Clinical Research Directory

Inclusion criteria * Having an infant hospitalized in the neonatal intensive care unit * Expressing breast milk for the infant * Having a term newborn * Not having twins * Having no health condition that would prevent participation in the study * Being able to speak Turkish * Volunteering to participate in the research. Exclusion criteria * Missing two or more intervention sessions * Leaving more than 5% of the questionnaire's incomplete * The newborn having a high risk of morbidity or mortality * The presence of a congenital malformation in the newborn * Undergoing a surgical procedure during the study period * Having a history of a physical or mental condition that could hinder participation or receiving psychological treatment before or during the intervention. Termination criteria * The participant expressing a wish to withdraw from the study at any stage * Inability to complete the data collection protocol due to the end of the newborn's NICU hospitalization (discharge, transfer etc.) * Failure to maintain adherence to the research protocol (e.g., inability to complete planned milk expression records or scale administrations) * The development of a clinical condition during the study that prevented participation in the intervention or assessments (e.g., an acute health problem, treatment requiring sedation, or the need for intensive medical intervention) * A determination by the research team that continuation was not appropriate in terms of safety or data integrity.