Dr. Horsfall is an Assistant Clinical Professor of Psychiatry and Biobehavioral Sciences in the Neuropsychology-Medical Psychology service at UCLA. She earned her undergraduate degree in psychology from Yale University and her doctorate in clinical psychology-neuropsychology from Pacific Graduate School of Psychology. Dr. Horsfall also completed a 3-year postdoctoral fellowship in neuropsychology at UCLA. Dr. Horsfall is currently the primary neuropsychologist for the neuro-rehabilitation, neurosurgery, and epilepsy services at UCLA and has developed specialization in assessment of neurological disorders/syndromes including epilepsy, traumatic brain injury, vascular disorders, amnestic syndromes, and brain tumors. In addition, she is one of two clinicians at UCLA who currently conducts Intracarotid Sodium Amobarbital Procedures (Wada Tests) and intraoperative language mapping for the neurosurgery service. Dr. Horsfall is also the Co-Director of Clinical Services for the Medical Psychology Assessment Center (MPAC), where she is responsible for the training and supervision of all predoctoral interns and postdoctoral fellows in neuropsychological assessment.