Variations in speech development are likely to be the result of underlying abnormalities in the brain associated with functional organization outcomes. Language development during normal development is extensive and bilateral in the infant's brain. It becomes more lateralized in the left hemisphere in time. According to the recent research, preterm (PT) children showed atypical bilateral language organization in the frontal-temporal regions, whereas at 11-12 years of age they revealed left-sided language organization resembling that of the full-term group. These results show a delayed and atypical neural specialization for language systems in PT born compared to full-term-born children