Neuroscience

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Posts tagged supramarginal gyrus

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Outgrowing emotional egocentricity
Children are more egocentric than adults. Scientists from the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig  have demonstrated for the first time that children are also worse at putting themselves in other people’s emotional shoes. According to the researchers, the supramarginal gyrus region of the brain must be sufficiently developed in children for them to be able to overcome their egocentric take on the world.
When little Philip rejoices at winning the prize in a game, it is almost impossible for him to understand that his best friend Tom, who has just lost, is not as jubilant. The opposite also applies. “Children are simply more egocentric,” says Nikolaus Steinbeis, a researcher at the Leipzig-based Max Planck Institute, summing up the general hypothesis.
Egocentrism refers to the inability to differentiate between one’s own point of view and that of other people. Egocentric people consider themselves to be the centre of all activity and assess all events and circumstances from this perspective. They project their own ideas, fears and desires onto the environment and others.
Up to now, all that the research in this area had to offer was a few theoretical ideas and studies on the development of cognitive perspective-taking. The question concerning egocentrism in connection with people’s emotional states and the development of this phenomenon over the course of childhood had been largely ignored. “We currently know very little about how emotional egocentrism is expressed in childhood and about the neuronal and cognitive processes on which this is based,” explains Steinbeis.
In order to compare the emotional states of different age groups, Steinbeis used an innovative game involving monetary rewards and punishments. “Earlier studies have shown that similarly strong emotional states can be triggered in both children and adults using such rewards and punishments. Children take as much delight as adults in monetary rewards and they are just as frustrated by losses,” he says.
During the game, two people competed against each other without, however, being able to see each other.  Equipped with a computer screen and keyboard, the test subjects were asked to demonstrate their reaction speed. The participants were informed by the screen as to whether they or their opponents could rejoice in victory or despair in defeat. They were then asked to estimate the emotions experienced by their opponents. Of principal interest was how strongly the players’ own results influenced their assessments of their opponents’ emotional state. For example, if, due to their own status as a winner, a participant assessed their counterpart as being happy, despite the fact that the latter had just lost the game, this indicated that the winner was egocentrically projecting their own state onto the opponent.
The results of the study reveal that adults found it easy to overcome this tendency, whereas children between the ages of 6 and 13 tended to be guided by their own emotions when assessing those of others. The ability to assess the emotions of our counterparts independently of our own emotional state improves with age. “In general, the older a child is, the better he or she will be able to put itself in the emotional position of another person,” says Steinbeis, explaining the study findings.
In addition, the scientists measured the activity of different regions of the brain in MRI scanners and discovered a region that plays a crucial role in our ability to overcome our own feelings. The right supramarginal gyrus is a region of the temporoparietal junction, which is generally necessary for overcoming one’s own point of view. It is strongly linked with other brain regions like the anterior insula, which is exclusively responsible for enabling us to identify with other people’s emotional states. “This means that, with the right supramarginal gyrus, we have located a region which mainly functions in enabling us to overcome our own feelings,” says Steinbeis. Moreover, the scientists established that, with increasing age, the cortical thickness of the nerve fibres in this area declines. This suggests that the nerve fibres are more active as we get older.
Emotional egocentrism plays a major role in many conflicts, as the inability to overcome egocentric thinking leads to inappropriate social behaviour.  People affected by this condition experience rejection, which has been shown to have a negative impact on health and development. Scientists would therefore like to understand the reasons for socially detrimental behaviour and develop options for targeted intervention.

Outgrowing emotional egocentricity

Children are more egocentric than adults. Scientists from the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig  have demonstrated for the first time that children are also worse at putting themselves in other people’s emotional shoes. According to the researchers, the supramarginal gyrus region of the brain must be sufficiently developed in children for them to be able to overcome their egocentric take on the world.

When little Philip rejoices at winning the prize in a game, it is almost impossible for him to understand that his best friend Tom, who has just lost, is not as jubilant. The opposite also applies. “Children are simply more egocentric,” says Nikolaus Steinbeis, a researcher at the Leipzig-based Max Planck Institute, summing up the general hypothesis.

Egocentrism refers to the inability to differentiate between one’s own point of view and that of other people. Egocentric people consider themselves to be the centre of all activity and assess all events and circumstances from this perspective. They project their own ideas, fears and desires onto the environment and others.

Up to now, all that the research in this area had to offer was a few theoretical ideas and studies on the development of cognitive perspective-taking. The question concerning egocentrism in connection with people’s emotional states and the development of this phenomenon over the course of childhood had been largely ignored. “We currently know very little about how emotional egocentrism is expressed in childhood and about the neuronal and cognitive processes on which this is based,” explains Steinbeis.

In order to compare the emotional states of different age groups, Steinbeis used an innovative game involving monetary rewards and punishments. “Earlier studies have shown that similarly strong emotional states can be triggered in both children and adults using such rewards and punishments. Children take as much delight as adults in monetary rewards and they are just as frustrated by losses,” he says.

During the game, two people competed against each other without, however, being able to see each other.  Equipped with a computer screen and keyboard, the test subjects were asked to demonstrate their reaction speed. The participants were informed by the screen as to whether they or their opponents could rejoice in victory or despair in defeat. They were then asked to estimate the emotions experienced by their opponents. Of principal interest was how strongly the players’ own results influenced their assessments of their opponents’ emotional state. For example, if, due to their own status as a winner, a participant assessed their counterpart as being happy, despite the fact that the latter had just lost the game, this indicated that the winner was egocentrically projecting their own state onto the opponent.

The results of the study reveal that adults found it easy to overcome this tendency, whereas children between the ages of 6 and 13 tended to be guided by their own emotions when assessing those of others. The ability to assess the emotions of our counterparts independently of our own emotional state improves with age. “In general, the older a child is, the better he or she will be able to put itself in the emotional position of another person,” says Steinbeis, explaining the study findings.

In addition, the scientists measured the activity of different regions of the brain in MRI scanners and discovered a region that plays a crucial role in our ability to overcome our own feelings. The right supramarginal gyrus is a region of the temporoparietal junction, which is generally necessary for overcoming one’s own point of view. It is strongly linked with other brain regions like the anterior insula, which is exclusively responsible for enabling us to identify with other people’s emotional states. “This means that, with the right supramarginal gyrus, we have located a region which mainly functions in enabling us to overcome our own feelings,” says Steinbeis. Moreover, the scientists established that, with increasing age, the cortical thickness of the nerve fibres in this area declines. This suggests that the nerve fibres are more active as we get older.

Emotional egocentrism plays a major role in many conflicts, as the inability to overcome egocentric thinking leads to inappropriate social behaviour.  People affected by this condition experience rejection, which has been shown to have a negative impact on health and development. Scientists would therefore like to understand the reasons for socially detrimental behaviour and develop options for targeted intervention.

Filed under supramarginal gyrus emotional egocentricity bias prefrontal cortex children brain development psychology neuroscience science

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I’m ok, you’re not ok
Egoism and narcissism appear to be on the rise in our society, while empathy is on the decline. And yet, the ability to put ourselves in other people’s shoes is extremely important for our coexistence. A research team headed by Tania Singer from the Max Planck Institute for Human Cognitive and Brain Sciences has discovered that our own feelings can distort our capacity for empathy. This emotionally driven egocentricity is recognised and corrected by the brain. When, however, the right supramarginal gyrus doesn’t function properly or when we have to make particularly quick decisions, our empathy is severely limited.
When assessing the world around us and our fellow humans, we use ourselves as a yardstick and tend to project our own emotional state onto others. While cognition research has already studied this phenomenon in detail, nothing is known about how it works on an emotional level. It was assumed that our own emotional state can distort our understanding of other people’s emotions, in particular if these are completely different to our own. But this emotional egocentricity had not been measured before now.
This is precisely what the Max Planck researchers have accomplished in a complex marathon of experiments and tests. They also discovered the area of the brain responsible for this function, which helps us to distinguish our own emotional state from that of other people. The area in question is the supramarginal gyrus, a convolution of the cerebral cortex which is approximately located at the junction of the parietal, temporal and frontal lobe. “This was unexpected, as we had the temporo-parietal junction in our sights. This is located more towards the front of the brain,” explains Claus Lamm, one of the publication’s authors.
On the empathy trail with toy slime and synthetic fur
Using a perception experiment, the researchers began by showing that our own feelings actually do influence our capacity for empathy, and that this egocentricity can also be measured. The participants, who worked in teams of two, were exposed to either pleasant or unpleasant simultaneous visual and tactile stimuli.
While participant 1, for example, could see a picture of maggots and feel slime with her hand, participant 2 saw a picture of a puppy and could feel soft, fleecy fur on her skin. “It was important to combine the two stimuli. Without the tactile stimulus, the participants would only have evaluated the situation ‘with their heads’ and their feelings would have been excluded,” explains Claus Lamm. The participants could also see the stimulus to which their team partners were exposed at the same time.
The two participants were then asked to evaluate either their own emotions or those of their partners. As long as both participants were exposed to the same type of positive or negative stimuli, they found it easy to assess their partner’s emotions. The participant who was confronted with a stinkbug could easily imagine how unpleasant the sight and feeling of a spider must be for her partner.
Differences only arose during the test runs in which one partner was confronted with pleasant stimuli and the other with unpleasant ones. Their capacity for empathy suddenly plummeted. The participants’ own emotions distorted their assessment of the other person’s feelings. The participants who were feeling good themselves assessed their partners’ negative experiences as less severe than they actually were. In contrast, those who had just had an unpleasant experience assessed their partners’ good experiences less positively.
Particularly quick decisions cause a decline in empathy
The researchers pinpointed the area of the brain responsible for this phenomenon with the help of functional magnetic resonance imaging, generally referred to as a brain scanning. The right supramarginal gyrus ensures that we can decouple our perception of ourselves from that of others. When the neurons in this part of the brain were disrupted in the course of this task, the participants found it difficult not to project their own feelings onto others. The participants’ assessments were also less accurate when they were forced to make particularly quick decisions.
Up to now, the social neuroscience models have assumed that we mainly draw on our own emotions as a reference for empathy. This only works, however, if we are in a neutral state or the same state as our counterpart – otherwise, the brain must counteract and correct.

I’m ok, you’re not ok

Egoism and narcissism appear to be on the rise in our society, while empathy is on the decline. And yet, the ability to put ourselves in other people’s shoes is extremely important for our coexistence. A research team headed by Tania Singer from the Max Planck Institute for Human Cognitive and Brain Sciences has discovered that our own feelings can distort our capacity for empathy. This emotionally driven egocentricity is recognised and corrected by the brain. When, however, the right supramarginal gyrus doesn’t function properly or when we have to make particularly quick decisions, our empathy is severely limited.

When assessing the world around us and our fellow humans, we use ourselves as a yardstick and tend to project our own emotional state onto others. While cognition research has already studied this phenomenon in detail, nothing is known about how it works on an emotional level. It was assumed that our own emotional state can distort our understanding of other people’s emotions, in particular if these are completely different to our own. But this emotional egocentricity had not been measured before now.

This is precisely what the Max Planck researchers have accomplished in a complex marathon of experiments and tests. They also discovered the area of the brain responsible for this function, which helps us to distinguish our own emotional state from that of other people. The area in question is the supramarginal gyrus, a convolution of the cerebral cortex which is approximately located at the junction of the parietal, temporal and frontal lobe. “This was unexpected, as we had the temporo-parietal junction in our sights. This is located more towards the front of the brain,” explains Claus Lamm, one of the publication’s authors.

On the empathy trail with toy slime and synthetic fur

Using a perception experiment, the researchers began by showing that our own feelings actually do influence our capacity for empathy, and that this egocentricity can also be measured. The participants, who worked in teams of two, were exposed to either pleasant or unpleasant simultaneous visual and tactile stimuli.

While participant 1, for example, could see a picture of maggots and feel slime with her hand, participant 2 saw a picture of a puppy and could feel soft, fleecy fur on her skin. “It was important to combine the two stimuli. Without the tactile stimulus, the participants would only have evaluated the situation ‘with their heads’ and their feelings would have been excluded,” explains Claus Lamm. The participants could also see the stimulus to which their team partners were exposed at the same time.

The two participants were then asked to evaluate either their own emotions or those of their partners. As long as both participants were exposed to the same type of positive or negative stimuli, they found it easy to assess their partner’s emotions. The participant who was confronted with a stinkbug could easily imagine how unpleasant the sight and feeling of a spider must be for her partner.

Differences only arose during the test runs in which one partner was confronted with pleasant stimuli and the other with unpleasant ones. Their capacity for empathy suddenly plummeted. The participants’ own emotions distorted their assessment of the other person’s feelings. The participants who were feeling good themselves assessed their partners’ negative experiences as less severe than they actually were. In contrast, those who had just had an unpleasant experience assessed their partners’ good experiences less positively.

Particularly quick decisions cause a decline in empathy

The researchers pinpointed the area of the brain responsible for this phenomenon with the help of functional magnetic resonance imaging, generally referred to as a brain scanning. The right supramarginal gyrus ensures that we can decouple our perception of ourselves from that of others. When the neurons in this part of the brain were disrupted in the course of this task, the participants found it difficult not to project their own feelings onto others. The participants’ assessments were also less accurate when they were forced to make particularly quick decisions.

Up to now, the social neuroscience models have assumed that we mainly draw on our own emotions as a reference for empathy. This only works, however, if we are in a neutral state or the same state as our counterpart – otherwise, the brain must counteract and correct.

Filed under empathy emotion cerebral cortex supramarginal gyrus psychology neuroscience science

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