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Role Functions, Mechanisms, and Hierarchy

Published online by Cambridge University Press:  01 April 2022

Carl F. Craver*
Affiliation:
Department of Philosophy Florida International University
*
Send requests for reprints to the author, Department of Philosophy, Florida International University, 3000 Northeast 151 Street, North Miami, FL 33181–3000; craverc@fiu.edu.

Abstract

Many areas of science develop by discovering mechanisms and role functions. Cummins' (1975) analysis of role functions—according to which an item's role function is a capacity of that item that appears in an analytic explanation of the capacity of some containing system—captures one important sense of “function” in the biological sciences and elsewhere. Here I synthesize Cummins' account with recent work on mechanisms and causal/mechanical explanation. The synthesis produces an analysis of specifically mechanistic role functions, one that uses the characteristic active, spatial, temporal, and hierarchical organization of mechanisms to add precision and content to Cummins' original suggestion. This synthesis also shows why the discovery of role functions is a scientific achievement. Discovering a role function (i) contributes to the interlevel integration of multilevel mechanisms, and (ii) provides a unique, contextual variety of causal/mechanical explanation.

Type
Research Article
Copyright
Copyright © 2001 by the Philosophy of Science Association

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Footnotes

Thanks to Ron Amundson, Robert Cummins, Lindley Darden, Michael Devitt, Stuart Glennan, Peter Machamer, Karen Neander, Greg Morgan, Pierre Poirier, Gualtiero Piccinini, Wesley Salmon, Ken Schaffner, Steven Small, Wendy Stuart, Nathan Urban, Marcel Weber, William Wimsatt, and Kirsten Wood for comments on earlier drafts of this much reworked paper. Thanks also to the students in Darden's graduate seminar (Fall 1998) in the Philosophy of Biology for useful feedback on multiple drafts. Many of these friends and colleagues will not recognize this as the paper that they so generously read. Any mistakes are mine and mine alone. This work was supported by the National Science Foundation under grant number SBR-9817942. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect those of the National Science Foundation.

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