Learning Objectives: On successful completion of this activity, participants should be able to (1) describe clinical features and therapeutic approaches in the evaluation and management of cancer-and chemotherapy-related cognitive impairment (CRCI), posttraumatic stress disorder (PTSD), and traumatic brain injury (TBI); (2) discuss the role of neuroimaging in contributing to understanding of relationships between clinical features of CRCI, PTSD, and TBI, with aspects of underlying regional cerebral function; and (3) identify which brain processes are most consistently shown to be affected in CRCI, PTSD, and TBI.