Generally, GPS are using a broad level in this modern era. The GPS navigation uses to get to your destination may 'switch off' the parts of your brain that would otherwise be used to simulate different ways and a study has found.

“If you are having a hard time navigating the mass of streets in a city, you are likely putting high demands on your hippocampus and prefrontal cortex,” senior paper author Dr. Hugo Spiers (UCL Experimental Psychology) says. You use the hippocampus for memory and navigation, and the prefrontal cortex for ultimately deciding which way to turn. “When we have technology telling us which way to go, however, these parts of the brain simply don’t respond to the street network. In that sense, our brain has switched off its interest in the streets around us.”

As per researchers study at University College London (UCL) in the UK, they study on 24 volunteers navigating a simulation in central London while undergoing brain scans. They investigated all the activity in the hippocampus, a brain region involved in memory and navigation, and the prefrontal cortex which is involved in planning and decision-making. All Volunteers GPS navigation saw no increase in brain activity.

The team also mapped the labyrinth of London's streets to understand how the volunteer's brain regions reacted to them. When volunteers navigated manually then their hippocampus and prefrontal cortex had spikes of activity when volunteers entered new streets. Then brain activity was greater when the number of options to choose from increased, there was no additional activity was detected when people followed Satnav instructions. "If you are having a hard time navigating the mass of streets in a city, you are likely putting high demands on your hippocampus and prefrontal cortex," said Hugo Spiers from UCL.

He said that when we have technology telling us which way to go, however, these parts of the brain simply do not respond to the street network. In that sense, our brain has switched off its interest in the streets around us.

The latest researcher study suggests that drivers who follow satnav directions do not engage their hippocampus, likely limiting any learning of the city street network.