In the several years of our life, a traumatic, fearful memory is often remembered ever-so-clearly in our minds compared to a happy, jolly one.
And now, researchers from Tulane University School of Science and Engineering and Tufts University School of Medicine have found out why.
They’ve been studying the formation of fearful memories in the emotional centre of our brain — the amygdala and they have a theory behind the mechanism.
They found that stress neurotransmitter norepinephrine functions fear processing in the brain by stimulating a certain population of inhibitory neurons in the amygdala to generate a repetitive bursting pattern of electrical discharges.
