A meeting on brain-behavior relationships held at Caltech in September 1948 and attended by psychologists and what we now know as computer scientists, network modellers and neuroscientists (see photograph below). At the meeting, for example, John von Neumann (1903-1957), circled in red, presented his theory of automata and Karl S. Lashley (1890-1958), circled in blue, his famous paper on the serial ordering of behavior, which effectively dealt a body blow to behaviorism and stimulus-response theory more generally. The symposium, together with Dartmouth conference (1956) on artificial intelligence and the MIT symposium (1956) on information processing, can be seen as the inspiration essential building blocks for the so-called cognitive revolution and subsequent information-processing theories of human behavior