You're here: My Science Blogging » Discovery » Article: Human’s Emotional Recall
Yessi Pratiwi — August 5, 2007 / 5:51 pm
People live in the world that give them precious moments in life. There is a time when we meet the love of our life, when we win scholarship, when we first meet your husbands, even when we crashed in a car accident. A new study said that we have ability to recall emotional events, and it is governed by a common variation in a single gene.
Usually, we recall emotionally charged events far more than mundane ones because they tend to be advantageous in evolutionary terms. Highly emotive incidents trigger the brain to release the hormone and neurotransmitter noradrenaline. Dominique de Quervain, a neuroscientist at the University of Zurich in Switzerland said, this stimulates the amygdala – part of the brain involved with processing emotional reactions – to store memories in the hippocampus and other parts of the brain.
He and colleagues in Germany and Uganda showed photos of strongly positive, neutral and strongly negative emotional events to two large groups of people. They later asked the group members to recall them and describe them in writing. Positive photos included a grandfather with his grandchildren and a wedding scene. Negative ones included an accident victim with a head wound – and images of devastating pollution spills.
Journal reference: Nature Neuroscience (DOI:10.1038/nn1945).
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