Akhtar, N., Carpenter, M., & Tomasello, M. (1996). The role of discourse novelty in early word learning. Child Development, 62, 635-645.

Allen, R., & Gardner, B. (1969). Teaching sign language to a chimpanzee. Science, 165, 664-672.

Anglin, J. M. (Ed.). (1977). Word, object, and conceptual development. New York: Norton.

Aslin, R., Jusczyk, P., & Pisoni, D. (1997). Speech and auditory processing during infancy: Constraints on and precursors to language. In D. Kuhn & R. Siegler (Eds.), Handbook of child psychology. Volume 2, . New York: Wiley.

Atkinson, K., MacWhinney, B., & Stoel, C. (1970). An experiment on the recognition of babbling. Papers and Reports on Child Language Development, 5, 1-8.

Atkinson, M. (1992). Children's syntax. Oxford: Blackwells.

Baker, C. L. (1979). Syntactic theory and the projection problem. Linguistic Inquiry, 10, 533-581.

Baker, C. L., & McCarthy, J. J. (Eds.). (1981). The logical problem of language acquisition. Cambridge: MIT Press.

Baldwin, D. A. (1991). Infants' contribution to the achievement of joint reference. Child Development, 62, 875-890.

Baldwin, D. A., & Markman, E. M. (1989). Establishing word-object relations: A first step. Child Development, 60, 381-398.

Barrett, M. (1995). Early lexical development. In P. Fletcher & B. MacWhinney (Eds.), Handbook of Child Language, . Oxford: Basil Blackwell.

Bates, E., Bretherton, I., & Snyder, L. (1988). From first words to grammar: Individual differences and dissociable mechanisms. Cambridge, MA: Cambridge University Press.

Bates, E., & Carnevale, G. (1993). New directions in research on language development. Developmental Review, 13, 436-470.

Bates, E., & MacWhinney, B. (1982). Functionalist approaches to grammar. In E. Wanner & L. Gleitman (Eds.), Language acquisition: The state of the art, (pp. 173-218). New York: Cambridge University Press.

Bechtel, W., & Abrahamsen, A. (1991). Connectionism and the mind: An introduction to parallel processing in networks. Cambridge, MA: Basil Blackwell.

Bickerton, D. (1990). Language and species. Chicago: Chicago University Press.

Bijeljac, B., R., Bertoncini, J., & Mehler, J. (1993). How do four-day-old infants categorize multisyllabic utterances? Developmental Psychology, 29, 711-721.

Bloom, L. (1970). Language development: Form and function in emerging grammars. Cambridge, MA: MIT Press.

Bloom, L. (1993). The transition from infancy to language: Acquiring the power of expression. Cambridge: Cambridge University Press.

Bloom, L., Tinker, E., & Margulis, C. (1993). The words children learn: Evidence against a noun bias in early vocabularies. Cognitive Psychology, 8, 431-450.

Bloom, P. (1994). Overview: Controversies in language acquisition. In P. Bloom (Ed.), Language acquisition: Core readings, (pp. 5-48). Cambridge, MA: MIT Press.

Bowerman, M. (1982). Reorganizational processes in lexical and syntactic development. In E. Wanner & L. Gleitman (Eds.), Language acquisition: The state of the art, (pp. 319346). New York: Cambridge University Press.

Bowerman, M. (1988). The "no negative evidence" problem. In J. Hawkins (Ed.), Explaining language universals, (pp. 73-104). London: Blackwell.

Boysson-Bardies, B., & Vihman, M. M. (1991). Adaption to language: Evidence from babbling and first words in four languages. Language, 67, 297-320.

Brown, R. (1957). Linguistic determinism and the part of speech. Journal of Abnormal and Social Psychology, 55, 1-5.

Brown, R., & Hanlon, C. (1970). Derivational complexity and order of acquisition in child speech. In J. R. Hayes (Ed.), Cognition and the development of language, (pp. 11-54). New York: Wiley.

Burgess, N., & Hitch, G. (1992). Toward a network model of the articulatory loop. Journal of Memory and Language, 31, 429-460.

Bybee, J. (in press). Regular morphology and the lexicon. Cognition.

Bybee, J. L., & Slobin, D. I. (1982). Rules and schemas in the development and use of the English past. Language, 58, 265-289.

Carey, S. (1978). The child as word learner. In M. Halle, J. Bresnan, & G. Miller (Eds.), Linguistic theory and psychological reality, (pp. 264-293). Cambridge, MA: MIT Press.

Choi, S., & Bowerman, M. (1991). Learning to express motion events in English and Korean: The influence of language-specific lexicalization patterns. Cognition, 41, 83121.

Chomsky, N. (1965). Aspects of the theory of syntax. Cambridge, MA: MIT Press.

Chomsky, N. (1980). Rules and Representations. New York: Columbia University Press.

Clark, E. (1987). The Principle of Contrast: A constraint on language acquisition. In B. MacWhinney (Ed.), Mechanisms of Language Acquisition, (pp. 1-34). Hillsdale, NJ: Lawrence Erlbaum Associates.

Clark, E., Carpenter, K., & Deutsch, W. (1995). Reference states and reversals: Undoing actions with verbs. Journal of Child Language, 22, 633-652.

Coltheart, M., Curtis, B., Atkins, P., & Haller, M. (1993). Models of reading aloud: Dualroute and parallel distributed processing approaches. Psychological Review, 100, 589608.

Corrigan, R. (1978). Language development as related to stage 6 object permanence development. Journal of Child Language, 5, 173-189.

Corrigan, R. (1979). Cognitive correlates of language: Differential criteria yield differential results. Child Development, 50, 617-631.

Cottrell, G., & Plunkett, K. (1991). Learning the past tense in a recurrent network: Acquiring the mapping from meaning to sounds. In K. Hammond & D. Gentner (Eds.), Proceedings of the Thirteenth Annual Conference of the Cognitive Science Society, (pp. 109-115). Hillsdale, NJ: Lawrence Erlbaum.

Davis, K. (1947). Final note on a case of extreme social isolation. American Journal of Sociology, 52, 432-437.

de Saussure, F. (1966). Course in general linguistics. New York: McGraw-Hill.

DeCasper, A. J., & Fifer, W. P. (1980). Of human bonding: Newborns prefer their mothers' voices. Science, 208, 1174-1176.

Dromi, E. (1987). Early lexical development. New York: Cambridge University Press.

Dromi, E. (1997). Early lexical development. In M. Barrett (Ed.), The development of language, . London: UCL Press.

Eimas, P. D., Siqueland, E. R., Jusczyk, P., & Vigorito, J. (1971). Speech perception in infants. Science, 171, 303-306.

Elman, J. (1993). Incremental learning, or the importance of starting small. Cognition, 48, 71-99.

Fausett, L. (1994). Fundamentals of neural networks. Englewood Cliffs, NJ: Prentice Hall.

Fodor, J. (1983). The modularity of mind: An essay on faculty psychology. Cambridge, Mass.: M. I. T. Press.

Fodor, J., & Pylyshyn, Z. (1988). Connectionism and cognitive architecture: A critical analysis. Cognition, 28, 3-71.

Gathercole, V., & Baddeley, A. (1993). Working memory and language. Hillsdale, NJ: Lawrence Erlbaum Associates.

Gentner, D. (1982). Why nouns are learned before verbs: Linguistic relativity versus natural partitioning. In S. Kuczaj (Ed.), Language development: Language, culture, and cognition, (pp. 301-334). Hillsdale, NJ: Lawrence Erlbaum.

Gleitman, L. (1990). The structural sources of verb meanings. Language Acquisition, 1, 355.

Gleitman, L. R., Newport, E. L., & Gleitman, H. (1984). The current status of the motherese hypothesis. Journal of Child Language, 11, 43-79.

Goldberg, A. (1995). Constructions. Chicago: University of Chicago Press.

Golinkoff, R., Hirsh-Pasek, K., Cauley, K., & Gordon, L. (1987). The eyes have it: lexical and syntactic comprehension in a new paradigm. Journal of Child Language, 14, 23-46.

Golinkoff, R. M., Mervis, C. B., & Hirsh-Pasek, K. (1994). Early object labels: The case for a developmental lexical principles framework. Journal of Child Language, 21, 125155.

Gopnik, A., & Choi, S. (1990). Do linguistic differences lead to cognitive differences? A crosslinguistic study of semantic and cognitive development. First Language, 10, 199215.

Gopnik, A., & Meltzoff, A. (1987). The development of categorization in the second year and its relation to the other cognitive and linguistic developments. Child Development, 58, 1523-1531.

Gopnik, A., & Meltzoff, A. N. (1986). Relations between semantic and cognitive development in the one-word stage: The Specificity Hypothesis. Child Development, 57, 1040-1053.

Gopnik, M. (1990). Feature blindness: A case study. Language Acquisition, 1, 139-164.

Grossberg, S. (1978). A theory of human memory: Self-organization and performance of sensory-motor codes, maps, and plans. Progress in Theoretical Biology, 5, 233-374.

Grossberg, S. (1987). Competitive learning: From interactive activation to adaptive resonance. Cognitive Science, 11, 23-63.

Gupta, P., & MacWhinney, B. (1992). Integrating category acquisition with inflectional marking: A model of the German nominal system, Proceedings of the Fourteenth Annual Conference of the Cognitive Science Society, (pp. 253-258). Hillsdale, NJ: Lawrence Erlbaum Associates.

Gupta, P., & MacWhinney, B. (1997). Vocabulary acquisition and verbal short-term memory: Computational and neural bases. Brain and Language, 59, 267-333.

Hall, D., Waxman, S., & Hurwitz, W. (1993). How twoand four-year-old children interpret adjectives and count nouns. Child Development, 64, 1651-1664.

Harris, C. (1990). Connectionism and cognitive linguistics. Connection Science, 2, 7-33.

Harris, C. L. (1994). Back-propagation representations for the rule-analogy continuum. In J. Barnden & K. Holyoak (Eds.), Analogical connections, (pp. 282-326). Norwood, NJ: Ablex.

Harris, M., Barrett, M. D., Jones, D., & Brookers, S. (1988). Linguistic input and early word meaning. Journal of Child Language, 15, 77-94.

Hebb, D. (1949). The organization of behavior. New York: Wiley.

Houghton, G. (1990). The problem of serial order: A neural network model of sequence learning and recall. In R. Dale, C. Mellish, & M. Zock (Eds.), Current research in natural language generation, (pp. 287-319). London: Academic.

Hunt, E. (1962). Concept learning: an information processing approach. New York: Wiley.

Huttenlocher, J. (1974). The origins of language comprehension. In R. Solso (Ed.), Theories in cognitive psychology: The Loyola symposium, (pp. 331-388). Potomac, Maryland: Lawrence Erlbaum.

Hyams, N. (1995). Nondiscreteness and variation in child language: Implications for Principle and Parameter modesl of language development. In Y. Levy (Ed.), Other children, other languages, (pp. 11-40). Hillsdale, NJ: Lawrence Erlbaum.

Hyams, N., & Wexler, K. (1993). On the grammatical basis of null subjects in child language. Linguistic Inquiry, 24(3), 421-459.

Jaeger, J. J., Lockwood, A. H., Kemmerer, D. L., Van Valin, R. D., & Murphy, B. W. (1996). A positron emission tomographic study of regular and irregular verb morphology in English. Language, 72, 451-497.

Jakobson, R. (1968). Child language, aphasia and phonological universals. The Hague: Mouton.

Jusczyk, P., & Aslin, R. (1995). Infants' detection of the sound patterns of words in fluent speech. Cognitive Psychology, 29, 1-23.

Jusczyk, P. W., Jusczyk, A. M., Kennedy, L. J., Schomberg, T., & Koenig, N. (1995). Young infants' retention of information about bisyllabic utterances. Journal of Experimental Psychology: Human Perception and Performance, 21, 822-836.

Kandel, E. R., & Hawkins, R. D. (1992). The biological basis of learning and individuality. Scientific American, 266, 40-53.

Kanerva, P. (1993). Sparse distributed memory and related models. In M. Hassoun (Ed.), Associative neural memories: Theory and implementation, . New York: Oxford University Press.

Katz, N., Baker, E., & Macnamara, J. (1974). What's in a name? A study of how children learn common and proper names. Child Development, 45, 469-473.

Kawamoto, A. (1994). One system or two to handle regulars and exceptions: How timecourse of processing can inform this debate. In S. D. Lima, R. L. Corrigan, & G. K. Iverson (Eds.), The reality of linguistic rules, (pp. 389-416). Amsterdam: John Benjamins.

Kenyeres, E. (1926). A gyermek elsö szavai es a szófajók föllépése. Budapest: Kisdednevelés.

Kohonen, T. (1982). Self-organized formation of topologically correct feature maps. Biological Cybernetics, 43, 59-69.

Köpcke, K.-M. (1994). Funktionale Untersuchungen zur deutschen Nominalund Verbalmorphologie. Linguistiche Arbeiten, 319, 81-95.

Köpcke, K. M., & Zubin, D. A. (1983). Die kognitive Organisation der Genuszuweisung zu den einsilbigen Nomen der deutschen Gegenwartssprache. Zeitschrift für germanistische Linguistik, 11, 166-182.

Köpcke, K. M., & Zubin, D. A. (1984). Sechs Prinzipien fur die Genuszuweisung im Deutschen: ein Beitrag zur natürlichen Klassifikation. Linguistische Berichte, 93, 26-50.

Kuhl, P. K. (1991). Human adults and human infants show a "perceptual magnet effect" for the prototypes of speech categories, monkeys do not. Perception and Psychophysics, 50, 93-107.

Kuhl, P. K., & Miller, J. D. (1975). Speech perception by the chinchilla: Voiced-voiceless distinction in alveolar plosive consonsants. Science, 190, 69-72.

Kuhl, P. K., & Miller, J. D. (1978). Speech perception by the chinchilla: Identification functions for synthetic VOT stimuli. Journal of the Acoustical Society of America, 63, 905-917.

Kuhl, P. K., & Padden, D. M. (1982). Enhanced discriminability at the phonetic boundaries for the voicing feature in macaques. Perception and Psychophysics, 32, 542-550.

Kuhl, P. K., & Padden, D. M. (1983). Enhanced discriminability at the phonetic boundaries for the voicing feature in macaques. Journal of the Acoustical Society of America, 73, 1003-1010.

Lachter, J., & Bever, T. (1988). The relation between linguistic structure and associative theories of language learning: A constructive critique of some connectionist learning models. Cognition, 28, 195-247.

Lakoff, G. (1987). Women, fire, and dangerous things. Chicago: Chicago University Press.

Landau, B., Smith, L., & Jones, S. (1992). Syntactic context and the shape bias in children's and adults' lexical learning. Journal of Memory and Language, 31, 807-825.

Levitt, A. G., Utman, J., & Aydelott, J. (1993). From babbling towards the sound systems of English and French: A longitudinal two-case study. Journal of Child Language, 19, 1949.

Lewis, M. M. (1936). Infant speech: A study of the beginnings of language. New York: Harcourt, Brace and Co.

Li, P., & MacWhinney, B. (1996). Cryptotype, overgeneralization, and competition: A connectionist model of the learning of English reversive prefixes. Connection Science, 8, 3-30.

Ling, C., & Marinov, M. (1993). Answering the connectionist challenge. Cognition, 49, 267-290.

MacWhinney, B. (1978). The acquisition of morphophonology. Monographs of the Society for Research in Child Development, 43, Whole no. 1, pp. 1-123.

MacWhinney, B. (1982). Basic syntactic processes. In S. Kuczaj (Ed.), Language acquisition: vol 1. Syntax and semantics, (pp. 73-136). Hillsdale, NJ: Lawrence Erlbaum.

MacWhinney, B. (1984). Where do categories come from? In C. Sophian (Ed.), Child categorization, (pp. 407-418). Hillsdale, N.J.: Lawrence Erlbaum.

MacWhinney, B. (1988). Competition and teachability. In R. Schiefelbusch & M. Rice (Eds.), The teachability of language, (pp. 63-104). New York: Cambridge University Press.

MacWhinney, B. (1989). Competition and lexical categorization. In R. Corrigan, F. Eckman, & M. Noonan (Eds.), Linguistic categorization, (pp. 195-242). New York: Benjamins.

MacWhinney, B. (1993a). Connections and symbols: Closing the gap. Cognition, 49, 291296.

MacWhinney, B. (1993b). The (il)logical problem of language acquisition, Proceedings of the Fifteenth Annual Conference of the Cognitive Science Society, (pp. 61-70). Hillsdale, NJ: Lawrence Erlbaum Associates.

MacWhinney, B. (1997). Lexical connectionism. In P. Broeder & J. Murre (Eds.), Models of language acquisition: Inductive and deductive approaches, . Cambridge, MA: MIT Press.

MacWhinney, B., & Bates, E. (Eds.). (1989). The crosslinguistic study of sentence processing. New York: Cambridge University Press.

MacWhinney, B., & Leinbach, J. (1991). Implementations are not conceptualizations: Revising the verb learning model. Cognition, 29, 121-157.

MacWhinney, B. J., Leinbach, J., Taraban, R., & McDonald, J. L. (1989). Language learning: Cues or rules? Journal of Memory and Language, 28, 255-277.

Mandel, D. R., Jusczyk, P. W., & Kemler Nelson, D. G. (1994). Does sentence prosody help infants to organize and remember speech information? Cognition, 53, 155-180.

Maratsos, M., & Chalkley, M. (1980). The internal language of children's syntax: The ontogenesis and representation of syntactic categories. In K. Nelson (Ed.), Children's language: Volume 2, (pp. 127-214). New York: Gardner.

Marcus, G., Ullman, M., Pinker, S., Hollander, M., Rosen, T., & Xu, F. (1992). Overregularization in language acquisition. Monographs of the Society for Research in Child Development, 57(4), 1-182.

Markman, E. (1989). Categorization and naming in children: Problems of induction. Cambrdige, MA: MIT Press.

Marler, P. (1991). Song-learning behavior: the interface with neuroethology. Trends in Neuroscience, 14, 199-206.

Merriman, W. E., & Stevenson, C. M. (1997). Restricting a familiar name in response to learning a new one: Evidence for the mutual exclusivity bias in young 2-year-olds. Child Development, 68, 211-258.

Mervis, C. (1984). Early lexical development: The contributions of mother and child. In C. Sophian (Ed.), Origins of cognitive skills, (pp. 339-370). Hillsdale, N.J.: Lawrence Erlbaum.

Mervis, C., & Bertrand, J. (1994). Acquisition of the novel name-nameless category (NC3) principle. Child Development, 65, 1646-1662.

Mervis, C., & Bertrand, J. (1995). Early lexical acquisition and the vocabulary spurt: a response to Goldfield and Reznick. Journal of Child Language, 22, 461-468.

Miikkulainen, R. (1990). A distributed feature map model of the lexicon, Proceedings of the 12th Annual Conference of the Cognitive Science Society, . Hillsdale, NJ: Lawrence Erlbaum Associates.

Miikkulainen, R., & Dyer, M. (1991). Natural language processing with modular neural networks and distributed lexicon. Cognitive Science, 15, 343-399.

Moon, C., Cooper, R. P., & Fifer, W. P. (1993). Two-day infants prefer their native language. Infant Behavior and Development, 16, 495-500.

Morgan, J., & Travis, L. (1989). Limits on negative information in language input. Journal of Child Language, 16, 531-552.

Mugdan, J. (1977). Flexionsmorphologie und Psycholinguistik. Tübingen: Gunter Narr.

Naigles, L. G., & Gelman, S. A. (1995). Overextensions in comprehension and production revisited: Preferential looking in a study of dog, cat, and cow. Journal of Child Language, 22, 19-46.

Ninio, A., & Snow, C. (1988). Language acquisition through language use: The functional sources of children's early utterances. In Y. Levy, I. Schlesinger, & M. Braine (Eds.), Categories and processes in language acquisition, (pp. 11-30). Hillsdale, NJ: Lawrence Erlbaum.

Piaget, J. (1954). The construction of reality in the child. New York: Basic Books.

Pinker, S. (1984). Language learnability and language development. Cambridge, Mass: Harvard University Press.

Pinker, S. (1989). Learnability and cognition: the acquisition of argument structure. Cambridge: MIT Press.

Pinker, S. (1991). Rules of Language. Science, 253, 530-535.

Polka, L., & Werker, J. F. (1994). Developmental changes in perception of non-native vowel contrasts. Journal of Experimental Psychology: Human Perception and Performance, 20, 421-435.

Port, R. F., & van Gelder, T. (Eds.). (1995). Mind as motion. Cambridge, MA: MIT Press.

Prasada, S., & Pinker, S. (1993). Generalisation of regular and irregular morphological patterns. Language and Cognitive Processes, 8, 1-56.

Quine, W. V. O. (1960). Word and object. Cambridge, MA: MIT Press.

Reznick, S. (1990). Visual preference as a test of infant word comprehension. Applied Psycholinguistics, 11, 145-166.

Rosch, E., & Mervis, C. B. (1975). Family resemblances: Studies in the internal structure of categories. Cognitive Psychology, 7, 573-605.

Rumelhart, D. E., & McClelland, J. L. (1986). On learning the past tense of English verbs. In J. L. McClelland & D. E. Rumelhart (Eds.), Parallel distributed processing: Explorations in the microstructure of cognition, (pp. 216-271). Cambridge: MIT Press.

Rumelhart, D. E., & McClelland, J. L. (1987). Learning the past tenses of English verbs: Implicit rules or parallel distributed processes? In B. MacWhinney (Ed.), Mechanisms of Language Acquisition, (pp. 195-248). Hillsdale, N.J.: Lawrence Erlbaum.

Saffran, J., Aslin, R., & Newport, E. (1996). Statistical learning by 8-month-old infants. Science, 274, 1926-1928.

Samuelson, L. K., & Smith, L. B. (in press). Memory and attention make smart word learning: An alternative account of Akhtar, Carpenter, and Tomasello. Child Development, xx, xx.

Savage-Rumbaugh, S., Sevcik, R. A., & Hopkins, W. D. (1988). Symbolic cross-modal transfer in two species of chimpanzees. Child Development, 59, 617-625.

Schafer, G., & Plunkett, K. (in press). Rapid word learning by 15-month-olds under tightly controlled conditions. Child Development, xx, xx-xx.

Schmajuk, N., & DiCarlo, J. (1992). Stimulus configuration, classical conditioning, and hippocampal function. Psychological Review, 99, 268-305.

Schwartz, R. G. (1988). Phonological factors in early lexical acquisition. In M. D. Smith & J. L. Locke (Eds.), The emergent lexicon: The child's development of a linguistic vocabulary, . New York: Academic Press.

Schwartz, R. G., & Leonard, L. B. (1981). Do children pick and choose? An examination of phonological selection and avoidance in early lexical acquisition. Journal of Child Language, 9, 319-336.

Schyns, P. (1991). A modular neural network model of concept acquisition. Cognitive Science, 15, 461-508.

Shrager, J. F., & Johnson, M. H. (1995). Waves of growth in the development of cortical function: A computational model. In B. Julesz & I. Kovacs (Eds.), Maturational windows and adult cortical plasticity, (pp. 31-44). New York: Addison-Wesley.

Shvachkin, N. (1948). Razvitiye fonematicheskogo vospriyatiya rechi v rannem vozraste. Izvestiva Akademii Pedagogicheskikh Nauk RSFSR, 13, 101-132.

Siskind, J. M. (1996). A computational study of cross-situational techniques for learning word-to-meaning mappings. Cognition, 61, 39-91.

Slobin, D. (1985). Crosslinguistic evidence for the language-making capacity. In D. Slobin (Ed.), The crosslinguistic study of language acquisition. Volume 2: Theoretical issues, (pp. 1157-1256). Hillsdale, N. J.: Lawrence Erlbaum.

Stiles-Davis, J., Sugarman, S., & Nass, R. (1985). The development of spatial and class relations in four young children with right-cerebral-hemisphere damage: Evidence for an early spatial constructive deficit. Brain and Cognition, 4(4), 388-412.

Stone, G. (1994). Combining connectionist and symbolic properties in a single process. In S. D. Lima, R. L. Corrigan, & G. K. Iverson (Eds.), The reality of linguistic rules, (pp. 417-444). Amsterdam: John Benjamins.

Sugarman, S. (1982). Developmental change in early representational intelligence: Evidence from spatial classification strategies and related verbal expressions. Cognitive Psychology, 14, 410-449.

Tomasello, M. (1992). First verbs: A case study of early grammatical development. Cambridge: Cambridge University Press.

Tomasello, M., & Akhtar, N. (1995). Two-year-olds use pragmatic cues to differentiate reference to objects and actions. Cognitive Development, 10, 201-224.

Twain, M. (1935). The aweful German language, The family Mark Twain, . New York: Harper & Brothers.

van der Lely, H. (1994). Canonical linking rules: Forward vs. reverse linking in normally developing and Specifically Language Impaired children. Cognition, 51, 29-72.

van Geert, P. (1991). A dynamic systems model of cognitive and language growth. Psychological Review, 98, 3-53.

Vihman, M. M., & McCune, L. (1994). When is a word a word? Journal of Child Language, 21, 517-542.

Wexler, K., & Culicover, P. (1980). Formal principles of language acquisition. Cambridge, Mass.: MIT Press.

Weyerts, H., Penke, M., Dohrn, U., Clahsen, H., & Münte, T. (1996). Brain potentials indicate differences between regular and irregular German noun plurals. Essex Research Reports in Linguistics, 13, 54-67.

Whorf, B. (1938). Some verbal categories of Hopi. Language, 14, 275-286.

Whorf, B. (1941). The relation of habitual thought and behaviour to language. In L. Spier (Ed.), Language, culture, and personality: Essays in memory of Edward Sapir, (pp. 7593). Ogden, Utah: University of Utah Press.

Woodward, A. L., Markman, E. M., & Fitzsimmons, C. M. (1994). Rapid word learning in 13and 18-month-olds. Developmental Psychology, 30, 553-566.

Wyttenback, M., May, M., & Hoy, D. (1996). Categorical perception of sound frequency by crickets. Science, 273, 1542-1544.

Zubin, D. A., & Köpcke, K. M. (1981). Gender: A less than arbitrary grammatical category. In R. Hendrick, C. Masek, & M. Miller (Eds.), Papers from the Seventeenth Regional Meeting, (pp. 439-449). Chicago: Chicago Linguistic Society.

Zubin, D. A., & Köpcke, K. M. (1986). Gender and folk taxonomy: The indexical relation between grammatical and lexical categorization. In C. Craig (Ed.), Noun classes and categorization, (pp. 139-180). Amsterdam: John Benjamins.