Preface -- 1. Grammars in the Psychology of Language: Three Problems -- 1.1. Language use, Linguistic Intuitions, and the Acquisition of Language -- 1.2. Primary Usage of Language and Linguistic Intuitions -- 1.3. Linguistic Intuitions and Language Acquisition -- 1.4. Language Acquisition and Primary Usage of Language -- 2. Grammars and Linguistic Intuitions -- 2.1. The Unreliability of Linguistic Intuitions -- 2.2. From Data to Model -- 2.3. The Judgment of Grammaticality: Absolute Judgment versus Judgment by Contrast -- 2.4. The Judgment of Syntactic Relatedness: A Few Models of Interpretation -- 2.5. Conceptual Factors in the Judgment Process -- Note to Section 2.1 -- 3. Grammars in Models of the Language User -- 3.1. Isomorphistic, Semi-Isomorphistic, and Non-isomorphistic Models -- 3.2. The Language User as a Finite Automaton -- 3.3. Non-regular Phrase Structure Models -- 3.4. Transformational Complexity and the Coding Hypothesis -- 3.5. Perceptual Strategies -- 3.6. Conceptual Models -- 3.7. Grammars and Models of the Language User -- 4. Grammars and Language Acquisition -- 4.1. Aspects of Language Acquisition -- 4.2. LAD, a General Inference Schema -- 4.3. Universals of Development from the Rationalistic and the Empiricist Points of View -- 4.4. Process Factors in Language Acquisition -- 4.5. Conceptual Factors in Language Acquisition -- Historical and Bibliographical Remarks -- Bibliography -- Author Index -- Subject Index.