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Published online by Cambridge University Press: 12 March 2026
This paper examines the phenomenon of ergativity and its relation to patterns of surface grammar and information flow in discourse. Corresponding to the grammatical pattern of ergativity (exemplified in the A vs. S/O distribution of verbal cross-referencing morphology in Sacapultec Maya) there is an isomorphic pattern of information flow: information distribution among argument positions in clauses of spoken discourse is not random, but grammatically skewed toward an ergative pattern. Arguments comprising new information appear preferentially in the S or O roles, but not in the A role—which leads to formulation of a Given A Constraint. Evidence from other languages suggests that the ergative patterning of discourse extends beyond the ergative type to encompass accusative languages as well. Given the linguistic consequences of a type-independent Preferred Argument Structure, it is argued that language-internal phenomena as fundamental as the structuring of grammatical relations can be shaped by forces arising out of discourse, viewed as the aggregate of instances of language use.
Earlier versions of this paper were presented at the West Coast Mayan Symposium, Santa Barbara, April 15, 1981; the American Anthropological Association, Los Angeles, December 4, 1981; the UCLA Linguistics Colloquium, February 12, 1982; the Berkeley Linguistics Society (monthly meeting), April 13, 1982; the Max Planck Institute for Psycholinguistics, Nijmegen, October 4, 1984; and Helsinki University, December 13, 1984. (An earlier brief paper—presenting, in outline, many of the key concepts of the present work—was circulated as Du Bois 1981a; cf. also Du Bois 1981b:285–6.) I wish to thank members of the various audiences for their many helpful and often challenging comments. I especially wish to thank Judith Aissen, Wallace Chafe, Jon Dayley, Mark Durie, Barbara Edmonson, Charles Fillmore, John Haiman, Paul Hopper, Ed Keenan, Tom Larsen, Marianne Mithun, Tony Naro, Johanna Nichols, Will Norman, Doris Payne, Janine Scancarelli, Michael Silverstein, Sandy Thompson, and Alan Timberlake for comments on earlier versions of this work. I also thank my students in my Winter 1984 UCLA proseminar, ‘Preferred clause structure in discourse and grammar’; through their questions and comments, often quite challenging, they have improved both my understanding and my exposition of several of the matters treated below. I thank Stephan Schuetze-Coburn and Marian Shapley for statistical advice. Any remaining failings are of course my responsibility.
Special thanks go to my Sacapultec assistants Manuel Lancerio, Petronila Gómez Alecio, and Jacinto Mutás, for help in gathering the Sacapultec materials; and to the many other individuals from Sacapulas who made this study possible. The field research reported here was partially supported by a series of grants from the Survey of California and Other Indian Languages during 1974–1979; additional research support was received during 1981–84 from the UCLA Academic Senate.