Dr. Laura McWhirter, an expert in functional cognitive disorder, discusses preliminary diagnostic criteria, internal inconsistency, epidemiology, clinical features, differential diagnosis, diagnostic pitfalls, etiology/mechanism, metacognition, subjective cognitive concerns, objective cognitive testing, performance validity, genetics, and pushback against FCD as a diagnosis. The discussion also explores challenges in finding employment, misdiagnosis, persistent symptoms, cognitive symptoms in various conditions, misattributing cognitive lapses, and challenges of interpreting cognitive test results in FCD.