Our Brain may be Ready for Action, Even at Rest

by Bidita Debnath on  March 11, 2017 at 10:58 PM Research News
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Your brain networks may be waiting in a state of potentiation to execute even the simplest of behaviours, even while you are taking rest, a finding that may help in improving treatments for neuropsychiatric syndromes, researcher has showed.
 Our Brain may be Ready for Action, Even at Rest
Our Brain may be Ready for Action, Even at Rest

In the study, the researchers studied brain network interactions between two important brain regions: the dorsal anterior cingulate cortex (dACC) -- used for control -- and the supplementary motor area (SMA) -- used for motor movements -- during a simple motor control behaviour, for example tapping forefinger to a visual cue.

The results, published in the journal PLoS One, showed that the network interactions from the SMA to the dACC increased, during the rest periods that alternated between the motor behaviour task.

"These results suggest that directional interactions from the SMA to the dACC during the rest period may in fact potentiate task-related interactions in the opposite direction," said Vaibhav Diwadkar, Professor at Wayne State University in Michigan, US.

For the study, the team used a simple experimental task, having each participant perform a simple motor control behaviour -- tapping their forefinger to a visual cue -- that alternated between behaviour and rest. Brain activity was acquired using functional MRI (fMRI).

The results reveal aspects not only of normative brain function but may also provide new directions for characterising disordered network interactions in neuropsychiatric syndromes, Diwadkar added.

Source: IANS

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