Reduced chunk capacity may impede our ability to understand a sentence.

Children who's brain structure may be slow to mature, or who have neurological deficits; and adults with brain pathologies and/or advanced age related cell loss may have as a result, less chunk capacity.

This can ultimately impede their understanding of sentences. Of course you don't have to be immature or brain damaged to experience this problem. You need only be a Latin student. When I was in the sixth grade, for example, we had to select a language. In the private school I was attending at the time, Latin was the politically correct choice. I suffered through the declensions and conjugations and survived to go on to Latin II in High School.

Here Caesar described in short sentences his exploits as he divided Gaul into three parts, and with his disciplined legions subdued all of the "barbarians."