- iSDaily Thursday – February 15th, 2018 – Episode 030
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Getting a tad forgetful? Can’t process things as fast as you once could? In other words, are you developing a case of the dumbs as you get older? If so, this scientific breakthrough could be just what you needed. Scientists believe they have developed a learning method to actually restore those lost brain powers. In other words, you could have the brain of a child, yeah, a child. And that’s a GOOD THING!
August 7, 2017
ATR Brain Information Communication Research Laboratry Group
When an electric circuit breaks down, we can repair it by restoring connections in the circuit. Is it possible to restore the connections in our brain? And by doing so, is it possible to restore declining cognitive functions? Numerous regions of the brain are connected together and constitute a huge network. Researchers have developed a learning method to change cognitive function by manipulating connections in the brain.
The study, published in the journal Cerebral Cortex, could lead to important applications in clinical, rehabilitation and learning-assistive methods taking advantage of a neural plasticity.
Thanks to advances in brain sciences, it is possible to decode one’s brain network by measuring functional MRI (fMRI) activity just for five minutes. Since the brain network is formed by genetics and experiences, it is possible to predict one’s age, personality, or performance in cognitive functions from functional connectivity patterns in their brain network. In psychiatric disorders, functional connectivity, which is measured by temporal correlations between some brain regions, is too much increased or decreased compared to healthy control. It has been suggested that these abnormal connections cause the decrement of cognitive function. However, treatments of psychiatric disorders (e.g., drugs and cognitive behavior therapy) could not increase or decrease a specific connectivity between two regions, because these methods give broad effects on the global network. Therefore, the method, which can induce the both direction of change (i.e., an increase or a decrease) in a specific connection and a change in cognitive function, has been long-awaited.
The team developed a state-of-the-art method to change the connection in human brain and change cognitive function using a new technique called “Functional connectivity neurofeedback training.” This technique uses fMRI brain scanning to monitor the functional connectivity between two brain regions, while participants performed a simple motor-imagery task. When the goal was to increase functional connectivity, a monetary reward was given on trials with high temporal correlation between the two relevant brain activities was detected. On the other hand, when the goal was to decrease functional connectivity, reward was given on trials with low temporal correlation. This training could induce the aimed direction of change (i.e., an increase or a decrease) in functional connectivity, and differential changes in cognitive performance from pre- to post-neurofeedback training according to the direction of change in connectivity.
When an electric circuit breaks down, we can repair it by restoring connections in the circuit. Is it possible to restore the connections in our brain? And by doing so, is it possible to restore declining cognitive functions? Numerous regions of the brain are connected together and constitute a huge…
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