Constructive Evolution

This book represents an attempt to understand the evolution of Jean Piaget's basic ideas in the context of his own intellectual development. Piaget sought to elucidate human knowledge by studying its origins and development. In this book, Michael Chapman applies the same method to Piaget's own thinking. Dr Chapman shows that some of the Swiss psychologist's essential ideas originated in adolescent philosophical speculations about the relation between science and value. These same ideas were then developed step by step in Piaget's investigations of children's cognitive development. Dr Chapman claims that Piaget's use of developmental psychology as a means for addressing questions about the evolution of knowledge has been misunderstood by psychologists approaching his work exclusively from the perspectives of their own discipline. Reconstructing Piaget's intellectual biography makes possible a better understanding of the questions he originally posed and the answers he subsequently provided. Dr Chapman concludes with an assessment of Piaget's relevance for contemporary psychology and philosophy and suggests ways in which Piagetian theory might be further developed.

The first full-length study of Jean Piaget as a philosopher and evolutionist. Messerly traces Piaget's earliest conjectures about knowledge through its further developments to its mature formulation as 'genetic epistemology.' Messerly analyzes Piaget's constructivist theory of the evolution of human knowledge as continuous with, yet partially transcending, the biological process of adaptation to the environment. Messerly's study serves as an invitation to further explorations with Paiget's theory and will interest philosophers, biologists, and psychologists.

This book proposes a new two-step approach to the evolution of language, whereby syntax first evolved as an auto-organizational process for the human conceptual apparatus (as a Language of Thought), and this Language of Thought was then externalized for communication, due to social selection pressures. Anne Reboul first argues that despite the routine use of language in communication, current use is not a failsafe guide to adaptive history. She points out that human cognition is as unique in nature as is language as a communication system, suggesting deep links between human thought and language. If language is seen as a communication system, then the specificities of language, its hierarchical syntax, its creativity, and the ability to use it to talk about absent objects, are a mystery. This book shows that approaching language as a system for thought overcomes these problems, and provides a detailed account of both steps in the evolution of language: its evolution for thought and its externalization for communication.

Development and Evolution surveys and illuminates the key themes of rapidly changing fields and areas of controversy that the redefining the theory and philosophy of biology. It continues Stanley Salthe's investigation of evolutionary theory, begun in his influential book Evolving Hierarchical Systems, while negating the implicit philosophical mechanisms of much of that work. Here Salthe attempts to reinitiate a theory of biology from the perspective of development rather than from that of evolution, recognizing the applicability of general systems thinking to biological and social phenomena and pointing towards a non-Darwinian and even a postmodern biology.

Outgrowth in part of two conferences held in Cambridge in 2009: the Darwin Festival and a conference of the International Society for Science and Religion. (Preface).

This book provides fascinating insights into the development and genetics of evolutionary processes on the basis of animals living in the dark, such as the Astyanax cave fish. Biologically functionless traits show high variability, which results from neutral deleterious mutations no longer being eliminated by natural selection, which normally acts to preserve functional capability. These negative mutations accumulate until the traits they are responsible for become rudimentary or even lost. The random genetic basis of regressive evolution is in accordance with Nei’s Neutral Theory of Molecular Evolution, which applies to the molecular level. Such processes are particularly conspicuous in species living in constant darkness, where, for example in Astyanax, all traits depending on the exposure to light, like eyes, pigmentation, visually triggered aggressive behaviour, negative phototaxis, and several peripheral outcomes of circadian rhythmicity, are useless and diminish. In compensation constructive traits like taste, olfaction or the lateral line senses are improved by selection and do not show variability. Regressive and constructive traits inherit independently, proving that the rudimentation process is not driven by pleiotropic linkage between them. All these traits are subject to mosaic evolution and exhibit unproportional epistatic gene effects, which play an important role in evolutionary adaptation and improvement. Offering valuable evolutionary insights and supplemented by a wealth of illustrations, this book will appeal to evolutionary and developmental biologists alike.

Of what use is evolutionary science to society? Can evolutionary thinking provide us with the tools to better understand and even make positive changes to the world? Addressing key questions about the development of evolutionary thinking, this book explores the interaction between evolutionary theory and its practical applications. Featuring contributions from leading specialists, Pragmatic Evolution highlights the diverse and interdisciplinary applications of evolutionary thinking: their potential and limitations. The fields covered range from palaeontology, genetics, ecology, agriculture, fisheries, medicine, neurobiology, psychology and animal behaviour; to information technology, education, anthropology and philosophy. Detailed examples of useful and current evolutionary applications are provided throughout. An ideal source of information to promote a better understanding of contemporary evolutionary science and its applications, this book also encourages the continued development of new opportunities for constructive evolutionary applications across a range of fields.

What does it mean to say that mutation is random? How does mutation influence evolution? Are mutations merely the raw material for selection to shape adaptations? The author draws on a detailed knowledge of mutational mechanisms to argue that the randomness doctrine is best understood, not as a fact-based conclusion, but as the premise of a neo-Darwinian research program focused on selection. The successes of this research program created a blind spot - in mathematical models and verbal theories of causation - that has stymied efforts to re-think the role of variation. However, recent theoretical and empirical work shows that mutational biases can and do influence the course of evolution, including adaptive evolution, through a first come, first served mechanism. This thought-provoking book cuts through the conceptual tangle at the intersection of mutation, randomness, and evolution, offering a fresh, far-reaching, and testable view of the role of variation as a dispositional evolutionary factor. The arguments will be accessible to philosophers and historians with a serious interest in evolution, as well as to researchers and advanced students of evolution focused on molecules, microbes, evo-devo, and population genetics.