How The Brain Multitasks

Researchers say they have added to evidence that a shell-shaped region in the center of the mammalian brain, known as the thalamic reticular nucleus or TRN, is likely responsible for the ability to routinely and seamlessly multitask.  The process, they suggest, is done by individual TRN neurons that act like a "switchboard," continuously filtering sensory information and shifting more or less attention onto one sense -- like sight -- while relatively blocking out distracting information from other senses, including sound. read more

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