Scientists talked about the effect of the parallel work of the senses on the reaction

Scientists have uncovered the mechanism by which the brain combines information from different sensory organs, speeding up human reactions. This is stated in the material of the Medical Xpress magazine, which was reviewed by Izvestia on August 16.

For many years, scientists have known that the simultaneous use of two senses, such as sight and hearing, allows you to respond more quickly to external stimuli. For example, potential prey that receives visual and auditory signals about the approach of a predator has a better chance of survival. A new study by scientists has shown how the brain integrates different sensations.

"The more we know about the basic architecture of the brain, the more accurately we can interpret behavioral and neural differences in different groups and develop diagnostic and therapeutic approaches," said Simon Kelly, professor at University College Dublin.

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The participants in the experiment watched a simple animation of dots and listened to a sequence of tones by pressing a button when changing dots, tones, or both at the same time. The EEG showed that with simultaneous changes, auditory and visual decision processes develop in parallel, but combine in the motor system, speeding up the reaction.

Computer models have confirmed that the decision to act begins through separate channels, but is integrated before sending a signal to the motor areas of the brain. This explains why combined audiovisual stimuli allow a person to react faster to changes. The study demonstrates a neural architecture model where different information collection processes converge into a single motor solution, Kelly added.

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Expert Maria Molostvova spoke on July 21 about the impact of sleep quality on brain health. She noted that chronic sleep disorders can cause serious harm to brain function, including an increased risk of cardiovascular and autoimmune diseases.

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