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This article is converted Medicine original, reproduced please indicate the source Author: chen Introduction: scream a loud and shrill sound, usually alert in most mammals, and show emotion in humans.
Recently, researchers at the University of Zurich have conducted in-depth and systematic studies on various human screams.
Screams are an effective way to convey emotional signals, which are highly relevant in socio-biological interactions.
In non-human primates and other mammals, screaming sounds often appear as warning signs under negative circumstances, such as social conflicts, the presence of predators, or other environmental threats.
In humans, this is an instinctive or reflex action that shows strong emotions.
Previously, it was assumed that humans use screams to send out danger signals and frighten predators.
Related research has also focused on fear screams.
However, humans not only scream when they are fearful and aggressive, but also experience other emotions (such as Desperate and elated) also scream.
Therefore, the broader significance of various types of screams needs to be further explored.
On April 13, 2021, researchers from the University of Zurich published a new study in "PLOS Biology" entitled "Neurocognitive processing efficiency for discriminating human non-alarm rather than alarm scream calls".
Studies have shown that: humans can show at least 6 different types of screams.
Among them, non-alarm screams will cause more activity in the auditory and frontal brain regions, while alarm screams make people's decision-making discriminatory.
First, the research team collected 420 primitive screams based on the daily, social and cultural manifestations of many human screams, as well as the diversity of human emotional vocalizations, and solved this knowledge gap through human psychoacoustics, perceptual decision-making and neuroimaging experiments.
.
In the study of human psychoacoustics, researchers found that: human screams are not limited to threatening signals for alarms, but also show at least 6 different types of screams, including (a) when experiencing a strong sense of pleasure Screams, (b) crying screams of sadness and despair, (c) screams of joy and elation, (d) screams of pain, (e) screams of anger and rage, and (f) terrible Scream (Figure 1).
Figure 1.
Sound descriptions and alarm levels of 6 different types of screams.
At the same time, the researchers divided all screams into neutral screams, non-alarm screams (pleasure, sadness, joy ac) and alarm screams (pain, anger, fear df).
Then in the question of the decision-making process, the researchers selected screams with the same basic recognition rate.
They found that the classification speed of alarm screams was slower and the error rate was higher.
Compared with non-alarm screams, the perceptual discrimination of alarms is reduced.
Figure 2.
Perceptual decision-making for perceived screams.
In terms of neurocognitive efficiency, functional magnetic resonance imaging (fMRI) scan results show that humans respond faster and more accurately to screams of pleasure or pleasure, and are more sensitive to nerves, that is, non-alarm screams.
It is more effectively perceived and processed by the brain than the scream of an alarm.
Specifically, fewer alarm screams cause more activity in the auditory and frontal brain regions.
image 3.
Neural activity and effective functional network for screaming call processing.
As the researcher said: “Screaming may send out danger signals, but it seems that only human screams can send out positive emotions, such as extreme joy and pleasure.
The positive emotions in screams seem to have been better than warning signals in humans.
Given priority.This change in priority may be due to the continuous development of human beings and the requirements of the complex social environment.
"Reference: https://journals.
plos.
org/plosbiology/article?id=10.
1371/journal.
pbio.
3000751 Note: This article is intended to introduce medical research progress and cannot be used as a reference for treatment plans.
If you need health guidance, please Go to a regular hospital for treatment.
Recently, researchers at the University of Zurich have conducted in-depth and systematic studies on various human screams.
Screams are an effective way to convey emotional signals, which are highly relevant in socio-biological interactions.
In non-human primates and other mammals, screaming sounds often appear as warning signs under negative circumstances, such as social conflicts, the presence of predators, or other environmental threats.
In humans, this is an instinctive or reflex action that shows strong emotions.
Previously, it was assumed that humans use screams to send out danger signals and frighten predators.
Related research has also focused on fear screams.
However, humans not only scream when they are fearful and aggressive, but also experience other emotions (such as Desperate and elated) also scream.
Therefore, the broader significance of various types of screams needs to be further explored.
On April 13, 2021, researchers from the University of Zurich published a new study in "PLOS Biology" entitled "Neurocognitive processing efficiency for discriminating human non-alarm rather than alarm scream calls".
Studies have shown that: humans can show at least 6 different types of screams.
Among them, non-alarm screams will cause more activity in the auditory and frontal brain regions, while alarm screams make people's decision-making discriminatory.
First, the research team collected 420 primitive screams based on the daily, social and cultural manifestations of many human screams, as well as the diversity of human emotional vocalizations, and solved this knowledge gap through human psychoacoustics, perceptual decision-making and neuroimaging experiments.
.
In the study of human psychoacoustics, researchers found that: human screams are not limited to threatening signals for alarms, but also show at least 6 different types of screams, including (a) when experiencing a strong sense of pleasure Screams, (b) crying screams of sadness and despair, (c) screams of joy and elation, (d) screams of pain, (e) screams of anger and rage, and (f) terrible Scream (Figure 1).
Figure 1.
Sound descriptions and alarm levels of 6 different types of screams.
At the same time, the researchers divided all screams into neutral screams, non-alarm screams (pleasure, sadness, joy ac) and alarm screams (pain, anger, fear df).
Then in the question of the decision-making process, the researchers selected screams with the same basic recognition rate.
They found that the classification speed of alarm screams was slower and the error rate was higher.
Compared with non-alarm screams, the perceptual discrimination of alarms is reduced.
Figure 2.
Perceptual decision-making for perceived screams.
In terms of neurocognitive efficiency, functional magnetic resonance imaging (fMRI) scan results show that humans respond faster and more accurately to screams of pleasure or pleasure, and are more sensitive to nerves, that is, non-alarm screams.
It is more effectively perceived and processed by the brain than the scream of an alarm.
Specifically, fewer alarm screams cause more activity in the auditory and frontal brain regions.
image 3.
Neural activity and effective functional network for screaming call processing.
As the researcher said: “Screaming may send out danger signals, but it seems that only human screams can send out positive emotions, such as extreme joy and pleasure.
The positive emotions in screams seem to have been better than warning signals in humans.
Given priority.This change in priority may be due to the continuous development of human beings and the requirements of the complex social environment.
"Reference: https://journals.
plos.
org/plosbiology/article?id=10.
1371/journal.
pbio.
3000751 Note: This article is intended to introduce medical research progress and cannot be used as a reference for treatment plans.
If you need health guidance, please Go to a regular hospital for treatment.
