- Home Visit: A study investigator will visit the home for 1 hour to film the mother and baby during the mother s typical daily activities. This visit will take place when the baby is about 5 months old. At the end of the visit, the mother will be given a variety of surveys to fill out at home and return at the next visit (see Lab Visit below). The survey questions deal with the mother s relationship with her partner, support from people in her life, typical behaviors of her infant, and how often she feels certain emotions. A packet of surveys will also be left for the participant s partner to complete and mail back to the investigator. The partner may or may not be the child s biological father and may or may not choose to participate in the study.