Implications Of Psycho Computational Modelling For Morphological Theory

Word storage and processing define a multi-factorial domain of scientific inquiry whose thorough investigation goes well beyond the boundaries of traditional disciplinary taxonomies, to require synergic integration of a wide range of methods, techniques and empirical and experimental findings. The present book intends to approach a few central issues concerning the organization, structure and functioning of the Mental Lexicon, by asking domain experts to look at common, central topics from complementary standpoints, and discuss the advantages of developing converging perspectives. The book will explore the connections between computational and algorithmic models of the mental lexicon, word frequency distributions and information theoretical measures of word families, statistical correlations across psycho-linguistic and cognitive evidence, principles of machine learning and integrative brain models of word storage and processing. Main goal of the book will be to map out the landscape of future research in this area, to foster the development of interdisciplinary curricula and help single-domain specialists understand and address issues and questions as they are raised in other disciplines.

Drawing on innovative research, the book reveals the wealth and breadth of the study of word-formation, both theoretically and empirically.

Correct word identification and processing is a prerequisite for accurate reading, and decades of psycholinguistic and neuroscientific research have shown that the magical moments of visual word recognition are short-lived and markedly fast. The time window in which a given letter string passes from being a mere sequence of printed curves and strokes to acquiring the word status takes around one third of a second. In a few hundred milliseconds, a skilled reader recognizes an isolated word and carries out a number of underlying processes, such as the encoding of letter position and letter identity, and lexico-semantic information retrieval. However, the precise manner (and order) in which these processes occur (or co-occur) is a matter of contention subject to empirical research. There’s no agreement regarding the precise timing of some of the essential processes that guide visual word processing, such as precise letter identification, letter position assignment or sub-word unit processing (bigrams, trigrams, syllables, morphemes), among others. Which is the sequence of processes that lead to lexical access? How do these and other processes interact with each other during the early moments of word processing? Do these processes occur in a serial fashion or do they take place in parallel? Are these processes subject to mutual interaction principles? Is feedback allowed for within the earliest stages of word identification? And ultimately, when does the reader’s brain effectively identify a given word? A vast number of questions remain open, and this Research Topic will cover some of them, giving the readership the opportunity to understand how the scientific community faces the problem of modeling the early stages of word identification according to the latest neuroscientific findings. The present Research Topic aimed to combine recent experimental evidence on early word processing from different techniques together with comprehensive reviews of the current work directions, in order to create a landmark forum in which experts in the field defined the state of the art and future directions. We were willing to receive submissions of empirical as well as theoretical and review articles based on different computational and neuroscience-oriented methodologies. We especially encouraged researchers primarily using electrophysiological or magnetoencephalographic techniques as well as eye-tracking to participate, given that these techniques provide us with the opportunity to uncover the mysteries of lexical access allowing for a fine-grained time-course analysis. The main focus of interest concerned the processes that are held within the initial 250-300 milliseconds after word presentation, covering areas that link basic visuo-attentional systems with linguistic mechanisms.

This book provides the first broad yet thorough coverage of issues in morphological theory. It includes a wide array of techniques and systems in computational morphology (including discussion of their limitations), and describes some unusual applications.Sproat motivates the study of computational morphology by arguing that a computational natural language system, such as a parser or a generator, must incorporate a model of morphology. He discusses a range of applications for programs with knowledge of morphology, some of which are not generally found in the literature. Sproat then provides an overview of some of the basic descriptive facts about morphology and issues in theoretical morphology and (lexical) phonology, as well as psycholinguistic evidence for human processing of morphological structure. He take up the basic techniques that have been proposed for doing morphological processing and discusses at length various systems (such as DECOMP and KIMMO) that incorporate part or all of those techniques, pointing out the inadequacies of such systems from both a descriptive and a computational point of view. He concludes by touching on interesting peripheral areas such as the analysis of complex nominals in English, and on the main contributions of Rumelhart and McClelland's connectionism to the computational analysis of words.

The area of research on printed word recognition has been one of the most active in the field of experimental psychology for well over a decade. However, notwithstanding the energetic research effort and despite the fact that there are many points of consensus, major controversies still exist. This volume is particularly concerned with the putative relationship between language and reading. It explores the ways by which orthography, phonology, morphology and meaning are interrelated in the reading process. Included are theoretical discussions as well as reviews of experimental evidence by leading researchers in the area of experimental reading studies. The book takes as its primary issue the question of the degree to which basic processes in reading reflect the structural characteristics of language such as phonology and morphology. It discusses how those characteristics can shape a language's orthography and affect the process of reading from word recognition to comprehension. Contributed by specialists, the broad-ranging mix of articles and papers not only gives a picture of current theory and data but a view of the directions in which this research area is vigorously moving.

"This book describes computational models of reading, or models that simulate and explain the mental processes that support the reading of text. The book provides introductory chapters on both reading research and computer models. The central chapters of the book then review what has been learned about reading from empirical research on four core reading processes: word identification, sentence processing, discourse representation, and how these three processes are coordinated with visual processing, attention, and eye-movement control. These central chapters also review an influential sample of computer models that have been developed to explain these key empirical findings, as well as comparative analyses of those models. The final chapter attempts to integrate this empirical and theoretical work be both describing a new comprehensive model of reading, Über-Reader, and reporting several simulations to illustrate how the model accounts for many of the basic phenomena related to reading"--

Morphology, the science of words, is a complex theoretical landscape, where a multitude of frameworks, each with their own tenets and formalism, compete for the explanation of linguistic facts. The Oxford Handbook of Morphological Theory is a comprehensive guide through this jungle of morphological theories. It provides a rich and up-to-date overview of theoretical frameworks, from Structuralism to Optimality Theory and from Minimalism to Construction Morphology...

Linguistic Morphology is a unique collection of cutting-edge research in the psycholinguistics of morphology, offering a comprehensive overview of this interdisciplinary field. This book brings together world-leading experts from linguisics, experimental psychology and cognitive neuroscience to examine morphology research from different disciplines. It provides an overview of how the brain deals with complex words; examining how they are easier to read, how they affect our brain dynamics and eye movements, how they mould the acquisition of language and literacy, and how they inform computational models of the linguistic brain. Chapters discuss topics ranging from subconscious visual identification to the high-level processing of sentences, how children make their first steps with complex words through to how proficient adults make lexical identification in less than 40 milliseconds. As a state-of-the-art resource in morphology research, this book will be highly relevant reading for students and researchers of linguistics, psychology and cognitive neuroscience. It will also act as a one-stop shop for experts in the field.

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