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21L.448J Darwin and Design (MIT) 21L.448J Darwin and Design (MIT)

Description

In the Origin of Species (1859), Charles Darwin gave us a model for understanding how natural objects and systems can evidence design without positing a designer: how purpose and mechanism can exist without intelligent agency. Texts in this course deal with pre- and post-Darwinian treatment of this topic within literature and speculative thought since the eighteenth century. We will give some attention to the modern study of feedback mechanisms in artificial intelligence. Our reading will be in Hume, Voltaire, Malthus, Darwin, Butler, H. G. Wells, and Turing. In the Origin of Species (1859), Charles Darwin gave us a model for understanding how natural objects and systems can evidence design without positing a designer: how purpose and mechanism can exist without intelligent agency. Texts in this course deal with pre- and post-Darwinian treatment of this topic within literature and speculative thought since the eighteenth century. We will give some attention to the modern study of feedback mechanisms in artificial intelligence. Our reading will be in Hume, Voltaire, Malthus, Darwin, Butler, H. G. Wells, and Turing.

Subjects

Origin of Species | Origin of Species | Darwin | Darwin | intelligent agency | intelligent agency | literature | literature | speculative thought | speculative thought | eighteenth century | eighteenth century | feedback mechanism | feedback mechanism | artificial intelligence | artificial intelligence | Hume | Hume | Voltaire | Voltaire | Malthus | Malthus | Butler | Butler | Hardy | Hardy | H.G. Wells | H.G. Wells | Freud | Freud | Evolution | Evolution | Modern Western philosophy | Modern Western philosophy | Philosophy of science | Philosophy of science | Religion | Religion | Science | Science | Life Sciences | Life Sciences | Social Aspects | Social Aspects | History | History | Intelligent design | individual species | Intelligent design | individual species | complexity | complexity | development | development | God theory of evolution | God theory of evolution | science | science | theological explanation | theological explanation | universe | universe | creatures | creatures | faith | faith | and theology | and theology | purpose of evolution | purpose of evolution | Design | Design | models | models | adaptation | adaptation

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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21L.448J Darwin and Design (MIT) 21L.448J Darwin and Design (MIT)

Description

Includes audio/video content: AV lectures. Humans are social animals; social demands, both cooperative and competitive, structure our development, our brain and our mind. This course covers social development, social behaviour, social cognition and social neuroscience, in both human and non-human social animals. Topics include altruism, empathy, communication, theory of mind, aggression, power, groups, mating, and morality. Methods include evolutionary biology, neuroscience, cognitive science, social psychology and anthropology. Includes audio/video content: AV lectures. Humans are social animals; social demands, both cooperative and competitive, structure our development, our brain and our mind. This course covers social development, social behaviour, social cognition and social neuroscience, in both human and non-human social animals. Topics include altruism, empathy, communication, theory of mind, aggression, power, groups, mating, and morality. Methods include evolutionary biology, neuroscience, cognitive science, social psychology and anthropology.

Subjects

21L.448 | 21L.448 | 21W.739 | 21W.739 | Origin of Species | Origin of Species | Darwin | Darwin | intelligent agency | intelligent agency | literature | literature | speculative thought | speculative thought | eighteenth century | eighteenth century | feedback mechanism | feedback mechanism | artificial intelligence | artificial intelligence | Hume | Hume | Voltaire | Voltaire | Malthus | Malthus | Butler | Butler | Hardy | Hardy | H.G. Wells | H.G. Wells | Freud | Freud | Evolution | Evolution | Modern Western philosophy | Modern Western philosophy | Philosophy of science | Philosophy of science | Religion | Religion | Science | Science | Life Sciences | Life Sciences | Social Aspects | Social Aspects | History | History | Intelligent design | individual species | Intelligent design | individual species | complexity | complexity | development | development | God theory of evolution | God theory of evolution | science | science | theological explanation | theological explanation | universe | universe | creatures | creatures | faith | faith | and theology | and theology | purpose of evolution | purpose of evolution | Design | Design | models | models | adaptation | adaptation

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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A railwayman goes to war: Francis Dent and the challenge of total war A railwayman goes to war: Francis Dent and the challenge of total war

Description

Francis Henry Dent was born at Holyhead on New Year’s Eve 1866, where his father, Admiral Charles Bayley Calmady Dent, was employed as the Marine Superintendent of the London & North-Western Railway. At the age of seventeen the young Francis … Continue reading → Francis Henry Dent was born at Holyhead on New Year’s Eve 1866, where his father, Admiral Charles Bayley Calmady Dent, was employed as the Marine Superintendent of the London & North-Western Railway. At the age of seventeen the young Francis … Continue reading →

Subjects

Machine | Machine | Unconventional Soldiers | Unconventional Soldiers | 355 (Military science) | 355 (Military science) | 358 (Other specialized forces & services) | 358 (Other specialized forces & services) | 610 (Medical Sciences) | 610 (Medical Sciences) | U (Military Science) | U (Military Science) | UA (Armies: Organization ? distribution ? military situation) | UA (Armies: Organization ? distribution ? military situation) | ww1 | ww1 | 358 (Other specialized forces & services) | 358 (Other specialized forces & services)

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http://creativecommons.org/licenses/by-nc-sa/2.0/

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What chemical compounds might be present in drinking water? What chemical compounds might be present in drinking water?

Description

Do you want to know whats in the water that you drink? This free course, What chemical compounds might be present in drinking water?, examines the chemical compounds that occur in drinking water. A high level of certain anions in water can cause environmental pollution and health problems. Cations are also important. For example, calcium salts contribute to the hardness of water and water treatment uses aluminium compounds. Additionally oxidising agents, such as ozone or chlorine, are vital in the disinfection of water. This OpenLearn course focuses on the chemistry of the p-block elements in Groups 13 to 18 of the Periodic Table. First published on Mon, 21 Mar 2016 as What chemical compounds might be present in drinking water?. To find out more visit The Open University's Openlearn websi Do you want to know whats in the water that you drink? This free course, What chemical compounds might be present in drinking water?, examines the chemical compounds that occur in drinking water. A high level of certain anions in water can cause environmental pollution and health problems. Cations are also important. For example, calcium salts contribute to the hardness of water and water treatment uses aluminium compounds. Additionally oxidising agents, such as ozone or chlorine, are vital in the disinfection of water. This OpenLearn course focuses on the chemistry of the p-block elements in Groups 13 to 18 of the Periodic Table. First published on Mon, 21 Mar 2016 as What chemical compounds might be present in drinking water?. To find out more visit The Open University's Openlearn websi

Subjects

Science | Maths & Technology | Science | Maths & Technology | Science | Science | Chemistry | Chemistry | S215_1 | S215_1 | water | water | ions | ions | nitrogen cycle | nitrogen cycle | arsenic | arsenic | polyprotic | polyprotic | aluminium | aluminium

License

Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

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Book Launch: State Control over Private Military and Security Companies in Armed Conflict

Description

Hannah Tonkin, Lawyer at the UN International Criminal Tribunal for Rwanda, gives a talk to launch her new book on State control over private military companies in areas of armed conflict. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

politics | private armies | Social Sciences | armed conflict | politics | private armies | Social Sciences | armed conflict | 2011-10-10

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Andy Field on teaching quantitative methods to social science students

Description

Andy Field (University of Sussex) discusses his experiences and views of what works well when teaching quantitative methods to undergraduate social science students, especially with mixed ability and low motivation students. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

sociology | quantitative methods | statistics | learning | teaching | Social Sciences | sociology | quantitative methods | statistics | learning | teaching | Social Sciences

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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The evolutionary history and genetics of primate brain size

Description

In this Institute of Cognitive and Evolutionary Seminar, Stephen Montgomery (University of Cambridge) discusses "The evolutionary history and genetics of primate brain size." 15 June 2011. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | cognition | evolution | primates | Social Sciences | anthropology | cognition | evolution | primates | Social Sciences

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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The Social Brain on the Internet

Description

In primates and humans alike, the number of social relationships an individual can have is constrained in part by its social cognitive competences and in part by the time available to invest in face-to-face interaction. I will show that time, in particular, has a significant effect on the quality and stability of social relationships. If the quality of a relationship is a function of the time invested in it, then we might expect a technology that allows an individual to cut through the time constraints inherent in face-to-face interaction will allow larger social networks to be maintained. Social networking media on the Internet provide one obvious possibility in this respect. I will review evidence suggesting that the Internet does not (and cannot) help us to widen our social horizons, an Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Why the Hominin Cognitive Niche Was and Is a Crucially Socio-cognitive Niche

Description

Tooby and deVore argued that hominin evolution hinged on the exploitation of a unique 'cognitive niche'. We propose that a diversity of evidence indicates this was fundamentally a socio-cognitive niche. Analysis of hunter-gatherer ethnologies confirms unprecedented levels of egalitarian behaviour, cooperation and culture, in comparison to other primates and inferred ancestral stages. In conjunction with recent archaeological findings on the evolution of hunting, we use these data to reconstruct socio-cognitive changes in the course of hominin evolution, including joint planning and the impact of language. Precursors to these characteristics are inferred on the basis of recent observational and experimental studies of non-human primates' socio-cognitive abilities including cultural trans Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Metacognition and the Social Mind: How Individuals Interact at the Neural Level

Description

I will review recent research in neuroimaging and computation neuroscience, and present a new paradigm for studying decision making in pairs. Results from this paradigm demonstrate that discussion between the partners is necessary and sufficient for creating an advantage for the group decision and a more accurate picture of the world than can be achieved by either partner alone. I conclude that metacognition - the ability to introspect upon one's own experience and to communicate this to another - is the key to understanding the evolution of human cognition, including consciousness and group decision making. Presented by Chris Frith (Wellcome Trust Centre for Neuroimaging at UCL, UK) Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Experiencing Language

Description

The evolutionary relationship between human linguistic capacity and humans' emotional make-up has not, as yet, received focused attention. Was the evolution of language in our lineage possible because early hominines were emotionally different from their ancestors, and, if so, in what ways? Has language altered human emotions? We discuss and develop recent proposals that an important precondition for the evolution of human language was the evolution of social emotions in pre-linguistic humans. We suggest that as language evolved, it altered important aspects of human emotionality, leading to a co-evolutionary feedback between human linguistic ability and human emotions. Presented by Eva Jablonka, Daniel Dor, Simona Ginsburg (Cohn Institute for the History and Philosophy of Science, Tel Av Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Signals, Honesty and the Evolution of Language

Description

The evolution of language is a long-standing puzzle for many reasons. One is that its very virtues as a system of communication seem to open the door to ruinous free-riding and deception. This paper will locate and partially solve that problem within a framework explaining the evolution of honest signals and informational co-operation in human evolution, and will use that framework to develop a partial picture of language evolution. Presented by Kim Sterenly (Philosophy, Australian National University). Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Embodiment: Taking Sociality Seriously

Description

A very wise person of our acquaintance once said, 'Read old books to get new ideas'. Here, we pursue the ideas presented in old books by Lev Vygotsky and George Herbert Mead as a means to account for the differences in social life between human and non-human primates and, by extension, their cognition. We consider the contrasting perspectives of Vygotsky and Mead on the links between thought and language, and relate these to subsequent developments in the study of animal cognition, and the emergence of the fields of embodied and distributed cognition. We then use this synthesis to argue that, as Wundt originally suggested, the study of social life must be fundamentally social and situated, and cannot be a laboratory endeavour focused solely on processes within individuals. We use develo Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Cortico-cerebellar Evolution and the Distributed Neural Basis of Cognition

Description

Biologists interested in cognitive evolution have focussed on the dramatic expansion of the forebrain, particularly the neocortex, in lineages such as primates. Another structure, however - the cerebellum - contains four to five times more neurons than the neocortex, is massively and reciprocally inter-connected with it via intermediate nuclei, has complex cognitive and learning functions, and yet has been largely ignored in accounts of cognitive evolution. This talk explores the correlated evolution and ontogeny of neocortex, cerebellum and associated structures and the implications of such patterns for understanding the neural basis of cognition. Consistent with the idea of embodied cognition, brain size is associated with specific sensory-motor specializations. The results emphasize the Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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The Mystery of Cumulative Culture

Description

Human demographic and ecological success is frequently attributed to our capacity for cumulative culture, which allows human knowledge and technology to build up and improve over time. Yet it remains a mystery why other animals might possess socially learned traditions but lack this capacity for cumulative cultural knowledge gain. Nor is it immediately apparent what cognitive, social or demographic factors are necessary for accumulation to occur. Here I explore the factors that led to the evolution of the human cultural capability, drawing on a combination of experimental and theoretical approaches. I will present insights from the social learning strategies tournament, and comparative statistical analyses of primate social learning, which together imply that there may have been selection Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Cultural Inheritance of Cultural Learning

Description

It is widely acknowledged that the cumulative cultural inheritance of technological skills and social practices has played a major role in shaping the ways of life of modern humans. The term 'cultural learning' refers to the psychological processes that make cultural inheritance possible. Curiously, even those researchers who have been most influential in demonstrating the importance of cultural inheritance emphasise that cultural learning depends on gene-based psychological adaptations. Like Evolutionary Psychologists, they assume that cultural learning is made possible by genetically-evolved, human-specific and domain-specific cognitive processes. I will suggest that these assumptions are not supported by recent research on social learning and imitation, social decision-making, and soc Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Welcome and Introduction

Description

Introduction to the "New Thinking: Advances in the Study of Human Cognitive Evolution" conference. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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The Social Brain on the Internet

Description

In primates and humans alike, the number of social relationships an individual can have is constrained in part by its social cognitive competences and in part by the time available to invest in face-to-face interaction. I will show that time, in particular, has a significant effect on the quality and stability of social relationships. If the quality of a relationship is a function of the time invested in it, then we might expect a technology that allows an individual to cut through the time constraints inherent in face-to-face interaction will allow larger social networks to be maintained. Social networking media on the Internet provide one obvious possibility in this respect. I will review evidence suggesting that the Internet does not (and cannot) help us to widen our social horizons, an Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Why the Hominin Cognitive Niche Was and Is a Crucially Socio-cognitive Niche

Description

Tooby and deVore argued that hominin evolution hinged on the exploitation of a unique 'cognitive niche'. We propose that a diversity of evidence indicates this was fundamentally a socio-cognitive niche. Analysis of hunter-gatherer ethnologies confirms unprecedented levels of egalitarian behaviour, cooperation and culture, in comparison to other primates and inferred ancestral stages. In conjunction with recent archaeological findings on the evolution of hunting, we use these data to reconstruct socio-cognitive changes in the course of hominin evolution, including joint planning and the impact of language. Precursors to these characteristics are inferred on the basis of recent observational and experimental studies of non-human primates' socio-cognitive abilities including cultural trans Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Metacognition and the Social Mind: How Individuals Interact at the Neural Level

Description

I will review recent research in neuroimaging and computation neuroscience, and present a new paradigm for studying decision making in pairs. Results from this paradigm demonstrate that discussion between the partners is necessary and sufficient for creating an advantage for the group decision and a more accurate picture of the world than can be achieved by either partner alone. I conclude that metacognition - the ability to introspect upon one's own experience and to communicate this to another - is the key to understanding the evolution of human cognition, including consciousness and group decision making. Presented by Chris Frith (Wellcome Trust Centre for Neuroimaging at UCL, UK) Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Experiencing Language

Description

The evolutionary relationship between human linguistic capacity and humans' emotional make-up has not, as yet, received focused attention. Was the evolution of language in our lineage possible because early hominines were emotionally different from their ancestors, and, if so, in what ways? Has language altered human emotions? We discuss and develop recent proposals that an important precondition for the evolution of human language was the evolution of social emotions in pre-linguistic humans. We suggest that as language evolved, it altered important aspects of human emotionality, leading to a co-evolutionary feedback between human linguistic ability and human emotions. Presented by Eva Jablonka, Daniel Dor, Simona Ginsburg (Cohn Institute for the History and Philosophy of Science, Tel Av Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Signals, Honesty and the Evolution of Language

Description

The evolution of language is a long-standing puzzle for many reasons. One is that its very virtues as a system of communication seem to open the door to ruinous free-riding and deception. This paper will locate and partially solve that problem within a framework explaining the evolution of honest signals and informational co-operation in human evolution, and will use that framework to develop a partial picture of language evolution. Presented by Kim Sterenly (Philosophy, Australian National University). Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-24

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Embodiment: Taking Sociality Seriously

Description

A very wise person of our acquaintance once said, 'Read old books to get new ideas'. Here, we pursue the ideas presented in old books by Lev Vygotsky and George Herbert Mead as a means to account for the differences in social life between human and non-human primates and, by extension, their cognition. We consider the contrasting perspectives of Vygotsky and Mead on the links between thought and language, and relate these to subsequent developments in the study of animal cognition, and the emergence of the fields of embodied and distributed cognition. We then use this synthesis to argue that, as Wundt originally suggested, the study of social life must be fundamentally social and situated, and cannot be a laboratory endeavour focused solely on processes within individuals. We use develo Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Cortico-cerebellar Evolution and the Distributed Neural Basis of Cognition

Description

Biologists interested in cognitive evolution have focussed on the dramatic expansion of the forebrain, particularly the neocortex, in lineages such as primates. Another structure, however - the cerebellum - contains four to five times more neurons than the neocortex, is massively and reciprocally inter-connected with it via intermediate nuclei, has complex cognitive and learning functions, and yet has been largely ignored in accounts of cognitive evolution. This talk explores the correlated evolution and ontogeny of neocortex, cerebellum and associated structures and the implications of such patterns for understanding the neural basis of cognition. Consistent with the idea of embodied cognition, brain size is associated with specific sensory-motor specializations. The results emphasize the Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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The Mystery of Cumulative Culture

Description

Human demographic and ecological success is frequently attributed to our capacity for cumulative culture, which allows human knowledge and technology to build up and improve over time. Yet it remains a mystery why other animals might possess socially learned traditions but lack this capacity for cumulative cultural knowledge gain. Nor is it immediately apparent what cognitive, social or demographic factors are necessary for accumulation to occur. Here I explore the factors that led to the evolution of the human cultural capability, drawing on a combination of experimental and theoretical approaches. I will present insights from the social learning strategies tournament, and comparative statistical analyses of primate social learning, which together imply that there may have been selection Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

anthropology | evolution | cognitve | human | Social Sciences | anthropology | evolution | cognitve | human | Social Sciences | 2011-06-23

License

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