Sunday November 17, 2019

Research Shows that Narcissistic People are Less Likely to Suffer from Depression

A key finding of the research was that grandiose narcissism can increase mental toughness and this can help to offset symptoms of depression

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Narcissistic
Vulnerable Narcissistic People are likely to be more defensive and view the behaviour of others as hostile whereas grandiose narcissists usually have an over inflated sense of importance and a preoccupation with status and power. Pixabay

Researchers from the Queen’s University Belfast have found that people who have grandiose narcissistic traits were more likely to be “mentally tough”, feel less stressed and also less vulnerable to depression.

While narcissism may be viewed by many in society as a negative personality trait, the researchers have revealed that it could also have benefits, according to the study published in the journal Personality and Individual Differences.

“Narcissism is part of the ‘Dark Tetrad’ of personality that also includes Machiavellianism, Psychopathy and Sadism. There are two main dimensions to narcissism – grandiose and vulnerable,” said study researcher Kostas Papageorgiou.

“Vulnerable narcissists are likely to be more defensive and view the behaviour of others as hostile whereas grandiose narcissists usually have an over inflated sense of importance and a preoccupation with status and power.”

According to the researchers, individuals high on the spectrum of dark traits, such as narcissism, engage in risky behaviour, hold an unrealistic superior view of themselves, are overconfident, show little empathy for others, and have little shame or guilt.

The papers include three independent studies each involving more than 700 adults in total and highlights some positive sides of narcissism, such as resilience against symptoms of psychopathology.

Narcissistic
People who have grandiose Narcissistic traits were more likely to be “mentally tough”, feel less stressed and also less vulnerable to depression. Pixabay

A key finding of the research was that grandiose narcissism can increase mental toughness and this can help to offset symptoms of depression.

It also found that people who score high on grandiose narcissism have lower levels of perceived stress and are therefore less likely to view their life as stressful.

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“The results from all the studies that we conducted show that grandiose narcissism correlates with very positive components of mental toughness, such as confidence and goal orientation, protecting against symptoms of depression and perceived stress,” Papageorgiou said. (IANS)

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Immune Cells Become Active and Repair Brain While Sleep: Study

For the findings, researchers conducted the study on mice

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Study suggests that the enhanced remodeling of neural circuits and repair of lesions during Sleep may be mediated in part by the ability of microglia to dynamically interact with the Brain. Pixabay

Researchers have found that immune cells called microglia, which play an important role in reorganising the connections between nerve cells, fighting infections, and repairing damage, are also primarily active while we sleep.

Microglia serve as the brain’s first responders, patrolling the brain and spinal cord and springing into action to stamp out infections or gobble up debris from dead cell tissue.

“This research shows that the signals in our brain that modulate the sleep and awake state also act as a switch that turns the immune system off and on,” said study lead author Ania Majewska, Professor at University of Rochester in the US.

In previous studies, Majewska’s lab has shown how microglia interact with synapses, the juncture where the axons of one neuron connects and communicates with its neighbours.

The microglia help maintain the health and function of the synapses and prune connections between nerve cells when they are no longer necessary for brain function.

For the findings, researchers conducted the study on mice.

The current study points to the role of norepinephrine, a neurotransmitter that signals arousal and stress in the central nervous system.

This chemical is present in low levels in the brain while we sleep, but when production ramps up it arouses our nerve cells, causing us to wake up and become alert.

The study showed that norepinephrine also acts on a specific receptor, the beta2 adrenergic receptor, which is expressed at high levels in microglia.

When this chemical is present in the brain, the microglia slip into a sort of hibernation.

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Researchers have found that immune cells called microglia, which play an important role in reorganising the connections between nerve cells, fighting infections, and repairing damage, are also primarily active while we Sleep and affects Brain. Pixabay

The study, which employed an advanced imaging technology that allows researchers to observe activity in the living brain, showed that when mice were exposed to high levels of norepinephrine, the microglia became inactive and were unable to respond to local injuries and pulled back from their role in rewiring brain networks.

“This work suggests that the enhanced remodeling of neural circuits and repair of lesions during sleep may be mediated in part by the ability of microglia to dynamically interact with the brain,” said study first author Rianne Stowell.

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“Altogether, this research also shows that microglia are exquisitely sensitive to signals that modulate brain function and that microglial dynamics and functions are modulated by the behavioural state of the animal,” Stowell said.

The study was published in the journal Nature Neuroscience. (IANS)