Two stimuli are worse than just one

How The Brain Forgets Things To Conserve Energy

A fascinating new explanation of why our brains forget some things we’ve learned. The brain may forget in order to save energy, a new study suggests. So, our brains contain mechanisms that help us erase unnecessary learning. Now scientists have uncovered how this may happen at the cellular level. The results come from a strange finding about how we learn. You may know the story of Pavlov’s dogs, who were taught to salivate at the ringing of a bell because they associated it with being fed. Similarly, both humans and animals can learn to link a certain tone with a puff of air to the eyes. This, of course, causes people to blink — it’s an automatic response. ….[READ]


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