more diversified over the course of our evolution.
“It’s highly possible that only humans scream to signal positive emotions like great joy or pleasure. And unlike with alarm calls, positive screams have become increasingly important over time,” Frühholz said in a university news release.
This may have been driven by the demands of communicating with each other in increasingly complex social environments, the researchers said.
The findings were published April 13 in PLOS Biology.
© 2021 HealthDay. All rights reserved.
Posted: April 2021
- WHO’s technical advisory group to meet on Oct 26 to consider Covaxin - October 19, 2021
- 163 oxygen plants set up in MP after shortage during 2nd COVID-19 wave: CM Shivraj Singh Chouhan - October 19, 2021
- India’s R-value below 1 since September, researchers say - October 19, 2021
- Mumbai: Double vaccine jab not mandatory to enter theatres, colleges to reopen with 50% attendance - October 19, 2021
- Daily exercise routine, balanced diet, active lifestyle & quality sleep key to success in personal & professional lives: Experts - October 19, 2021
- Storia® Food & Beverages gets backed by Sixth Sense Ventures - October 19, 2021
- No COVID-19 death in Mumbai for first time almost since pandemic began - October 18, 2021
- New govt hospital to come up in Delhi’s Shalimar Bagh - October 18, 2021
- Mix-and-match vaccines highly effective against COVID-19: Lancet - October 18, 2021
- Self-reliance: Govt aims to make semiconductors in India by mid-2022 - October 18, 2021