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Decoding Brain Cells' Moods may Manage Autism, Alcoholism

by Bidita Debnath on October 7, 2015 at 11:30 PM
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 Decoding Brain Cells' Moods may Manage Autism, Alcoholism

A new discovery by Indian researchers suggest that brain cells also have different moods, a finding that could impact artificial intelligence and management of healthcare issues like autism and alcoholism.

These brain cells called Purkinje cells, located in the cerebellum at the base of the brain, are essential for our body's balance, co-ordination and the capacity to learn new skills such as riding a bicycle or playing a piano.

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In a recent study, scientists Mohini Sengupta and Vatsala Thirumalai from the National Centre for Biological Sciences (NCBS), Bengaluru, reveal that nerve cells found in the cerebellum send out electrical signals in either a constant hum or in sudden bursts.

"Which of the two tunes they choose depends on the voltage across their cell membranes and on input from a specific region of the brain," Thirumalai said.
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"Since the Purkinje nerve cells are affected in conditions like alcoholism, autism and ataxias (lack of muscular coordination), the basic understanding of how they function can help in devising therapies to improve motor skills," Thirumalai said.

In addition, the findings may also aid in designing better robots.

Published recently in the journal eLife, the study carried out in zebra fish (a fresh water fish found in the Ganga and Brahmaputra) showed that Purkinje cells send out electrical signals in two different modes depending on the voltage at their cell surfaces.

The first mode, called the 'down' state, occurred when the inside of the cell was more negative compared to the outside.

In this state, cells were silent until signals from a different part of the brain arrived, at which time, they sent out a burst of impulses.

In the second mode, called the 'up' state, the inside of the cell was less negative compared to the outside and Purkinje cells sent out impulses at a constant rate. In this mode, these cells ignored any impulses coming from other parts of the brain, the researcher said.

These states are reminiscent of a person attentively listening to directions and responding accordingly, or simply 'zoning out' and going their own way irrespective of instructions.

Source: IANS
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