An interesting, though limited, study of cognition in subjects, both older and younger, found interesting differences between age groups. The older subjects picked up on more detail in a visual learning experiment, but appeared to be distracted by it. This, the researchers posit, could be an important step toward understanding the strengths and weaknesses in learning tasks, shown by disparate age groups. The Smithsonian has more, here:

While you’re there, have a look at this dreamy photo of a paddler on a misty Minnesota lake at morning, (you may wish to note that the canoeist is demonstrating a poor understanding of proper hull trim):