Release date: 2018-07-11
Do you remember the last time you used a paper map and tried to find your position? In the strange streets, ridiculous highways, with advanced navigation systems, you will not get lost. But a new study published in the British journal Nature Communications says satellite navigation can cause people's brains to decline.
Scientists at University College London have 24 volunteers walking through computer-simulated London streets and using functional magnetic resonance imaging to monitor their brain activity. The results showed that when the participants encountered landmark buildings in London, the activity of the hippocampus and prefrontal cortex was significantly enhanced; but when satellite navigation provided them with instructions, these parts of the brain would not be active at all.
The study's lead author, Hugo Spears, believes that when people get lost, they ask for a distress signal in their hippocampus and prefrontal cortex. The hippocampus experience a viable path for us, and the prefrontal cortex helps us plan and decide how to get to the destination. The emergence of satellite navigation "cuts off" the connection between the hippocampus and the prefrontal cortex, and the brain "cannot interest" the path network and does not make any spatial reasoning responses. In this regard, the researchers have the concern that over time, the human hippocampus and prefrontal cortex may shrink into useless "raisins", and we will no longer be able to perform memory-related work. (Xiao Zhongyan)
Source: Life Times
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