Clinic Staff

Roseanne Lesack, PhD, BCBA-D, ABPP is a licensed psychologist in the State of Florida, a Board Certified Behavior Analyst at the doctoral level, and diplomate of the American Board of Professional Psychology in Child and Adolescent Psychology. Prior to moving to Florida, Dr. Lesack completed her training and served as an associate professor at Emory University School of Medicine and the Marcus Autism Center in Atlanta, GA. As the Director of the Unicorn Children’s Foundation Clinic, she oversees the Challenging Behavior Clinic, the Developmental Assessment Clinic, and the Feeding Disorders Clinic.

Jennifer M. Pusins, CScD, CCC-SLP, IBCLC is a licensed and certified speech-language pathologist who specializes in infant/pediatric feeding and swallowing. Dr. Pusins received her Doctor of Clinical Science (CScD) in Medical Speech Pathology degree from the University of Pittsburgh. She has extensive experience in infant/pediatric feeding and swallowing disorders and has worked in both the outpatient and inpatient settings, including the neonatal intensive care unit (NICU) and pediatric intensive care unit (PICU). Additionally, Dr. Pusins is a Board Certified Lactation Consultant (IBCLC) and is able to provide breastfeeding support to both the infant and mother, allowing for a comprehensive approach to infant feeding and swallowing.

Tara Sheehan, Ph.D. is a Board Certified Behavior Analyst (BCBA) and clinical supervisor for the Challenging Behavior Clinic at the Unicorn Children’s Foundation Clinic at NSU’s Mailman Segal Center for Human Development. Due to her areas of educational training and clinical experience, Dr. Sheehan is skilled at selecting skill acquisition targets appropriate for an individual’s learning context, unique needs and developmental level.  As a Board Certified Behavior Analyst, she is experienced in developing behavior plans to both decrease challenging behavior and increase adaptive behavior.  Dr. Sheehan is experienced at staff and parent training including didactic training, modeling and coaching, and implements a training hierarchy ultimately designed to transfer treatment gains to families and fade out her support while providing children and their families with the highest quality of care. 

Dr. Sheehan earned her Doctor of Psychology (Ph.D.) with a specialization in Developmental Psychology from Florida International University.

Sohani Barrientos Psy.D. is a bilingual licensed psychologist at the Developmental Assessment Clinic at the Unicorn Children’s Foundation Clinic at NSU’s Mailman Segal Center for Human Development. Dr. Barrientos earned her Doctor of Psychology (Psy.D.) in Clinical Psychology from Nova Southeastern University’s College of Psychology. She completed her postdoctoral fellowship at Unicorn Children’s Foundation Clinic at NSU’s Mailman Segal Center for Human Development. Dr. Barrientos has extensive experience in the assessment and treatment of autism spectrum disorder, and working with individuals of diverse cultural backgrounds. Dr. Barrientos has expanded the services at the clinic to Spanish speaking families by guest speaking on local Spanish radio stations and presenting in the community. In addition, she has conducted international evaluations for clients residing in Mexico, Honduras, and Denmark.