Brain activity during rest provides idea to intelligence

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The ability of an adult to learn and to perform cognitive tests is directly associated to how active a mind is during rest, UNSW researchers have found.

The study, published in a peer-reviewed journal Brain Imaging and Behaviour, found that how good an aged adult achieved on denunciation recall, memory executive duty tests was directly associated to a activity of a mind while in a resting state, or not doing any specific tasks.

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Researchers from the Centre for Healthy Brain Ageing (CHeBA) at UNSW Sydney used captivating inflection imaging (MRI) images of a mind in 67 cognitively healthy adults aged between 73 to 90 years. The MRI images prisoner activity of a whole mind during rest when a participants were not meditative of anything in sold and had their eyes closed. They were also tested on their ability to perform 3 common neuropsychological tests, administered by lerned psychology graduates.

“We found that a tellurian mind is already rather pre-determined to do good or perform feeble in testing,” said lead researcher Professor Perminder Sachdev, Co-Director of CHeBA. “Brains differ from any other in terms of resting state activity and it’s not an even personification field. If there is activity in certain mind networks when a mind isn’t doing anything, afterwards that chairman is compliant to do improved than others on a tasks that rest on that network.”

In a past, identical investigate had focused on specific mind regions, however this investigate examined 3D “voxel” images of a whole brain, thereby not constraining a formula formed on prior knowledge.

The formula found that how good an particular did on denunciation and executive duty tests was associated with organic connectivity during rest in a frontal and temporal cortices. For memory retrieval, clever resting state activity was located in a defective temporal cortices.

“The subsequent theatre in investigate would be to inspect if this resting state activity of a mind can be mutated by training. There is a probability that training could boost a brain’s unique network, improving altogether mental opening and presumably forestall cognitive decrease or even dementia,” Professor Sachdev said.

Source: UNSW

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