Though one-year-old babies are not able to speak, they can think logically, according to a new study in the journal Science. This new research — which comes from researchers at John Hopkins University — shows the earliest known evidence of human’s ability to reason. While scientists previously believed that humans developed the ability much later in life, the team behind the recent research shows differently.
To find the new results, scientists scanned the eyes of 48 babies in order to test how well they could use and understand the process of elimination. In this case, the babies looked at animations where two different objects — such as a flower and dinosaur — went behind a barrier. An animated cup then removed one of the objects. However, then the barrier went down, the object that was supposed to be removed was still around.
By tracking the babies’ eyes, the team found that the infants stared for extended periods of time when the animations did not match up. That then indicated they were confused, which only comes with the ability to reason.
Further research on this study could be used to better understand the brain and diagnose the cognitive disability. It may also allow scientists to understand how younger babies think and shed light on the human ability to reason.