EEG and NIRS in Preterm Infants

Experimental cross-sectional study of a single application (vojta therapy or massage) in preterm and non-preterm infants to test whether there are differences in brain activation and oxygenation that occur with both techniques between term and preterm infants. Secondly, the brain activation and oxygenation produced by both physiotherapy techniques will be tested separately to establish comparisons between the two groups. Finally, between 3 - 6 months, we will analyse whether there are changes in gaze fixation (eye tracker) in the 4 study arms to see if there are differences between term and preterm infants but also the differences between the immediate effectiveness of both techniques.