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What Decides The Nature Of Our Memories?

Image Credits: geneticsofdepression.co.uk

As information is encoded, the brain gives it an emotional "valence," imprinting memories of positive or negative events.

Image Credits: geneticsofdepression.co.uk

A molecule known as neurotensin distinguishes between memories that bring on a smile and those that bring on a frown

Image Credits: theguardian.com

The amygdala, known as the "fear centre" of the brain, reacts to happiness and other emotions.

Image Credits: Wired.com

It was discovered that neurons change their release of neurotensin when the brain evaluates fresh events in the present.

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That shift directs the information to travel down various brain pathways to be either positively or negatively stored as memories.

Image Credits: theguardian.com

The finding implies that the brain may be predisposed to remembering things fearfully when it creates memories.

Image Credits: Wired.com

For survival, it is essential that the brain be able to sort stimuli as positive or negative.

Image Credits: theguardian.com

This finding, which is truly amazing, will significantly alter how psychiatric theories of fear and anxiety are thought about.

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