Photo credit: Xiong Jiang, Georgetown University
Categorization, or the recognition that individual objects share similarities and can be grouped together, is fundamental to how we make sense of the world. Previous research has revealed how the brain categorizes images. Now, researchers funded by the National Science Foundation (NSF) have discovered that the brain categorizes sounds in much the same way.
To find out how the brain categorizes auditory input, the researchers invented new sounds using an acoustic blending tool to produce sounds from two types of monkey calls. The blending produced hundreds of new sounds that differed from the original calls.
Subjects listened to several hundred calls and categorized them under two arbitrary labels that were created by the researchers. The researchers used functional MRI prior to and following the training to image subjects’ brains while they listened to the sounds, but did not yet label them. The results showed that learning to categorize the sounds had increased the brain’s sensitivity to the acoustic features that distinguished one sound from another.
Researchers believe these findings reveal what may not only be a general mechanism about how the brain learns, but also about how learning changes the brain and allows the brain to build on that learning. The work has potential implications for understanding individual differences in language learning and can provide a foundation for understanding and treating people with learning disorders and other disabilities.
Learn more here: http://bit.ly/2vri3Ij
If you want to cure boredom, be curious. If you’re curious, nothing is a chore; it’s automatic – you want to study. Cultivate curiosity, and life becomes an unending study of joy.
Tony Robbins (via lazyyogi)
ASTONISHING, said Death. REALLY ASTONISHING. LET ME PUT FORWARD ANOTHER SUGGESTION: THAT YOU ARE NOTHING MORE THAN A LUCKY SPECIES OF APE THAT IS TRYING TO UNDERSTAND THE COMPLEXITIES OF CREATION VIA A LANGUAGE THAT EVOLVED IN ORDER TO TELL ONE ANOTHER WHERE THE RIPE FRUIT WAS. Fighting for breath, the philsopher managed to say, ‘Don’t be silly.’ THE REMARK WAS NOT INTENDED AS DEROGATORY, said Death. UNDER THE CIRCUMSTANCES, YOU HAVE ACHIEVED A GREAT DEAL.
Terry Pratchett, “Death and What Comes Next” (A Blink of the Screen) (Tired of dealing with philosophers but never tired of humanity as a whole.)
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