Cognition and Temporality: The Genesis of Historical Thought in Perception and Reasoning - Hardcoverby Mark E. Blum (Author) Cognition and Temporality argues that both verbal grammar and figural grammar have their cognitive basis in twelve characteristic forms of judgment, distributed among individuals in human populations throughout history. Author Biography Mark E. Blum has served in the Department of History at the University of Louisville since 1976 and has been a professor in the department for almost twenty years. He received his MA and PhD in