Fruits of Consensus: Continued Improvement in the Analysis of Verbal Behavior

This article discusses three contributions to the special issue from the Symbolic Processes cluster in the second Theory and Philosophy conference. Each of the articles advances a naturalistic, learning-based account of complex linguistic and social phenomena. The article by Barnes-Holmes and colleagues suggests a refinement of relational frame theory (RFT) informed by findings emerging from research conducted with the IRAP protocol for the past decade. Degli-Espinosa offers a behavioral reinterpretation of the development of theory of mind with implications for understanding its absence in certain populations and the potential for remediation where necessary. Palmer presents a thorough-going behavioral account of word order in novel utterances and, by way of example, offers a blueprint for the analysis of syntactic organization in spoken languages more generally. This paper discusses the articles' conceptual innovations, empirical grounding, and the implications of the analyses for future research. The discussion ends with an appreciation of the shared philosophical and methodological commitments reflected in these articles.