A new study on users of Nicaraguan Sign Language gives insight into newly adapted languages because NSL is only 30 yeras old. Researchers first noticed that older users of Nicaraguan Sign Language had trouble communicating about right and left. They also had difficulty with navigation. The study suggests some groups may have trouble grasping particular ideas because the concepts are not supported by their language. Details of the study are in the journal
Proceedings of the National Academy of Sciences. Read more about the study
here.