Prior to the twentieth century, theories of knowledge were inherently perceptual. Since then, developments in logic, statis- tics, and programming languages have inspired amodal theories that rest on principles fundamentally different from those underlying perception. In addition, perceptual approaches have become widely viewed as untenable because they are assumed to implement record- ing systems, not conceptual systems. A perceptual theory of knowledge is developed here in the context of current cognitive science and neuroscience. During perceptual experience, association areas in the brain capture bottom-up patterns of activation in sensory-motor areas. Later, in a top-down manner, association areas partially reactivate sensory-motor areas to implement perceptual symbols. The stor- age and reactivation of perceptual symbols operates at the level of perceptual components - not at the level of holistic perceptual expe- riences. Through the use of selective attention, schematic representations of perceptual components are extracted from experience and stored in memory (e.g., individual memories of green, purr, hot). As memories of the same component become organized around a com- mon frame, they implement a simulator that produces limitless simulations of the component (e.g., simulations of purr). Not only do such simulators develop for aspects of sensory experience, they also develop for aspects of proprioception (e.g., lift, run) and introspec- tion (e.g., compare, memory, happy, hungry). Once established, these simulators implement a basic conceptual system that represents types, supports categorization, and produces categorical inferences. These simulators further support productivity, propositions, and ab- stract concepts, thereby implementing a fully functional conceptual system. Productivity results from integrating simulators combinato- rially and recursively to produce complex simulations. Propositions result from binding simulators to perceived individuals to represent type-token relations. Abstract concepts are grounded in complex simulations of combined physical and introspective events. Thus, a per- ceptual theory of knowledge can implement a fully functional conceptual system while avoiding problems associated with amodal sym- bol systems. Implications for cognition, neuroscience, evolution, development, and artificial intelligence are explored.

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Perceptual symbol systems.

In 1974 an article appeared in Science magazine with the dry-sounding title “Judgment Under Uncertainty: Heuristics and Biases” by a pair of psychologists who were not well known outside their discipline of decision theory. In it Amos Tversky and Daniel Kahneman introduced the world to Prospect Theory, which mapped out how humans actually behave when faced with decisions about gains and losses, in contrast to how economists assumed that people behave. Prospect Theory turned Economics on its head by demonstrating through a series of ingenious experiments that people are much more concerned with losses than they are with gains, and that framing a choice from one perspective or the other will result in decisions that are exactly the opposite of each other, even if the outcomes are monetarily the same. Prospect Theory led cognitive psychology in a new direction that began to uncover other human biases in thinking that are probably not learned but are part of our brain’s wiring.

Thinking fast and slow.

The Contemporary Theory of Metaphor George Lakoff Do not go gentle into that good night. -Dylan Thomas Death is the mother of beauty . . . -Wallace Stevens, “Sunday Morningq Introduction These famous lines by Thomas and Stevens are examples of what classical theorists, at least since Aristotle, have referred to as metaphor: instances of novel poetic language in which words like “mother,q “go,q and “nightq are not used in their normal everyday senses. In classical theories of language, metaphor was seen as a matter of language not thought. Metaphorical expressions were assumed to be mutually exclusive with the realm of ordinary everyday language: everyday language had no metaphor, and metaphor used mechanisms outside the realm of everyday conventional language. The classical theory was taken so much for granted over the centuries that many people didn&#39;t realize that it was just a theory. The theory was not merely taken to be true, but came to be taken as definitional. The word “metaphorq was defined as a novel or poetic linguistic expression where one or more words for a concept are used outside of its normal conventional meaning to express a “similarq concept. But such issues are not matters for definitions; they are empirical questions. As a cognitive scientist and a linguist, one asks: What are the generalizations governing the linguistic expressions referred to classically as “poetic metaphors?q When this question is answered rigorously, the classical theory turns out to be false. The generalizations governing poetic metaphorical expressions are not in language, but in thought: They are general mappings across conceptual domains. Moreover, these general principles which take the form of conceptual mappings, apply not just to novel poetic expressions, but to much of ordinary everyday language. In short, the locus of metaphor is not in language at all, but in the way we conceptualize one mental domain in terms of another. The general theory of metaphor is given by characterizing such cross-domain mappings. And in the process, everyday abstract concepts like time, states, change, causation, and purpose also turn out to be metaphorical. The result is that metaphor (that is, cross-domain mapping) is absolutely central to ordinary natural language semantics, and that the study of literary metaphor is an extension of the study of everyday metaphor. Everyday metaphor is characterized by a huge system of thousands of cross-domain mappings, and this system is made use of in novel metaphor.

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The Contemporary Theory of Metaphor

NUDGE: IMPROVING DECISIONS ABOUT HEALTH, WEALTH, AND HAPPINESS by Richard H. Thaler and Cass R. Sunstein Penguin Books, 2009, 312 pp, ISBN 978-0-14-311526-7This book is best described formally as a general explanation of and advocacy for libertarian paternalism, a term coined by the authors in earlier publications. Informally, it is about how leaders, systems, organizations, and governments can nudge people to do the things the nudgers want and need done for the betterment of the nudgees, or of society. It is paternalism in the sense that "it is legitimate for choice architects to try to influence people's behavior in order to make their lives longer, healthier, and better", (p. 5) It is libertarian in that "people should be free to do what they like - and to opt out of undesirable arrangements if they want to do so", (p. 5) The built-in possibility of opting out or making a different choice preserves freedom of choice even though people's behavior has been influenced by the nature of the presentation of the information or by the structure of the decisionmaking system. I had never heard of libertarian paternalism before reading this book, and I now find it fascinating.Written for a general audience, this book contains mostly social and behavioral science theory and models, but there is considerable discussion of structure and process that has roots in mathematical and quantitative modeling. One of the main applications of this social system is economic choice in investing, selecting and purchasing products and services, systems of taxes, banking (mortgages, borrowing, savings), and retirement systems. Other quantitative social choice systems discussed include environmental effects, health care plans, gambling, and organ donations. Softer issues that are also subject to a nudge-based approach are marriage, education, eating, drinking, smoking, influence, spread of information, and politics. There is something in this book for everyone.The basis for this libertarian paternalism concept is in the social theory called "science of choice", the study of the design and implementation of influence systems on various kinds of people. The terms Econs and Humans, are used to refer to people with either considerable or little rational decision-making talent, respectively. The various libertarian paternalism concepts and systems presented are tested and compared in light of these two types of people. Two foundational issues that this book has in common with another book, Network of Echoes: Imitation, Innovation and Invisible Leaders, that was also reviewed for this issue of the Journal are that 1 ) there are two modes of thinking (or components of the brain) - an automatic (intuitive) process and a reflective (rational) process and 2) the need for conformity and the desire for imitation are powerful forces in human behavior. …

Nudge: Improving Decisions about Health, Wealth, and Happiness

This article presents a framework for thinking about the fundamental activities of inference—data analysis and interpretation—by researchers using qualitative data. I contrast these two activities. For analysis I describe seven operations: categorization, abstraction, comparison, dimensionalization, integration, iteration, and refutation. For interpretation I suggest metaphor and other literary devices as models for understanding the meanings of others, identifying patterns in these meanings, and representing how systems of meanings reproduce culture. The purpose of these descriptions is to suggest a vocabulary for and stimulate discussion about how researchers using qualitative analytical techniques arrive at conclusions and make sense of data.

https://www.jstor.org/stable/pdfplus/2489688.pdf

Analysis and Interpretation of Qualitative Data in Consumer Research

A long-awaited synthesis that marks a major turning point in cognitive science. . Until recently, cognitive science focused on such mental functions as problem solving, grammar, and pattern-the functions in which the human mind most closely resembles a computer. But humans are more than computers: we invent new meanings, imagine wildly, and even have ideas that have never existed before. Today the cutting edge of cognitive science addresses precisely these mysterious, creative aspects of the mind. The Way We Think is a landmark analysis of the imaginative nature of the mind. Conceptual blending is already widely known in research laboratories throughout the world; this book, written to be accessible to both lay readers and interested scientists, is its definitive statement. Gilles Fauconnier and Mark Turner show that conceptual blending is the root of the cognitively modern human mind, and that conceptual blends themselves are continually combined and reblended to create the rich mental fabric in which we live. The Way We Think shows how this blending operates; how it is affected by (and gives rise to) language, identity, culture, and invention; and how we imagine what could be and what might have been. The result is a bold and exciting new view of how the mind works.

The Way We Think: Conceptual Blending And The Mind's Hidden Complexities

"The authors restore metaphor to our lives by showing us that it's never gone away. We've merely been taught to talk as if it had: as though weather maps were more 'real' than the breath of autumn; as though, for that matter, Reason was really 'cool.' What we're saying whenever we say is a theme this book illumines for anyone attentive." -- Hugh Kenner, Johns Hopkins University "In this bold and powerful book, Lakoff and Turner continue their use of metaphor to show how our minds get hold of the world. They have achieved nothing less than a postmodern Understanding Poetry, a new way of reading and teaching that makes poetry again important." -- Norman Holland, University of Florida

More than Cool Reason: A Field Guide to Poetic Metaphor

This is an expanded version of Gilles Fauconnier and Mark Turner. 1998. "Conceptual Integration Networks." Cognitive Science 22:2 (April-June 1998), 133-187. Conceptual integration - "blending" - is a general cognitive operation on a par with analogy, recursion, mental modeling, conceptual categorization, and framing. It serves a variety of cognitive purposes. It is dynamic, supple, and active in the moment of thinking. It yields products that frequently become entrenched in conceptual structure and grammar, and it often performs new work on its previously entrenched products as inputs. Blending is easy to detect in spectacular cases but it is for the most part a routine, workaday process that escapes detection except on technical analysis. It is not reserved for special purposes, and is not costly.In blending, structure from input mental spaces is projected to a separate, blended mental space. The projection is selective. Through completion and elaboration, the blend develops structure not provided by the inputs. Inferences, arguments, and ideas developed in the blend can have effect in cognition, leading us to modify the initial inputs and to change our view of the corresponding situations.Blending operates according to a set of uniform structural and dynamic principles. It additionally observes a set of optimality principles.

Conceptual Integration Networks

https://onlinelibrary.wiley.com/doi/pdf/10.1207/s15516709cog2202_1

\"The authors restore metaphor to our lives by showing us that it's never gone away. We've merely been taught to talk as if it had: as though weather maps were more 'real' than the breath of autumn; as though, for that matter, Reason was really 'cool.' What we're saying whenever we say is a theme this book illumines for anyone attentive.\" -- Hugh Kenner, Johns Hopkins University \"In this bold and powerful book, Lakoff and Turner continue their use of metaphor to show how our minds get hold of the world. They have achieved nothing less than a postmodern Understanding Poetry, a new way of reading and teaching that makes poetry again important.\" -- Norman Holland, University of Florida

Mark Turner

Papers

The Way We Think: Conceptual Blending And The Mind's Hidden Complexities

More than Cool Reason: A Field Guide to Poetic Metaphor

Conceptual Integration Networks

Conceptual Integration Networks

More Than Cool Reason: A Field Guide to Poetic Metaphor