The study involves triads of mother, father, moderately/late preterm born infant, admitted to the NICU. The population of moderately preterm infants admitted to a Neonatal Intensive Care Unit (NICU) and their parents are individuals who face a unique and complex set of challenges. These infants are at a stage when many of their organs and body systems are not yet fully developed. This incomplete development makes them particularly vulnerable to various medical complications.

As for the parents of these infants, the experience of having a baby admitted to the NICU is often a source of great emotional and psychological stress. Preterm birth, which is generally unexpected, can generate feelings of anxiety, fear and uncertainty about their baby's short- and long-term health. They need clear and understandable informational support to help them feel more involved and less helpless in their baby's care.

Each individual infant included in the study will be assessed 3 times a week for at least two weeks: specifically, two detections of neurobehavioral states in response to interaction with the mother, two detections with the father, and two detections with the nurse(s) will be made.

For each infant involved in the study, an audio/video recording of cradle movements and vocalizations will be made at 3 different consecutive times (5 minutes each): baseline; recording during interaction with either parent or nurse; post-interaction assessment.

The parent or nurse is asked to interact freely with the baby, choosing whether to use voice and touch or only one of the sensory stimulation channels. During the interactions, parents and nurse will in turn be assessed relative to some basic physiological parameters through the use of a band applied to the chest; the infant's physiological parameters during the 3 times will also be recorded.

The NBAS is best described as a neurobehavioral assessment scale, designed to describe the newborn's behavioral responses to his/her new extrauterine environment and to document the contribution of the newborn infant to the development of the emerging parent-child relationship. It assesses the newborn's behavioral repertoire with 28 behavioral items, each scored on a 9-point scale. It also includes an assessment of the infant's neurological status on 20 items, each scored on a 4-point scale. It is used to examine the effects of prematurity, low birthweight, undernutrition and a range of pre-and perinatal risk factors, the effects of prenatal substance exposure. The exam does not yield a single score but instead assesses the baby's capabilities across different developmental areas and describes how the baby integrates these areas as s/he deals with her/his new environment.

The EPDS is the most widely used tool for the screening of perinatal affective disorders during the transition to parenthood. It consists of 10 questions related to various symptoms of depression. The questions on the EPDS focus on depressed mood, anxiety and anhedonia. The EPDS has been constructed to assess depressive symptoms in postpartum women, but it can be used to make extremely fast screening in men who are experiencing the transition to parenthood.

The response format is a 4-point Likert scale (0 to 3), with an overall score between 0 and 30. A total score of greater than 10 indicates possible depression for mothers, whereas the optimal cutoff for fathers is 12/13.