Understanding Invention as a Cognitive Process: The Case of Thomas Edison and Early Motion Pictures, 1888-91

Abstract

This paper describes an interpretive framework for understanding the cognitive or mental processes of inventors, and applies this framework to narrating how Thomas Edison developed the kinetoscope, or motion picture. A review of recent developments in the history of technology and cognitive science suggests the need for better conceptual categories for understanding and comparing how inventors approach problems. We show how Edison created a mental model of the kinetoscope from his existing phonograph, and how his assistant William K. L. Dickson (who is often credited with inventing the kinetoscope) developed his own alternative mental model. We further discuss how Edison utilized building blocks or mechanical representations from previous inventions, and what strategies or heuristics he employed. In particular, we examine how Edison divided the project between himself and Dickson. The overall result of applying our framework to this case is to provide a clearer picture of the roles played by Edison and Dickson in this invention. The paper closes with a discussion on the potential relationship between cognitive and sociological approaches to technological innovation.

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