Firstly the baby beret worn by the researcher on the baby will be removed at the end of the 12th hour (at the 12th hour and 24th hour of the hospitalization in the clinic) and taken to the Obstetrics and Gynecology Service on the same floor as the NICU without waiting;Odor stimulation will be applied in the form of 30 sec odor-30 sec standby-30 sec odor-30 sec standby-30 sec odor. A total of 4 rSO2 values, including the initial value and the average of the values during three 30 sec stimulation, will be recorded in the "Cortical and Breast Oxygenation Follow-up Form". The amount of the first amount of milk, the total amount of milk until the 12th hour, the amount of oral fluid intake, the amount of milk until the 24th hour (12th hour -24th hour) and the amount of oral fluid intake will be recorded in the Milk Amount Follow-up Form.

Firstly the baby video (visual stimulus) and beret worn by the researcher on the baby will be removed at the end of the 12th hour (at the 12th hour and 24th hour of the hospitalization in the clinic) taken by researcher and taken to the clinic on the same floor as the NICU without waiting; Once the initial rSO2 value has been recorded, the mother will be instructed to sniff the beret uninterruptedly until further warning by the researcher and to watch the image of her baby unfolding on the tablet fixed to the floor during the entire measurement process. Odor stimulation to the mother will be applied in the form of 30 sec odor-30 sec waiting-30 sec odor-30 sec waiting-30 sec odor respectively, and visual stimulation will be applied as uninterrupted 2.5 min. At the end of 24 hours, the Mother-Baby Interaction Form and the MIBS tool will be re-applied as the final test.

Olfactory stimulation: Mothers will be made to smell their babies' odor.

Form; was created by the researcher in accordance with the literature to record cortical and breast oxygenation (Tanimoto et al., 2011; Schafer et al., 2019). NIRS measurement range was accepted as 15-95 for breast and cortical oxygenation. In the study of Tanimoto et al. (2011), the average of the measurement periods of 30 seconds was taken as the initial value; A 5-minute chart has been generated. Similarly in our study; The initial rSO2 value for both cortical and breast will be recorded, and the average rSO2 value for each block will be recorded during 30 seconds of intervention (smell, odor + visual stimulus, control) repeated 3 times. The form contains two charts with 4 cortical and breast rSO2 recordings for the measurement to be made at two different times (12th and 24th hour of birth)

Form; was created by the researcher in accordance with the literature to record cortical and breast oxygenation (Tanimoto et al., 2011; Schafer et al., 2019). NIRS measurement range was accepted as 15-95 for breast and cortical oxygenation. In the study of Tanimoto et al. (2011), the average of the measurement periods of 30 seconds was taken as the initial value; A 5-minute chart has been generated. Similarly in our study; The initial rSO2 value for both cortical and breast will be recorded, and the average rSO2 value for each block will be recorded during 30 seconds of intervention (smell, odor + visual stimulus, control) repeated 3 times. The form contains two charts with 4 cortical and breast rSO2 recordings for the measurement to be made at two different times (12th and 24th hour of birth)

It was created by the researcher in line with the literature (Turhan, 2020). The form will record the amount of initial milking, the total amount of milk up to the 12th hour, and the amount of oral fluid intake, the total amount of milk between the 12th-24th hour onwards, and the amount of oral fluid intake.