Reuven Dukas and John M. Ratcliffe (eds)
- Published in print:
- 2009
- Published Online:
- February 2013
- ISBN:
- 9780226169354
- eISBN:
- 9780226169378
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226169378.003.0001
- Subject:
- Biology, Animal Behavior / Behavioral Ecology
This chapter provides an introduction to cognitive ecology that gives attention to ecology and the evolution of “cognition,” defining it as the neuronal processes concerned with the acquisition, ...
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This chapter provides an introduction to cognitive ecology that gives attention to ecology and the evolution of “cognition,” defining it as the neuronal processes concerned with the acquisition, retention, and use of information. Cognition can be divided into several interrelated and inseparable components including perception, learning, working memory, attention, long-term memory, and decision making. The chapter provides an overview of research programs relating cognition to avian ecology, as well as a brief discussion on cognitive aspects of decisions made within reproduction and antipredator behavior categories. It also shows a link between antipredatory and social behavior by analyzing the alarm calls of meerkats.Less
This chapter provides an introduction to cognitive ecology that gives attention to ecology and the evolution of “cognition,” defining it as the neuronal processes concerned with the acquisition, retention, and use of information. Cognition can be divided into several interrelated and inseparable components including perception, learning, working memory, attention, long-term memory, and decision making. The chapter provides an overview of research programs relating cognition to avian ecology, as well as a brief discussion on cognitive aspects of decisions made within reproduction and antipredator behavior categories. It also shows a link between antipredatory and social behavior by analyzing the alarm calls of meerkats.
Reuven Dukas and John M. Ratcliffe (eds)
- Published in print:
- 2009
- Published Online:
- February 2013
- ISBN:
- 9780226169354
- eISBN:
- 9780226169378
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226169378.003.0015
- Subject:
- Biology, Animal Behavior / Behavioral Ecology
This final chapter summarizes the arguments and discussions of the book. The chapters in this book have dealt with a huge range of topics in a vast assortment of animals. Learning, memory, and ...
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This final chapter summarizes the arguments and discussions of the book. The chapters in this book have dealt with a huge range of topics in a vast assortment of animals. Learning, memory, and overall behavioral flexibility have been analyzed from a variety of angles. A clear thread has linked the chapters together, and this is the underlying approach of relating cognitive mechanisms to animal ecology and evolution. This final chapter also talks about what is missing from this discussion and looks towards future directions. Overall, it can stated that the major challenge facing future work in cognitive ecology is the further integration of knowledge on the genetic, neurobiological, and endocrinological mechanisms underlying cognition with information about animal ecology and evolution.Less
This final chapter summarizes the arguments and discussions of the book. The chapters in this book have dealt with a huge range of topics in a vast assortment of animals. Learning, memory, and overall behavioral flexibility have been analyzed from a variety of angles. A clear thread has linked the chapters together, and this is the underlying approach of relating cognitive mechanisms to animal ecology and evolution. This final chapter also talks about what is missing from this discussion and looks towards future directions. Overall, it can stated that the major challenge facing future work in cognitive ecology is the further integration of knowledge on the genetic, neurobiological, and endocrinological mechanisms underlying cognition with information about animal ecology and evolution.
Reuven Dukas and John M. Ratcliffe (eds)
- Published in print:
- 2009
- Published Online:
- February 2013
- ISBN:
- 9780226169354
- eISBN:
- 9780226169378
- Item type:
- book
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226169378.001.0001
- Subject:
- Biology, Animal Behavior / Behavioral Ecology
This book is an attempt to describe cognitive ecology, which focuses on the ecology and evolution of “cognition,” defined as the neuronal processes concerned with the acquisition, retention, and use ...
More
This book is an attempt to describe cognitive ecology, which focuses on the ecology and evolution of “cognition,” defined as the neuronal processes concerned with the acquisition, retention, and use of information. It presents new work on established and emergent research programs relating cognition to avian ecology. The authors find that, with few exceptions, all animals have to make decisions within the four general categories of feeding, predator avoidance, interactions with competitors, and sexual behavior. Few chapters of the book focus on cognitive aspects of decisions made within two of these behavioral categories of reproduction and antipredator behavior. Not much attention has been devoted to cognition at the embryonic stage, but recent experiments reviewed by the authors clearly indicate that embryos possess sophisticated abilities to assess and respond to cues of predation. The book also discusses the social information, social learning, and integrating knowledge about animals' natural behavior, ecology, and evolutionary history with the powerful empirical techniques of experimental psychology.Less
This book is an attempt to describe cognitive ecology, which focuses on the ecology and evolution of “cognition,” defined as the neuronal processes concerned with the acquisition, retention, and use of information. It presents new work on established and emergent research programs relating cognition to avian ecology. The authors find that, with few exceptions, all animals have to make decisions within the four general categories of feeding, predator avoidance, interactions with competitors, and sexual behavior. Few chapters of the book focus on cognitive aspects of decisions made within two of these behavioral categories of reproduction and antipredator behavior. Not much attention has been devoted to cognition at the embryonic stage, but recent experiments reviewed by the authors clearly indicate that embryos possess sophisticated abilities to assess and respond to cues of predation. The book also discusses the social information, social learning, and integrating knowledge about animals' natural behavior, ecology, and evolutionary history with the powerful empirical techniques of experimental psychology.
Andrew Bozio
- Published in print:
- 2020
- Published Online:
- March 2020
- ISBN:
- 9780198846567
- eISBN:
- 9780191881763
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198846567.003.0001
- Subject:
- Literature, 16th-century and Renaissance Literature, 17th-century and Restoration Literature
Through a brief reading of Doctor Faustus, the introduction first suggests how characters think through their surroundings on the early modern English stage and how, in turn, playgoers relied upon ...
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Through a brief reading of Doctor Faustus, the introduction first suggests how characters think through their surroundings on the early modern English stage and how, in turn, playgoers relied upon the same process to orient themselves within the dramatic fiction. Drawing upon the concepts of situated cognition and cognitive ecology, the introduction defines this process of thinking through place as “ecological thinking.” After establishing that characters typically engage in ecological thinking to orient themselves within place, the introduction concludes by suggesting how this emphasis upon embodied and extended thought reframes our understanding of the relationship between space and place on the early modern stage.Less
Through a brief reading of Doctor Faustus, the introduction first suggests how characters think through their surroundings on the early modern English stage and how, in turn, playgoers relied upon the same process to orient themselves within the dramatic fiction. Drawing upon the concepts of situated cognition and cognitive ecology, the introduction defines this process of thinking through place as “ecological thinking.” After establishing that characters typically engage in ecological thinking to orient themselves within place, the introduction concludes by suggesting how this emphasis upon embodied and extended thought reframes our understanding of the relationship between space and place on the early modern stage.
John M.C. Hutchinson and Gerd Gigerenzer
- Published in print:
- 2011
- Published Online:
- May 2011
- ISBN:
- 9780199744282
- eISBN:
- 9780199894727
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199744282.003.0005
- Subject:
- Psychology, Cognitive Psychology, Human-Technology Interaction
The Centre for Adaptive Behavior and Cognition (ABC) has hypothesized that much human decision making can be described by simple algorithmic process models (heuristics). This chapter explains this ...
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The Centre for Adaptive Behavior and Cognition (ABC) has hypothesized that much human decision making can be described by simple algorithmic process models (heuristics). This chapter explains this approach and relates it to research in biology on rules of thumb, which we also review. As an example of a simple heuristic, consider the lexicographic strategy of take-the-best for choosing between two alternatives: Cues are searched in turn until one discriminates, then search stops and all other cues are ignored. Heuristics consist of building blocks, and building blocks exploit evolved or learned abilities such as recognition memory; it is the complexity of these abilities that allows the heuristics to be simple. Simple heuristics have an advantage in making decisions fast and with little information, and in avoiding overfitting. Furthermore, humans are observed to use simple heuristics. Simulations show that the statistical structures of different environments affect which heuristics perform better, a relationship referred to as ecological rationality. We contrast ecological rationality with the stronger claim of adaptation. Rules of thumb from biology provide clearer examples of adaptation because animals can be studied in the environments in which they evolved. The range of examples is also much more diverse. To investigate them, biologists have sometimes used similar simulation techniques to ABC, but many examples depend on empirically driven approaches. ABC's theoretical framework can be useful in connecting some of these examples, particularly the scattered literature on how information from different cues is integrated. Optimality modeling is usually used to explain less detailed aspects of behavior but might more often be redirected to investigate rules of thumb.Less
The Centre for Adaptive Behavior and Cognition (ABC) has hypothesized that much human decision making can be described by simple algorithmic process models (heuristics). This chapter explains this approach and relates it to research in biology on rules of thumb, which we also review. As an example of a simple heuristic, consider the lexicographic strategy of take-the-best for choosing between two alternatives: Cues are searched in turn until one discriminates, then search stops and all other cues are ignored. Heuristics consist of building blocks, and building blocks exploit evolved or learned abilities such as recognition memory; it is the complexity of these abilities that allows the heuristics to be simple. Simple heuristics have an advantage in making decisions fast and with little information, and in avoiding overfitting. Furthermore, humans are observed to use simple heuristics. Simulations show that the statistical structures of different environments affect which heuristics perform better, a relationship referred to as ecological rationality. We contrast ecological rationality with the stronger claim of adaptation. Rules of thumb from biology provide clearer examples of adaptation because animals can be studied in the environments in which they evolved. The range of examples is also much more diverse. To investigate them, biologists have sometimes used similar simulation techniques to ABC, but many examples depend on empirically driven approaches. ABC's theoretical framework can be useful in connecting some of these examples, particularly the scattered literature on how information from different cues is integrated. Optimality modeling is usually used to explain less detailed aspects of behavior but might more often be redirected to investigate rules of thumb.
Michael D. Beecher and John M. Burt (eds)
- Published in print:
- 2009
- Published Online:
- February 2013
- ISBN:
- 9780226169354
- eISBN:
- 9780226169378
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226169378.003.0004
- Subject:
- Biology, Animal Behavior / Behavioral Ecology
In later life This chapter presents an update on a long-term research program examining the rules that young song sparrows (Melospiza melodia) use to decide which songs to learn, retain, and later ...
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In later life This chapter presents an update on a long-term research program examining the rules that young song sparrows (Melospiza melodia) use to decide which songs to learn, retain, and later use, and the role that the social ecology of song sparrows has played in shaping these rules. The strategy of song learning in song sparrows and the mechanisms of song communication between neighboring adult males are shaped by cognitive factors at the proximate level and variables in the species' social ecology at the ultimate level. The chapter presents an argument around the fact that a cognitive ecology perspective captures the key features of song learning and song communication in this species, and will probably do so as well in other species of songbirds. The authors find that understanding the song-learning process may ultimately be the key to understanding why it is that song learning in one life stage parallels song communication stages.Less
In later life This chapter presents an update on a long-term research program examining the rules that young song sparrows (Melospiza melodia) use to decide which songs to learn, retain, and later use, and the role that the social ecology of song sparrows has played in shaping these rules. The strategy of song learning in song sparrows and the mechanisms of song communication between neighboring adult males are shaped by cognitive factors at the proximate level and variables in the species' social ecology at the ultimate level. The chapter presents an argument around the fact that a cognitive ecology perspective captures the key features of song learning and song communication in this species, and will probably do so as well in other species of songbirds. The authors find that understanding the song-learning process may ultimately be the key to understanding why it is that song learning in one life stage parallels song communication stages.
Steven Mullaney
- Published in print:
- 2015
- Published Online:
- January 2016
- ISBN:
- 9780226547633
- eISBN:
- 9780226117096
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226117096.003.0005
- Subject:
- Literature, 16th-century and Renaissance Literature
The epilogue returns to the matter of the dead, the embodied memories of the affective past in its physical remains, with a brief consideration of what it meant to think and feel with and through ...
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The epilogue returns to the matter of the dead, the embodied memories of the affective past in its physical remains, with a brief consideration of what it meant to think and feel with and through historical things, including the bones and skulls of loved ones. Earlier chapters regularly invoked the language of cognitive ecology to make sense of the social and inter-subjective dynamics of early modern performance. Bringing the dead of St. Paul’s together with the bones of the graveyard scene in Hamlet, the epilogue makes explicit these earlier references to the concepts of distributed cognition and extended mind. Elizabethans regularly relied on affective tools and technologies like popular theater as they sought to understand, in and of themselves, what it felt like to be an Elizabethan.Less
The epilogue returns to the matter of the dead, the embodied memories of the affective past in its physical remains, with a brief consideration of what it meant to think and feel with and through historical things, including the bones and skulls of loved ones. Earlier chapters regularly invoked the language of cognitive ecology to make sense of the social and inter-subjective dynamics of early modern performance. Bringing the dead of St. Paul’s together with the bones of the graveyard scene in Hamlet, the epilogue makes explicit these earlier references to the concepts of distributed cognition and extended mind. Elizabethans regularly relied on affective tools and technologies like popular theater as they sought to understand, in and of themselves, what it felt like to be an Elizabethan.
John Sutton
- Published in print:
- 2020
- Published Online:
- May 2020
- ISBN:
- 9780198852742
- eISBN:
- 9780191887109
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198852742.003.0005
- Subject:
- Literature, 17th-century and Restoration Literature, 16th-century and Renaissance Literature
Despite the new mobility of early modern English society, practices of personal and shared remembering were still anchored in experienced place. Even as technologies and strategies for dealing with ...
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Despite the new mobility of early modern English society, practices of personal and shared remembering were still anchored in experienced place. Even as technologies and strategies for dealing with past and future altered, memory was richly scaffolded by landscapes, artefacts, architecture, and institutions which themselves bore traces of individual and cultural intervention. This chapter discusses historical variation in two forms of remembering: explicit memories of specific past events, and embodied memories enacted in routine and habitual or skilful action. It is motivated by recent historical scholarship, especially from Nicola Whyte and Andy Wood, on topographies of remembrance in early modern landscape. It connects this new cultural history to the focus on lived bodily experience which characterizes historical phenomenology. It shows personal memory and embodied or habitual memory in play together, interacting in coordinated or competing ways, and assesses the historical utility of the idea of distributed cognitive ecologies.Less
Despite the new mobility of early modern English society, practices of personal and shared remembering were still anchored in experienced place. Even as technologies and strategies for dealing with past and future altered, memory was richly scaffolded by landscapes, artefacts, architecture, and institutions which themselves bore traces of individual and cultural intervention. This chapter discusses historical variation in two forms of remembering: explicit memories of specific past events, and embodied memories enacted in routine and habitual or skilful action. It is motivated by recent historical scholarship, especially from Nicola Whyte and Andy Wood, on topographies of remembrance in early modern landscape. It connects this new cultural history to the focus on lived bodily experience which characterizes historical phenomenology. It shows personal memory and embodied or habitual memory in play together, interacting in coordinated or competing ways, and assesses the historical utility of the idea of distributed cognitive ecologies.
Terence Cave
- Published in print:
- 2016
- Published Online:
- March 2016
- ISBN:
- 9780198749417
- eISBN:
- 9780191817328
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780198749417.003.0001
- Subject:
- Literature, Criticism/Theory, Film, Media, and Cultural Studies
This chapter provides a non-technical preview of the book’s themes and approaches. Using quotations from Montaigne, Milton, and Edward Lear, it focuses on notions of communication, conversation, and ...
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This chapter provides a non-technical preview of the book’s themes and approaches. Using quotations from Montaigne, Milton, and Edward Lear, it focuses on notions of communication, conversation, and the ways speakers seek to alter each other’s cognitive environment. It points to the role of agency, underspecifiction, and inference in communication of all kinds, including literary; it evokes the importance of literary and other counterfactuals; it speaks of the recognition of life (in other creatures, in puppets, etc.) as a defining feature of and motivation for cognition; and, via texts that suggest a haptic engagement with language, it highlights the value of literary works—and literary criticism—as instruments of extended cognition.Less
This chapter provides a non-technical preview of the book’s themes and approaches. Using quotations from Montaigne, Milton, and Edward Lear, it focuses on notions of communication, conversation, and the ways speakers seek to alter each other’s cognitive environment. It points to the role of agency, underspecifiction, and inference in communication of all kinds, including literary; it evokes the importance of literary and other counterfactuals; it speaks of the recognition of life (in other creatures, in puppets, etc.) as a defining feature of and motivation for cognition; and, via texts that suggest a haptic engagement with language, it highlights the value of literary works—and literary criticism—as instruments of extended cognition.
Andrew Bozio
- Published in print:
- 2020
- Published Online:
- March 2020
- ISBN:
- 9780198846567
- eISBN:
- 9780191881763
- Item type:
- book
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198846567.001.0001
- Subject:
- Literature, 16th-century and Renaissance Literature, 17th-century and Restoration Literature
Thinking Through Place on the Early Modern English Stage traces the way that characters think through their surroundings in early modern drama—not only how these characters orient themselves within ...
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Thinking Through Place on the Early Modern English Stage traces the way that characters think through their surroundings in early modern drama—not only how these characters orient themselves within unfamiliar or otherwise strange locations but also how their locations function as the scaffolding for perception, memory, and other forms of embodied thought. Such moments of thinking through place stage a process that both resembles and parallels the cognitive work that early modern playgoers undertook as they reimagined the stage as the settings of the dramatic fiction. The book traces the vexed relationship between these two registers of thought in works by Marlowe, Shakespeare, Beaumont, and Jonson. In doing so, it counters a critical tradition that figures drama as a form of spatial abstraction and demonstrates, instead, that theatrical performance constituted a sophisticated and self-reflexive mode of thinking through place in the early modern period.Less
Thinking Through Place on the Early Modern English Stage traces the way that characters think through their surroundings in early modern drama—not only how these characters orient themselves within unfamiliar or otherwise strange locations but also how their locations function as the scaffolding for perception, memory, and other forms of embodied thought. Such moments of thinking through place stage a process that both resembles and parallels the cognitive work that early modern playgoers undertook as they reimagined the stage as the settings of the dramatic fiction. The book traces the vexed relationship between these two registers of thought in works by Marlowe, Shakespeare, Beaumont, and Jonson. In doing so, it counters a critical tradition that figures drama as a form of spatial abstraction and demonstrates, instead, that theatrical performance constituted a sophisticated and self-reflexive mode of thinking through place in the early modern period.
Andrew Bozio
- Published in print:
- 2020
- Published Online:
- March 2020
- ISBN:
- 9780198846567
- eISBN:
- 9780191881763
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198846567.003.0007
- Subject:
- Literature, 16th-century and Renaissance Literature, 17th-century and Restoration Literature
The conclusion draws together the book’s major findings through a reading of Descartes’s Discourse on Method, focusing primarily upon the relationship between place and thought in the theorization of ...
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The conclusion draws together the book’s major findings through a reading of Descartes’s Discourse on Method, focusing primarily upon the relationship between place and thought in the theorization of the cogito. Against Descartes’s fantasy of disembodied and placeless mind, the conclusion suggests that early modern English drama stages the impossibility of separating thought from its foundation in embodiment and environment, as well as the consequences—alternately tragic and comic—of attempting to do so. Not only do the plays considered in this book show thinking to be an ecological phenomenon; they also reveal that the act of thinking through place can transform the contours of a location.Less
The conclusion draws together the book’s major findings through a reading of Descartes’s Discourse on Method, focusing primarily upon the relationship between place and thought in the theorization of the cogito. Against Descartes’s fantasy of disembodied and placeless mind, the conclusion suggests that early modern English drama stages the impossibility of separating thought from its foundation in embodiment and environment, as well as the consequences—alternately tragic and comic—of attempting to do so. Not only do the plays considered in this book show thinking to be an ecological phenomenon; they also reveal that the act of thinking through place can transform the contours of a location.
John D. Dunne
- Published in print:
- 2018
- Published Online:
- September 2018
- ISBN:
- 9780198827436
- eISBN:
- 9780191866289
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198827436.003.0005
- Subject:
- Business and Management, Organization Studies
Recent developments in the study of human cognition suggest that, in the context of interacting to accomplish a task together, humans engage in a form of ‘distributed’ or ‘cooperative’ cognition that ...
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Recent developments in the study of human cognition suggest that, in the context of interacting to accomplish a task together, humans engage in a form of ‘distributed’ or ‘cooperative’ cognition that facilitates their work. A key feature of this type of shared cognition is the capacity for humans to be aware of themselves as members of the cooperating group, and as the need arises, they can also become aware of the group itself when it must be regulated due to some dysfunction. In an attempt to bring new insights to this feature of cooperative cognition, this chapter engages with Buddhist epistemological theories of ‘reflexive awareness’ presented by the Buddhist philosopher Dharmakīrti and his followers, and it points to crucial implications of the Dharmakīrtian notion of reflexivity that may be relevant to understanding the kind of reflexivity that sustains cooperative cognition.Less
Recent developments in the study of human cognition suggest that, in the context of interacting to accomplish a task together, humans engage in a form of ‘distributed’ or ‘cooperative’ cognition that facilitates their work. A key feature of this type of shared cognition is the capacity for humans to be aware of themselves as members of the cooperating group, and as the need arises, they can also become aware of the group itself when it must be regulated due to some dysfunction. In an attempt to bring new insights to this feature of cooperative cognition, this chapter engages with Buddhist epistemological theories of ‘reflexive awareness’ presented by the Buddhist philosopher Dharmakīrti and his followers, and it points to crucial implications of the Dharmakīrtian notion of reflexivity that may be relevant to understanding the kind of reflexivity that sustains cooperative cognition.
Robert S. Siegler
- Published in print:
- 1996
- Published Online:
- November 2020
- ISBN:
- 9780195077872
- eISBN:
- 9780197561379
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780195077872.003.0007
- Subject:
- Education, Educational Policy and Politics
As described in the previous chapter, children’s thinking is highly variable. The present chapter focuses on implications of this variability for understanding ...
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As described in the previous chapter, children’s thinking is highly variable. The present chapter focuses on implications of this variability for understanding development. Thinking about a pair of visual metaphors may help facilitate recognition of these implications. The first, which I believe underlies most depictions of development, is the staircase metaphor. The second, which I believe offers a superior alternative, is the overlapping waves metaphor. Cognitive developmentalists have often phrased their models in terms that suggest that children of a given age think about a given task in a single way. W-year-olds are said to have a particular mental structure, a particular processing limit, a particular theory, strategy, or rule that gives rise to a single type of behavior. Change involves a substitution of one mental entity (and accompanying behavior) for another. The basic conceptualization that seems to underlie these models is aptly captured in the title of Robbie Case’s (1992) recent book The Mind’s Staircase. The visual metaphor that this title evokes is, I believe, central to most cognitive-developmental treatments of change: Children are depicted as thinking in a given way for an extended period of time (a tread on the staircase); then their thinking undergoes a sudden, vertical shift (a riser on the staircase); then they think in a different, higher way for another extended period of time (the next tread); and so on. This view of development is most closely identified with Piagetian and neo-Piagetian approaches, such as those of Piaget and Case. Thus, as shown in Figure 4.1, we see development depicted within Piaget’s theory as involving sensorimotor activities from birth to about 2 years; preoperational thinking from 2 to 7 years; concrete operational thinking from 7 to 12 years; and formal operational thinking from 12 years onward. Within Case’s theory, we see thinking depicted as advancing from the sensorimotor level between birth and 18 months, to the relational level from 18 months to 5 years, to the dimensional level between 5 and 11 years, and to the formal level at age 11 and beyond. Although this view of development is associated with the Piagetian and neo-Piagetian traditions, it is far from unique to them.
Less
As described in the previous chapter, children’s thinking is highly variable. The present chapter focuses on implications of this variability for understanding development. Thinking about a pair of visual metaphors may help facilitate recognition of these implications. The first, which I believe underlies most depictions of development, is the staircase metaphor. The second, which I believe offers a superior alternative, is the overlapping waves metaphor. Cognitive developmentalists have often phrased their models in terms that suggest that children of a given age think about a given task in a single way. W-year-olds are said to have a particular mental structure, a particular processing limit, a particular theory, strategy, or rule that gives rise to a single type of behavior. Change involves a substitution of one mental entity (and accompanying behavior) for another. The basic conceptualization that seems to underlie these models is aptly captured in the title of Robbie Case’s (1992) recent book The Mind’s Staircase. The visual metaphor that this title evokes is, I believe, central to most cognitive-developmental treatments of change: Children are depicted as thinking in a given way for an extended period of time (a tread on the staircase); then their thinking undergoes a sudden, vertical shift (a riser on the staircase); then they think in a different, higher way for another extended period of time (the next tread); and so on. This view of development is most closely identified with Piagetian and neo-Piagetian approaches, such as those of Piaget and Case. Thus, as shown in Figure 4.1, we see development depicted within Piaget’s theory as involving sensorimotor activities from birth to about 2 years; preoperational thinking from 2 to 7 years; concrete operational thinking from 7 to 12 years; and formal operational thinking from 12 years onward. Within Case’s theory, we see thinking depicted as advancing from the sensorimotor level between birth and 18 months, to the relational level from 18 months to 5 years, to the dimensional level between 5 and 11 years, and to the formal level at age 11 and beyond. Although this view of development is associated with the Piagetian and neo-Piagetian traditions, it is far from unique to them.