PROJECT SUMMARY/ABSTRACT In order to investigate Aim 3) fetal neurobehavioral development of the parent grant “Electronic Ciga- rettes During Pregnancy: Impact on Fetal Development” (R01 DA 045492), the proposed administrative supplement to this parent grant would allow the awarded undergraduate research student (Cyrena Mat- ingou) an opportunity to develop psychology related coding skills by utilizing The Fetal Neurobehav- ioral Coding System (FENS). The FENS coding system was developed by MPI Salisbury and incorporates observational data from real-time ultrasound with fetal heart rate and activity data from fetal actocardiography. The FENS was designed to reveal deficits in high-risk and substance-exposed fe-tuses201-204 and has been utilized by our group to study fetuses exposed to maternal depression, substance use, psychotropic medica- tions and conventional cig exposure. In the parent study, we will utilize the FENS to investigate neurobehav- ioral responses to a novel voice stimuli (mother vs stranger) paradigm. Overall, this internship offers students meaningful knowledge and experience in biobehavioral research that may be carried on throughout their un- dergraduate and postgraduate studies and beyond.