How the brain keeps time finally discovered by scientists – tech2.org

How the brain keeps time finally discovered by scientists



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Read this sentence out loud: "My brain knows how to keep time".

Well, now read it faster.

If scientists observe your brain while reading the same line at different speeds, they may not see as much difference as you think, a new study in Nature Neuroscience shows. The neurons seem to shoot in a similar pattern, whether operating at fast or slow speeds, the research found. But curiously, the same patterns lengthen or compress over time, depending on the speed of the task.

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To do anything, Mehrdad Jazayeri, an author in the studio, said Newsweek to play a melody in a piano to read aloud a tongue twister at different speeds, the brain needs to have a sense of time. Scientists used to believe that the sense of time was created by something like an internal clock or a central pacemaker. But it turns out that the way the brain adjusts to allow creatures to perform those actions at different timescales works less like a clock than you might think.

They came to this conclusion by studying a group of trained monkeys to press a button at different speeds, and to make computer models of the parts of the brain they were studying. Jazayeri's group discovered that neurons in parts of the brain known as the medial frontal cortex, the caudate, and the thalamus produced particular patterns when the same task was performed at different speeds.

A group of neurons involved in a particular task has to go from an initial state to a final state. As Jazayeri says, they have to shoot in a pattern that moves them from point A to point B. That pattern does not change as the speed of an action changes, but the speed at which that orchestra of neurons shoots to move from A to B does it. [19659020]  RTSGSDC [19659010] An athlete sets his watch </span> <span clbad= Thomas Mukoya / Reuters

Researchers interpret this as going with these different patterns for different tasks, the brain has a kind of sphere that It can go up and down depending on the speed of the task that needs to be done.

"It's like the brain is a rubber band, and if you want to do something slower, you stretch it," Jazayeri said.

When an action, such as reading a sentence, was completed at different speeds, Jazayeri's group discovered that these neurons always followed the same pattern, but the pattern "stretched" over a longer time interval and "compressed" "over a time interval as necessary.

So your brain does know how to keep time, but in a way that looks more like an elastic band than a watch.

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