Acknowledgements

This scientific work is dedicated to my dear parents for their unlimited love and care. We wish to thank:

The parents of the babies for their trust and cooperation.

The hydro therapists at Sheba MC Rehabilitation Pool for their collaboration.

The Haifa University Research Dean Fund for their generous support.

The Magi-Adelis Research Fund for their generous support.

The National Institute for Psychobiology in Israel, for their generous support.
