Schönefeld, Doris (2001) Where Lexicon and Syntax Meet. Mouton de Gruyter, vi+332pp, hardback ISBN: 3-11-017048-5, Trends in Linguistics 135.
David Parkinson, Natural Language Group, Microsoft Corporation.
OVERVIEW No serious theory of the structure of the lexicon can afford to do without at least some theory of syntax, just as no serious theory of syntax can afford to ignore the lexicon. This is for the simple reason that the lexicon serves the function in most linguistic theories of providing the raw materials from which all syntactic and semantic structure is formed. Once one begins to investigate the goals, claims, and theoretical devices of competing theories, it becomes obvious that there are many ways in which the division of labor between the lexicon and the syntax can be articulated. And once one's scope is broadened to take in psycholinguistic data, empirical questions about how lexical information is deployed in syntactic structure in real-time linguistic events can be used to inform an evaluation of the claims of competing theories concerning the type of information stored lexically, and how this information is embedded into syntactic structure.
In Where Lexicon and Syntax Meet (henceforth WLSM), Schönefeld aims at nothing less than a comprehensive evaluation of a wide range of theories of syntax and the lexicon. Her aim is to formulate a competitive analysis of these different theories against data from psycholinguistic findings, of which she herself provides some, in the form of a corpus analysis of speech errors and overlaps, as well as an experiment to evaluate priming effects of collocational and idiomatic material. Along the way, she provides a useful overview of most of the preoccupations of contemporary theories of the lexicon and of syntax. The likeliest audience for this book is a formally-inclined syntactician or lexicographer eager to know more about theories of language processing, and how these theories might help constrain a formal theory; or a psycholinguist looking for a good overview of formal theories of the lexicon and syntax. WLSM is structured as follows:
Chapter 1: Introduction In the brief introduction, Schönefeld sets out the overall aim of WLSM: to identify the best theory of the interface between the lexicon and syntactic components, where "best" is arrived at primarily via evaluation against psycholinguistic data. In particular, she sets out the two main questions (WLSM, p.3): 1. In what way are the selected linguistic models compatible with psycholinguistic assumptions about the lexicon-syntax interaction in language use? 2. How can the performance data I concentrated on, namely self-repairs, overlaps and lexical patterns, be explained by the linguistic models under analysis?
Chapter 2: Grounding and definitions The aim of Chapter 2 is to provide the reader with Schönefeld's working definitions of the key terms "lexicon" (or "mental lexicon") and "syntax". She provides the following as a definition of syntax: "Syntax describes the rules by which words combine in a verbal utterance, what their contribution to the utterance meaning is, and the means by which the intended combinations are signaled or expressed." (WLSM, p. 13) It is unfortunate that Schönefeld's assumptions about the lexicon are not spelled out so explicitly in this chapter; after a brief survey of the sorts of things that the lexicon is supposed to contain, and the kinds of functions it is supposed to perform, she points forward to Chapter 3, rather than take a strong stance on her perception of what is intended by the term "(mental) lexicon".
Chapter 3: Theories of language processing This chapter consists of a lengthy discussion of language processing from the standpoints of comprehension and production, naturally with an eye to further refining our understanding of the interface between the two domains of linguistic behavior. Among the issues which drive the discussion are: a. Temporal structure of linguistic processing; i.e., whether serial vs. parallel; b. The nature of the flow of information; i.e., whether and to what extent the lexicon and syntactic processing subsystems are modular (insulated from one another except at tight interfaces) vs. intercooperative (relatively open interfaces); c. Heterogeneity of processing; i.e., whether and to what extent the same processing is used in both comprehension and production; d. Empirical support; i.e., how evidence from psycholinguistics can be used to distinguish among the various theoretical claims made about the subsystems supporting linguistic comprehension and production.
The high-level structure of this chapter being a division between production models and comprehension models, Schönefeld ends each half of the chapter with a set of assumptions that she takes away from the survey of competing accounts: there are 9 assumptions regarding production & 10 regarding comprehension. Overall Schönefeld's bias is towards a lexicon-dominated interface, where information from lexical items takes precedence over syntactic principles in construction of linguistic structure in real time. Because this discussion is entirely drawn from psycholinguistic experimentation, effects of frequency, context, priming, and so on, are key contributors to the lexical-syntactic interface that Schönefeld is arguing for; any reader who is unable or unwilling to put data from language use ahead of purely formal argumentation might find this chapter tough going. Nonetheless, it is the true theoretical center of the monograph.
Chapter 4: Linguistic models under scrutiny Chapter 4 is the longest chapter in the WLSM, but I find it to be less critical to Schönefeld's argumentation than the preceding chapter. In it, Schönefeld surveys a reasonably broad range of linguistic theories in order to discuss how they conceptualize the lexicon, syntax, and the interface between the two. The high-level structure of the survey is a three-way split between functional, generative, and cognitive approaches. The two main functionally-oriented theories under consideration are Dik's functional linguistics and Halliday's systemic linguistics. Generative approaches are mainly represented by Chomskyan generative linguistics (Government & Binding; Principles & Parameters), Lexical Functional Grammar, Diehl's Lexical-Generative Grammar, and Head-Driven Phrase Structure Grammar. Finally, cognitive approaches are represented by Deane's cognitive syntax, Goldberg's Construction Grammar, and Langacker's Cognitive Grammar. Schönefeld reaches the tentative conclusion that Langacker's theory provides the most natural theoretical framework within which to account for the sorts of performance facts discussed in Chapter 3. Tellingly, this is the case to no small extent because of the theoretical commitment of Langacker's schema-based approach to a rejection of arbitrary boundaries between lexicon and syntax. Within the CG framework there are fixed schemas acquired through automatization; depending on the size and type of the units entering in some schema, we may call it a morpheme, collocation, syntactic idiom, construction, word order generalization, or any number of other theoretical entity. From this it follows that the commonalities between "lexicon" and "syntax" are susceptible of being much more numerous than in many other theories under discussion, in which a more or less rigorous -- if artificial - division of labor is maintained between the lexicon as warehouse of raw material and syntax as construction methods.
Chapter 5: Performance data In the first of two chapters in which Schönefeld interprets the theoretical background in light of psycholinguistic information, she uses a naturalistic corpus-based approach, examining three types of data for clues to the processes underlying them: reformulations/self-repairs in speech, overlaps in conversation, and lexical co-occurrences. The general methodology is to use these data as indicators of the extent to which lexical choices are determined or constrained by syntactic structure (and therefore must be accommodated to syntax when a disruption of one kind or another takes place), or conversely of the extent to which syntactic structure is determined or constrained by lexical choices. Although the data admit a range of interpretations, Schönefeld argues throughout that they suggest a lexicon-syntax interface which is more strongly constrained by lexical choices, and that syntax is more often accommodated to the demands of some lexical items than vice versa. Furthermore, she adduces some evidence suggesting that the boundary between lexicon and syntax is somewhat porous, since some linguistic units with syntactic characteristics (collocations, co-occurrences, idiomatic constructions) appear to pattern in some respects with common-garden lexical units like simple words.
Chapter 6: In the psycholinguist's laboratory In Chapter 6, Schönefeld presents the results of an experiment designed to further investigate the special characteristics of collocations under controlled circumstances. More specifically, her experiment uses a lexical decision task to measure the effect of repetition of collocations and non-collocational but syntactically comparable phrases. The result of this experiment suggests that collocations such as "seal X's fate" are processed differently from syntactically productive phrases like "drink X's milk". Here, the discussion of results is quite interesting and provocative, and Schönefeld rightly indicates the need for further experimentation to answer many questions left unanswered. Again, the results are used to argue for a lexically dominated interface, with frequency and co-occurrence information having a much greater importance than in many standard theories, in which these effects are relegated to "mere performance".
Chapter 7: The finale In this final chapter, Schönefeld ties together all previous discussion from the psycholinguistic literature, from linguistic theory, and from her own investigation and experimentation, to reach the conclusion that Langacker's theory of Cognitive Grammar is the most psychologically plausible linguistic theory of the interface between lexicon and syntax.
DISCUSSION Schönefeld has undertaken a notoriously difficult task: that of using psycholinguistic data as a way of putting various linguistic theories to the test. At least in North American linguistic circles, there is a long-standing reluctance to allow one's theory to become too beholden to facts from the laboratory, or (worse yet) from some corpus of linguistic behavior. So in this sense, Schönefeld may find herself preaching to the choir: her likeliest audience is to be the psycholinguist looking for some linguistic theory to use as a framework to which one's experiments can make a contribution, or the adherent of Cognitive Grammar or some closely-related linguistic theory, looking for some empirical justification of her/his theoretical predilections. And there is simply not enough strong and compelling data or argumentation in WLSM to accomplish the greater task of compelling the generativist or theoretically-disinclined psycholinguistic to take notice. It is to be hoped that Schönefeld and others will pursue the line of experimental investigation that she opens up. Nonetheless, Schönefeld is to be applauded for making a brave effort where so many have failed, and for being unafraid to build bridges between formal linguistic theory and psycholinguistics. Anyone who is interested in the leaky areas between lexicon and syntax will find something of interest in WLSM.
ABOUT THE REVIEWER David Parkinson is a computational syntactician in the Natural Language Group at the Microsoft Corporation.
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