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Causal Circuit Explanations of Behavior: Are Necessity and Sufficiency Necessary and Sufficient?

  • Alex Gomez-Marin
Chapter

Abstract

In the current advent of technological innovation allowing for precise neural manipulations and copious data collection, it is hardly questioned that the explanation of behavioral processes is to be chiefly found in neural circuits. Such belief, rooted in the exhausted dualism of cause and effect, is enacted by a methodology that promotes “necessity and sufficiency” claims as the goal-standard in neuroscience, thus instructing young students on what shall reckon as explanation. Here I wish to deconstruct and explicate the difference between what is done, what is said, and what is meant by such causal circuit explanations of behavior. Well-known to most philosophers, yet ignored or at least hardly ever made explicit by neuroscientists, the original grand claim of “understanding the brain” is imperceptibly substituted by the methodologically sophisticated task of empirically establishing counterfactual dependencies. But for the twenty-first century neuroscientist, after so much pride, this is really an excess of humility. I argue that to upgrade intervention to explanation is prone to logical fallacies, interpretational leaps and carries a weak explanatory force, thus settling and maintaining low standards for intelligibility in neuroscience. To claim that behavior is explained by a “necessary and sufficient” neural circuit is, at best, misleading. In that, my critique (rather than criticism) is indeed mainly negative. Positively, I briefly suggest some available alternatives for conceptual progress, such as adopting circular causality (rather than lineal causality in the flavor of top-down reductionism), searching for principles of behavior (rather than taking an arbitrary definition of behavior and rushing to dissect its “underlying” neural mechanisms), and embracing process philosophy (rather than substance-mechanistic ontologies). Overall, if the goal of neuroscience is to understand the relation between brain and behavior then, in addition to excruciating neural studies (one pillar), we will need a strong theory of behavior (the other pillar) and a solid foundation to establish their relation (the bridge).

Notes

Acknowledgements

I thank Björn Brembs, André Brown, Adam Calhoun, Udi Fonio, Asif Ghazanfar, José Gomes Pinto, Gordon Globus, Eyal Gruntman, Rod Hemsell, Johannes Jaeger, Konrad Kording, Gonçalo Lopes, Adam Matic, Laura Navío, Joana Rigato, Troy Shirangi, and Ibrahim Tastekin, for feedback. My views need not coincide with theirs.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Behavior of Organisms LaboratoryInstituto de Neurociencias CSIC-UMHAlicanteSpain

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