Psychiatry Cognitive development and defence mechanism 6bf6ecd9 Term 'Catatonia' was used by A Karl kahlbaum B Adolf Meyer C Leo Kanner D Karen Horney High-Yield Explanation Contributor: Kahlbaum, Karl (1828-1899) Coined the Term: Catatonia, Symptom complex, Cyclothymia Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no.244