Kaplan (born January 3, 1952) is an American biology researcher, medical professor, and clinical physician.
A pioneer of neurogenesis research, his work refuted the classic idea that no new nerve cells are born in the adult mammalian brain.
His research using light and electron microscopy suggested that neurogenesis occurs in the brain of adult mammals, but his findings were rejected by the scientific community at the time in a field that continues to be contentious.
Doctor Kaplan has recently begun a YouTube channel which offers patient interviews and insights to brain plasticity; kaplan brain health ,YouTube .