Explanation in Two Dimensions: Diagrams and Biological Explanation
Molecular biologists and biochemists often use diagrams to present hypotheses. Analysis of diagrams shows that their content can be expressed with linguistic representations. Why do biologists use visual representations instead? One reason is simple comprehensibility: some diagrams present information which is readily understood from the diagram format, but which would not be comprehensible if the same information was expressed linguistically. But often diagrams are used even when concise, comprehensible linguistic alternatives are available. I explain this phenomenon by showing why diagrammatic representation is especially well suited for a particular kind of explanation common in molecular biology and biochemistry: namely, functional analysis, in which a capacity of the system is explained in terms of capacities of its component parts.
KeywordsCummins Diagram Explanation Functional analysis Linguistic Symbol Visual representation
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- Bechtel, William, Richardson, R. 1992
Emergent phenomena and complex systemsEmergence or Reduction? Essays on the prospects of nonreductive physicalismWalter de Gruyter VerlagNew YorkGoogle Scholar
- Bechtel, William., Richardson, R. 1993Discovering Complexity: Decomposition and Localization as Strategies in Scientific ResearchPrinceton University PressPrincetonGoogle Scholar
- Cummins, Robert 1975Functional AnalysisJ. Phil.72741764Google Scholar
- Goodman, Nelson 1976Languages of Art: An Approach to a Theory of SymbolsHackett Publishing CompanyIndianaGoogle Scholar
- Laura Perini 2002. Visual representations and scientific knowledge. Ph.D. Dissertation.Google Scholar
- Salmon, Wesley 1984Scientific Explanation and the Causal Structure of the WorldPrinceton University PressPrincetonGoogle Scholar
- Fraassen, Bas 1980The Scientific ImageOxford University PressNew YorkGoogle Scholar