Dr. Caroline Leaf is a communication pathologist, audiologist, clinical and research neuroscientist with a Masters and PhD in Communication Pathology and a BSc Logopaedics, specializing in psychoneurobiology and metacognitive neuropsychology. Since the early 1980s she has researched the mind-brain connection, the nature of mental health, and the formation of memory. She was one of the first in her field to study how the brain can change (neuroplasticity) with directed mind input.