Moving your eyes from left to right may enhance the ability of the brain to monitor the source of it’s memories by increasing hemispheric interaction.
Horizontal eye movements are thought to cause the two hemispheres of the brain to interact more with one another, and communication between brain hemispheres is important for retrieving certain types of memories. [...] The researchers found that the people who performed the horizontal eye movements correctly remembered, on average, more than 10 percent more words, and falsely recognized about 15 percent fewer “lure†words than the people who performed vertical eye movements or no movements at all. (Source: Livescience)
I like research like this because it tells me things about the human mind that I can see, and read on the faces of other people.
