Fragmented sleep is common in infancy. Although night awakening is known to decrease with age, in some infants night awakening is more persistent and continues into older ages. However, the influence of fragmented sleep on development is poorly known. In the present study, the longitudinal relationship between fragmented sleep and psychomotor…

During a 15-year longitudinal study, 31 Finnish students (risk group) who had been identified as having deficiencies in reading and writing readiness at pre-school through the German Breuer-Weuffen Differentiation Test were compared with their peers (n = 62) in order to study long-term differences that emerged at the starting point of the study.…