A study by a Swiss scientist shows that our brains will lower the volume of the heartbeat so that it does not interfere with the information we receive from the senses, and if the visual signal is synchronized with the heartbeat, the filtering of the heartbeat can interfere with visual perception. process.
A data map of the electrocardiograph recording device. More than 150 volunteers participated in the experiment and they were asked to perceive a shape that flashed across the screen. Volunteers are more difficult to perceive when the shape flashes just in time with the heartbeat.
The results of the study show that the insular cortex plays an important role in sensing and distinguishing between internal and external signals, and the brain will lower the "volume" of certain signals to focus more on other signals.
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