Often we hear the phrase, 'Basic shameless', or 'It's broken veins shame' which is aimed at people who rated no shame. Be careful if it begins to lose a sense of 'shame' because it means that there are parts of the brain that have been damaged.
Scientists from the University of California, San Francisco and University of California, Berkeley has revealed which parts of the brain that is responsible for the absence of shame appear.
According to researcher Virginia Sturm, his team has identified the parts of the brain on the right front of the so-called 'pregenual anterior cingulate cortex' as a key cause of human shame.
"This is a region of the brain could predict a person's behavior. The smaller part of the brain the less people have no shame, "Virginia said as quoted by ScienceDaily.
Embarrassed at the center 'pregenual anterior cingulate cortex' This position is located deep in the brain that is the right front. Another function of this brain region among others regulate heartbeat and respiration, emotion, addictive behavior and decision-making.
Then it's on people whose brains healthy, feel embarrassed when the brain is going to function optimally. Shyness will make the blood pressure rises, heart rate increases or changes in breathing.
But in people who have a low sense of shame as in Alzheimer's or dementia (dementia), in parts of the brain were smaller than usual.
They generally become more indifferent to the things which, according to the embarrassing because part of the brain 'pregenual anterior cingulate cortex' like 'blinded' to shame.
"When you lose brain ability in this area, you will lose the shame response," Virginia said as quoted by LiveScience.
The scientists believe that the greater the specific brain region, the stronger the brain works associated with the function.
For example, people with open personalities (extrovert) has a central processing larger brains, while those who had anxiously easy error detection center larger.
In conducting the study, researchers asked 79 participants to sing karaoke song 'My Girl', a 1964 hit song sung Temptations. Participants that there are healthy and there is a degenerative neurological disease.
Participants voice recorded and played back without no sound accompanying music. Participants were embarrassed by his voice directly visible from the expression on his face, then sweating and increased heart rate.
Conversely patients who suffered a nervous breakdown look indifferent and had less shame though when they heard the sound very embarrassing.
These findings have been presented Virginia at the annual meeting of the American Academy of Neurology 64th in Hawaii.