Organism and Mechanism: A Critique of Mechanistic Thinking in Biology

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Organism and Mechanism: A Critique of Mechanistic Thinking in Biology

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Title: Organism and Mechanism: A Critique of Mechanistic Thinking in Biology
Author: Nicholson, Daniel James
Advisor: Moss, LennyDupré, John
Publisher: University of Exeter
Date Issued: 2010-09-29
Abstract: In this thesis I present a critical examination of the role played by mechanistic ideas in shaping our understanding of living systems. I draw on a combination of historical, philosophical, and scientific resources to uncover a number of problems which I take to result from the adoption of mechanistic thinking in biology. I provide an analysis of the historical development of the conflict between mechanistic and vitalistic conceptions of life since the seventeenth century, and I argue that the basic terms of this conflict remain central to current disputes over the nature of the organism as well as the question of how far the theories, concepts, and methods of physics, chemistry, and engineering can ultimately take us in the explanation of life. I offer a detailed critique of the machine conception of the organism, which constitutes the central unifying idea of mechanistic biology. I argue that this notion, despite its undeniable heuristic value, is fundamentally inadequate as a theory of the organism due to a number of basic differences between organisms and machines. Ultimately, I suggest that the neglected vitalistic tradition in biology actually possesses the best conceptual tools for coming to terms with the nature of living systems. I also undertake a philosophical analysis of the concept of mechanism in biology. I argue that the term ‘mechanism’ is actually an umbrella term for three distinct notions, which are unfortunately conflated in philosophical discussions. I explore the relation between mechanistic biology and the new philosophical interest in the concept of mechanism and I show that these two research programs have little to do with one another because each of them understands the concept of mechanism in a different way. Finally, I draw on the historical and philosophical foundations of cell theory to propose an epistemological perspective which enables the reductionistic explanation of the organism without having to give up the distinctive features of life in the process. In this way, I show this perspective to have significant advantages over the classic physicochemical reductionism of mechanistic biology.
Type: Thesis or dissertation
Keywords: philosophy of biologynature of lifeorganicismvitalismreductionismcell theory
Funders/Sponsor: Department of Sociology and Philosophy, University of Exeter.

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