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Home / Health News / Researchers develop new way to detect exchange of information in brain

Researchers develop new way to detect exchange of information in brain

According to a research described in the journal Nature Methods, a new light-based method has been developed to capture and pinpoint the epicentre of neural activity in the brain. Read on to know more.

By: ANI   | | Published: November 20, 2019 11:04 am
Tags: Brain ability  Brain Activity  
detect light in brain - new ways to detect light in brain - recording the exchange of information between different regions of the brain
People who increased game playing in later years were found to have experienced fewer declines in thinking skills in their seventies -- particularly in memory function and thinking speed.©Shutterstock.

The approach, described in the journal Nature Methods, lays the foundation for novel ways to map connections across different brain regions–an ability that can enable the design of devices to image various areas of the brain and even treat conditions that arise from malfunctions in cells inhabiting these regions, the researchers said. Also Read - Boost your brain power with these everyday foods

The work was led by Ferruccio Pisanello at IIT, Massimo De Vittorio at IIT and University of Salento, and Bernardo Sabatini, the Alice and Rodman W. Moorhead III Professor of Neurobiology in the Blavantik Institute at Harvard Medical School, and funded by the European Research Council and by the National Institutes of Health in the United States. Also Read - Obese people beware: Your weight may have a surprising impact on your brain function



One of the central challenges in modern neuroscience is recording the exchange of information between different regions of the brain, as well as between different cell types. The new method overcomes this challenge by allowing the simultaneous collection of signals from various brain regions through the use of a tapered optical probe. Also Read - Newborns' brain hardwired to see faces, places

The study marks the first instance of successfully using light to decode the activity of specific neuronal populations as well as manipulation of different brain regions with the use of a single probe. The approach relies on bringing fluorescent molecules into specific nerve cells in order to track their electric activity and to measure the level of neurotransmitters–molecules that act as chemical messengers across neurons.

To achieve this, the team used an optical fibre in the shape of a narrow cone with a tip so thin and so precise that it is capable of capturing light from single neurons along regions as long as 2 millimetres (0.07 inches).

The researchers inserted the light-sensing probe inside the striatum, a region of the brain involved in planning movements, and used it to track the release of dopamine, a critical neurotransmitter involved in motor control which also plays a key role in the development of disorders like Parkinson’s disease, schizophrenia and depression.

The device successfully captured neural activity in specific sub-regions of the striatum involved in the release of dopamine during specific behaviours.

The approach has effectively allowed scientists to capture how nerve signals travel in time and space and to gauge the concentration of specific neurotransmitters during specific actions. The method enriches researchers’ methodological repertoire and augments their ability to study the central nervous system and probe the molecular causes of neurological disorders.

Published : November 20, 2019 11:04 am
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