As it turns out, the opposite is true. Sign language actually results in an earlier onset of spoken language, because motor skills in hands develop before oral skills. Perhaps the most important aspect of learning to sign is the emotional advantage children have when they are able to express what they are unable to say. Parents who use the system say their children are less frustrated and have fewer tantrums. The added benefit of music during Baby Fingers classes not only focuses and motivates babies to learn signs but also may enhance their ability to read.
Studies show a correlation between keeping a steady beat and basic reading skills.
This is partly because of the cadences and phrases involved in reading, and partly because both reading and music are rhythmic. Although Baby Fingers is still in its first year, participants are enthusiastic about the program. She found that Robert came to understand more about the world around him. Now that I use the sign for water, he seems to really know what to expect. Although classes have ended, she still uses the signs she learned and sings songs with him everyday.