« The research, published in a Royal Society journal on Wednesday, found that people who played games such as Call of Duty, Grand Theft Auto V and Tomb Raider were more likely to employ navigational strategies associated with decreased grey matter in the hippocampus part of the brain. […] By questioning the participants, the researchers examined whether they tackled the virtual reality task using a spatial or response learning strategy. A spatial strategy involves building relationships between landmarks in an environment and relies on the hippocampus.
Some people believe that they perceive the world as it actually is. There are many experiments that can disprove this notion. For instance, take a look at Edward H Adelson’s checker shadow illusion. To me, the two squares A and B look so obviously different that if I didn’t know it was an optical illusion, I would never pause to think that they might be exactly the same color. Similar experiments can demonstrate that your hearing is just as subjective.