Music is a deeply entrenched human phenomenon. In this article, I argue that its evolutionary origins are intrinsically intertwined with the incremental anatomical, cognitive, social, and technological evolution of the hominin lineage. I propose an account of the evolution of Plio-Pleistocene hominins, focusing on traits that would be later implicated in music making. Such traits can be conceived as comprising the musicality mosaic or the multifaceted foundations of musicality. I then articulate and defend an account of protomusical behaviour, drawing theoretical (...) licence from the social brain framework of Robin Dunbar and colleagues, as well as the evolutionary framework for human culture and cooperation developed by Kim Sterelny. The role of gene-culture co-evolution and niche construction is brought to the fore in articulating the evolutionary account. Finally, I defend the view that music subsequently developed via processes of social learning and cumulative culture. (shrink)

Species evolve, very slowly, through selection of genes which give rise to phenotypes well adapted to their environments. The cultures, including the languages, of human communities evolve, much faster, maintaining at least a minimum level of adaptedness to the external, non- cultural environment. In the phylogenetic evolution of species, the transmission of information across generations is via copying of molecules, and innovation is by mutation and sexual recombination. In cultural evolution, the transmission of information across generations is by learning, and (...) innovation is by sporadic invention or borrowing from other cultures. This much is the foundational bedrock of evolutionary theory. But things get more complicated; there can be gene-culture co-evolution. Prior to the rise of culture, the physical environment is the only force shaping biological evolution from outside the organism, and cultures themselves are clearly constrained by the evolved biological characteristics of their members. But cultures become part of the external environment, and influence the course of biological evolution. For example, altruistic cultures with developed medical knowledge reduce the cost to the individual of carrying genes disposing to certain pathologies (such as diabetes); and such genes become more widespread in the populations maintaining such cultures. Assortative mating can affect biological evolution, and particular cultures may influence the factors which are sorted for in mating. (For a careful discussion of the effects of cultural evolution on natural selection, see Cavalli-Sforza and Bodmer, 1971:774- 804). This paper examines mechanisms involved in the co-evolution of a biological trait, the critical period for language acquisition, and a property of human cultures, the size of their languages. A gene/culture interaction will be shown that can be described as a kind of symbiosis, but perhaps more aptly as an `arms race'. In this introduction, we will sketch the basic mechanics of the interaction in very broad terms; the rest of the paper will explain and justify the details. The implications of our model for second language acquisition are given toward the end of the paper. (shrink)

Historical language change (), like evolution itself, is a fact; and its implications for the biological evolution of the human capacity for language acquisition () have been ably explored by many contemporary theorists. However, Christiansen & Chater's (C&C's) revolutionary call for a replacement of phylogenetic models with glossogenetic cultural models is based on an inadequate understanding of either. The solution to their lies before their eyes, but they mistakenly reject it due to a supposed Gene/;culture co-evolution poses a series of (...) difficult theoretical and empirical problems that will be resolved by subtle thinking, adequate models, and careful cross-disciplinary research, not by oversimplified manifestos. (shrink)

Many people feel compelled to disassociate themselves from wrongdoing. We call judgments to the effect “disassociation intuitions.” Do disassociation intuitions have a common cause? Why do they seem so obvious and resistant to countervailing reasons? How did they become so widespread? Here, we argue that disassociation intuitions are a natural product of gene‐culture co‐evolution. We also consider the mechanism that gene‐culture co‐evolution employed to achieve this result, arguing that a plausible candidate is disgust and its cultural echoes. This (...) theory of disassociation intuitions suggests a promising research program in the philosophy of psychology, which provides new ways of thinking about higher cognitive emotions, and biologically constrained cognitive capacities generally. (shrink)

Our target article argued that a genetically specified Universal Grammar (UG), capturing arbitrary properties of languages, is not tenable on evolutionary grounds, and that the close fit between language and language learners arises because language is shaped by the brain, rather than the reverse. Few commentaries defend a genetically specified UG. Some commentators argue that we underestimate the importance of processes of cultural transmission; some propose additional cognitive and brain mechanisms that may constrain language and perhaps differentiate humans from nonhuman (...) primates; and others argue that we overstate or understate the case against co-evolution of language genes. In engaging with these issues, we suggest that a new synthesis concerning the relationship between brains, genes, and language may be emerging. (shrink)

The 1981 book Genes, Mind and Culture by Edward O. Wilson and Charles J. Lumsden attempts to offer a comprehensive theory of the linkage between biological and cultural evolution. In the following 21 May 1982 radio broadcast, produced by Julian Brown under the auspices of the British Broadcasting Corporation, Wilson is joined by a philosopher, a geneticist, and a religion scholar in a discussion of “gene culture co‐evolution” and of other issues raised by sociobiology. The discussion is introduced and (...) chaired by the editor of Nature, John Maddox. (shrink)

Smith gives an excellent overview on research in language evolution, in which he discusses several recent models of how linguistic systems and the cognitive capacities involved in language learning may have co‐evolved. He illustrates how combined pressures on language learning and communication/use produce compositionally structured languages. Once in place, a (culturally transmitted) communication system creates new selection pressures on the capacity for acquiring these systems.

The co-evolutionary concept of three-modal stable evolutionary strategy of Homo sapiens is developed. The concept based on the principle of evolutionary complementarity of anthropogenesis: value of evolutionary risk and evolutionary path of human evolution are defined by descriptive (evolutionary efficiency) and creative-teleological (evolutionary correctness) parameters simultaneously, that cannot be instrumental reduced to other ones. Resulting volume of both parameters define the vectors of biological, social, cultural and techno-rationalistic human evolution by two gear mechanism — genetic and cultural co-evolution and techno-humanitarian (...) balance. Explanatory model and methodology of evaluation of creatively teleological evolutionary risk component of NBIC technological complex is proposed. Integral part of the model is evolutionary semantics (time-varying semantic code, the compliance of the biological, socio-cultural and techno-rationalist adaptive modules of human stable evolutionary strategy). (shrink)

In a critical review of late twentieth-century gene-culture co-evolutionary models labelled as ‘global phylogeny’, the authors present evidence for the long legacy of co-evolutionary theories in European-based thinking, highlighting that (1) ideas of social and cultural evolution preceded the idea of biological evolution, (2) linguistics played a dominant role in the formation of a unified theory of human co-evolution, and (3) that co-evolutionary thinking was only possible due to perpetuated and renewed transdisciplinary reticulations between scholars of different disciplines—especially within the (...) integrative framework of the ‘humanid’ and the ‘hominid’ branches of anthropology. (shrink)

Language evolution, intended as an open problem in the evolutionary research programme, will be here analyzed from the theoretical perspective advanced by the supporters of the Extended Evolutionary Synthesis. Four factors and two associated concepts will be matched with a selection of critical examples concerning genus Homo evolution, relevant for the evolution of language, such as the evolution of hominin life-history traits, the enlargement of the social group, increased cooperation among individuals, behavioral change and innovations, heterochronic modifications leading to increased (...) synaptic plasticity. A particular form of niche construction will be considered in a multilevel framework. It will be argued that the four points mentioned above prove to be fundamental explanatory tools to understand how language might have emerged as a result of a gene-culture coevolutionary dynamics. (shrink)

An overview on archaeological evidence, provided by Colagè and d’Errico, reveals that the timing, location, and pace of cultural innovations are more consistent with scenarios that take culture, rather than genetic evolutionary processes, as the key driving force for human cognition. The authors elaborate on those mechanisms by which cultural evolution operates, with a specific focus on cultural exaptation and cultural neural reuse.

This article discusses the use of evolutionary theory in the cognitive science of religion (CSR), with special attention to critical issues and new developments. In the first part of the article, I will discuss the definition of evolution and describe the Modern Synthesis (or neo-Darwinian theory). In the next part, I will consider various evolutionary perspectives in CSR, including evolutionary psychology, sexual selection, gene-culture co-evolution, and cultural evolution. In the final part, I will turn to the problems with the Modern (...) Synthesis and present a new approach based on network theory, with potential applications to the study of biological and cultural systems. Keywords: cognitive science of religion, evolution, modern synthesis, cultural evolution, gene regulatory networks, evo-devo, deep learning. (shrink)

As proposed for the emergence of modern languages, we argue that modern uses of languages (pragmatics) also evolved gradually in our species under the effects of human self‐domestication, with three key aspects involved in a complex feedback loop: (a) a reduction in reactive aggression, (b) the sophistication of language structure (with emerging grammars initially facilitating the transition from physical aggression to verbal aggression); and (c) the potentiation of pragmatic principles governing conversation, including, but not limited to, turn‐taking and inferential abilities. (...) Our core hypothesis is that the reduction in reactive aggression, one of the key factors in self‐domestication processes, enabled us to fully exploit our cognitive and interactional potential as applied to linguistic exchanges, and ultimately to evolve a specific form of communication governed by persuasive reciprocity—a trait of human conversation characterized by both competition and cooperation. In turn, both early crude forms of language, well suited for verbal aggression/insult, and later more sophisticated forms of language, well suited for persuasive reciprocity, significantly contributed to the resolution and reduction of (physical) aggression, thus having a return effect on the self‐domestication processes. Supporting evidence for our proposal, as well as grounds for further testing, comes mainly from the consideration of cognitive disorders, which typically simultaneously present abnormal features of self‐domestication (including aggressive behavior) and problems with pragmatics and social functioning. While various approaches to language evolution typically reduce it to a single factor, our approach considers language evolution as a multifactorial process, with each player acting upon the other, engaging in an intense mutually reinforcing feedback loop. Moreover, we see language evolution as a gradual process, continuous with the pre‐linguistic cognitive abilities, which were engaged in a positive feedback loop with linguistic innovations, and where gene‐culture co‐evolution and cultural niche construction were the main driving forces. (shrink)

Transhumanism is a movement that advocates for the enhancement of human capabilities through the use of advanced technologies such as genetic enhancement. This article explores the definition, history, and development of transhumanism. Then, it compares the stance on genetic enhancement from the perspectives of bio-conservatism, bio-liberalism, and transhumanism. This article posits that transhuman evolution has twofold implications, allowing for the integration of transhumanist research and evolutionary biology. First, it offers a compelling scientific framework for understanding genetic enhancement, avoiding technological progressivism, (...) and incorporating concepts of evolutionary biology. Second, it represents a new evolutionary paradigm distinct from traditional Lamarckism and Darwinism. It marks the third synthesis of evolutionary biology, offering fresh perspectives on established concepts such as artificial selection and gene-culture co-evolution. In recent decades, human enhancement has captivated not only evolutionary biologists, neurobiologists, psychologists, and philosophers, but also those in fields such as cybernetics and artificial intelligence. In addition to genetic enhancement, other human enhancement technologies, including brain-computer interfaces and brain uploading, are currently under development, which the paradigm of transhuman evolution can better integrate into its framework. (shrink)

Sources of evolutionary risk for stable strategy of adaptive Homo sapiens are an imbalance of: (1) the intra-genomic co-evolution (intragenomic conflicts); (2) the gene-cultural co-evolution; (3) inter-cultural co-evolution; (4) techno-humanitarian balance; (5) inter-technological conflicts (technological traps). At least phenomenologically the components of the evolutionary risk are reversible, but in the aggregate they are in potentio irreversible destructive ones for biosocial, and cultural self-identity of Homo sapiens. When the actual evolution is the subject of a rationalist control and/or manipulation, the magnitude (...) of the 4th and 5th components of the evolutionary risk reaches a level of existential significance. (shrink)

Not by Genes Alone excellently explains Peter J. Richerson and Robert Boyd's important ideas about human gene-culture co-evolution to a broader audience but remains short of a larger vision of civilization. Several decades ago Ralph Burhoe had seen that fertile possibility in Richerson and Boyd's work. I suggest getting past present reductionistic customs to a scientific perspective having an integral place for virtue. Subsystem agency is part of this view, as is the driving role of abundance, whose ultimate origins are (...) in the mysterious, quintessentially energetic Big Bang. The free-rider problem may not impede higher social organization as inexorably as Richerson and Boyd believe; "the tragedy" of enervating leakage from "the commons" may often be less influential than an invigorating flow of externalities to the commons. Eukaryotic origins mark the origin of inevitable wider sharing as higher living systems evolve. I use a metaphor of flesh and spirit in drawing a parallel between that turning point and the wide sharing that occurs in civilization. This helps solve the enigma of the demographic transition. Why do so many productive participants in first-world societies severely restrict their selfish-gene reproduction to below replacement birth rate? It is not because culture is maladaptive but because civilization's brain and womb have become partially differentiated in distinct populations. Considerations of social boundaries, myths of sacrifice, and human creativity help in understanding how human social evolution taps potentials present in reality. Human beings' diverse vigorous activities—the organized ones and the inadvertent ones, the wise and the foolish, the good and the bad, the carefully thoughtful and the merely playful—provide the ground of being, or primordial soup, for cultural entities that transcend our intentions. If we have it right for the most part and are fortunate, we will continue to emerge at higher levels. (shrink)

The monograph is an English, expanded and revised version of the book Cheshko, V. T., Ivanitskaya, L.V., & Glazko, V.I. (2018). Anthropocene. Philosophy of Biotechnology. Moscow, Course. The manuscript was completed by me on November 15, 2019. It is a study devoted to the development of the concept of a stable evolutionary human strategy as a unique phenomenon of global evolution. The name “An Evolutionary Metaphysics (Cheshko, 2012; Glazko et al., 2016). With equal rights, this study could be entitled “Biotechnology (...) as a result and factor of the evolutionary processˮ. The choice in favor of used “The Evolutionary Metaphysics of Human Enhancement Technologiesˮ was made in accordance with the basic principle of modern post-academician and human-sized science, a classic example of which is biotechnology. The “Metaphysics of Evolution” and “Evolutionary Metaphysics” concepts are used in several ways in modern philosophical discourse. In any case, the values contain a logical or associative reference to the teleological nature of the evolutionary process (Hull, 1967, 1989; Apel, 1995; Faye, 2016; Dupre, 2017; Rose, 2018, etc). In our study, the “evolutionary metaphysics” serves to denote the thesis of the rationalization and technologization of global evolution and anthropogenesis, in particular. At the same time, the postulate of an open future remains relevant in relation to the results of the evolutionary process. The theory of evolution of complex, including the humans system and algorithm for its constructing are а synthesis of evolutionary epistemology, philosophical anthropology and concrete scientific empirical basis in modern science. ln other words, natural philosophy is regaining the status bar element theoretical science in the era of technology-driven evolution. The co-evolutionary concept of 3-modal stable evolutionary strategy of Homo sapiens is developed. The concept based оn the principle of evolutionary complementarity of anthropogenesis: value of evolutionary risk and evolutionary path of human evolution are defined bу descriptive (evolutionary efficiency) and creative-teleological (evolutionary correctness) parameters simultaneously, that cannot bе instrumental reduced to others ones. Resulting volume of both parameters define the vectors of blological, social, cultural and techno-rationalistic human evolution Ьу two gear mechanism genetic and cultural co-evolution and techno-humanitarian balance. The resultant each of them сап estimated Ьу the ratio of socio-psychological predispositions of humanization / dehumanization in mentality. Explanatory model and methodology of evaluation of creatively teleological evolutionary risk component of NBIC technological complex is proposed. Integral part of the model is evolutionary semantics (time-varying semantic code, the compliance of the blological, socio-cultural and techno-rationalist adaptive modules of human stable evolutionary strategy). It is seem necessary to make three clarifications. First, logical construct, “evolutionary metaphysics” contains an internal contradiction, because it unites two alternative explanatory models. “Metaphysics”, as a subject, implies deducibility of the process from the initial general abstract principle, and, consequently, the outcome of the development of the object is uniquely determined by the initial conditions. Predicate, “evolutionary”, means stochastic mechanism of realizing the same principle by memorizing and replicating random choices in all variants of the post-Darwin paradigm. In philosophy, random choice corresponds to the category of “free will” of a reasonable agent. In evolutionary theory, the same phenomenon is reflected in the concept of “covariant replication”. Authors will attempt to synthesize both of these models in a single transdisciplinary theoretical framework. Secondly, the interpretation of the term “evolutionary (adaptive) strategyˮ is different from the classical definition. The difference is that the adaptive strategy in this context is equivalent to the survival, i.e. it includes the adaptation to the environment and the transformation (construction) of the medium in accordance with the objectives of survival. To emphasize this difference authors used verbal construction “adaptiveˮ (rather than “evolutionaryˮ) strategy as more adequate. In all other cases, the two terms may be regarded as synonymous. Thirdly, the initial two essays of this series were published in one book in 2012. Their main goal was the development of the logically consistent methodological concept of stable adaptive (evolutionary) strategy of hominines and the argumentation of its heuristic possibilities as a transdisciplinary scientific paradigm of modern anthropology. The task was to demonstrate the possibilities of the SESH concept in describing and explaining the evolutionary prospects for the interaction of social organization and technology (techno-humanitarian balance) and the associated biological and cultural mechanisms of the genesis of religion (gene-cultural co-evolution). In other words, it was related to the sphere of cultural and philosophical anthropology, i.e. to the axiological component of any theoretical constructions describing the behavior of self-organizing systems with human participation. In contrast, the present work is an attempt to introduce this concept into the sphere of biological anthropology and, consequently, its main goal is to demonstrate the possibility of verification of its main provisions by means of procedures developed by natural science, i.e. refers to the descriptive component of the same theoretical constructions. The result of this in the future should be methods for assessing, calculating and predicting the risk of loss of biological and cultural identity of a person, associated with a permanent and continuously deepening process of development of science and technology. (shrink)

The co-evolutionary concept of Three-modal stable evolutionary strategy of Homo sapiens is developed. The concept based on the principle of evolutionary complementarity of anthropogenesis: value of evolutionary risk and evolutionary path of human evolution are defined by descriptive (evolutionary efficiency) and creative-teleological (evolutionary correctly) parameters simultaneously, that cannot be instrumental reduced to others ones. Resulting volume of both parameters define the trends of biological, social, cultural and techno-rationalistic human evolution by two gear mechanism ˗ gene-cultural co-evolution and techno- humanitarian balance. (...) The resultant each of them can estimated by the ratio of socio-psychological predispositions of humanization/dehumanization in mentality. Explanatory model and methodology of evaluation of creatively teleological evolutionary risk component of NBIC technological complex is proposed. Integral part of the model is evolutionary semantics (time-varying semantic code, the compliance of the biological, socio-cultural and techno-rationalist adaptive modules of human stable evolutionary strategy). (shrink)

A Better Ape covers the evolution of morality from the birth of our ape family through the evolution of human species and all the way up to the development of modern societies. In this summary, we highlight several main elements of this account: the co-evolution of morality with intelligence and complex sociality; the role of social institutions and religious morality in the cultural evolution of behaviorally modern humans in prehistory; the increasing complexity of the moral mind through biological evolution in (...) apes, gene-culture co-evolution in various human species, cultural evolution in Homo sapiens, and rational-cultural evolution in recent centuries; and, finally, a cultural evolutionary model of progressive and regressive moral change on which a key factor driving moral progress is social and democratic integration. (shrink)

To be human is to imitate. This is a strong claim, and a contentious one. It implies that the turning point in hominid evolution was when our ancestors first began to copy each other’s sounds and actions, and that this new ability was responsible for transforming an ordinary ape into one with a big brain, language, a curious penchant for music and art, and complex cumulative culture. The argument, briefly, is this. All evolutionary processes depend on information being copied with (...) variation and selection. Most living things on earth are the product of evolution based on the copying, varying and selection of genes. However, once humans began to imitate they provided a new kind of copying and so let loose an evolutionary process based on the copying, varying and selection of memes. This new evolutionary system co-evolved with the old to turn us into more than gene machines. We, alone on this planet, are also meme machines. We are selective imitation devices in an evolutionary arms race with a new replicator. This is why we are so different from other creatures; this is why we alone have big brains, language and complex culture. There are many contentious issues here; the nature and status of memes, the validity of the concept of a replicator, the difference between this and other theories of gene-culture co-evolution, and whether memetics really is necessary, as I believe it is, to explain human nature. I shall outline the basic principles of memetics, show how memes could have driven human evolution, and consider some of these questions along the way. (shrink)

The papers presented in this special collection focus upon conceptual, the oretical and epistemological aspects of sociobiology, an emerging discipline that deals with the extent to which genetic factors influence or control patterns of behavior as well as the extent to which patterns of behavior, in turn, influence or control genetic evolution. The Prologue advances a compre hensive acco/unt of the field of gene-culture co-evolution, where Lumsden and Gushurst differentiate between "classical" sociobiology (represented especially by Wilson's early work) and current (...) research on human socio biology (represented by Lumsden and Wilson's later work), which emphasizes interplay between genes, minds, and culture. The specter of genetic deter minism, no doubt, has created considerable controversy, some of which may be laid to rest by Hanna's analysis of the (ambiguous) notion of a "genetic program", which indicates the necessity for distinguishing between descriptive and prescriptive dimensions of this complex concept. Brandon offers a framework for assessing the respective contributions of nature and of nurture by advancing a means for measuring genetic and cultural influences upon "inheritance", which supports the conclusion that evolving patterns of behavior do not always maximize inclusive fitness, contrary to what socio biologists have claimed. The influence of culture upon genetic evolution, of course, can be adequately appraised only when a suitable account of culture itself has been found, a desideratum Smillie attempts to satisfy by utilizing the notion of "cinfo" as culturally transmitted ecological informa tion, a resource other species tend not to exploit. (shrink)

Social institutions are the laws, informal rules, and conventions that give durable structure to social interactions within a population. Such institutions are typically not designed consciously, are heritable at the population level, are frequently but not always group benefi cial, and are often symbolically marked. Conceptualizing social institutions as one of multiple possible stable cultural equilibrium allows a straightforward explanation of their properties. The evolution of institutions is partly driven by both the deliberate and intuitive decisions of individuals and collectivities. (...) The innate components of human psychology coevolved in response to a culturally evolved, institutional environment and refl ect a prosocial tendency of choices we make about institutional forms. (shrink)

The structuring of our environment to provide cues and reminders for ourselves is common: We leave notes on the fridge, we have a particular place for our keys where we deposit them, making them easy to find. We alter our world to streamline our cognitive tasks. But how did hominins gain this capacity? What pushed our ancestors to structure their physical environment in ways that buffered thinking and began the process of using the world cognitively? I argue that the capacity (...) to engage in these behaviours is a by-product of increased tool investment and tool curation, which in turn was necessary because of increasingly heterogeneous environments. The minute tools are carried and cared for, they begin to undergo selection for added functions, becoming available as cognitive primers and as signals. I explore the trajectory of this co-evolutionary feedback loop of hominins and their tools, and demonstrate the role tools have in shaping our thinking. (shrink)

Several evolutionary accounts of human social cognition posit that language has co-evolved with the sophisticated mindreading abilities of modern humans. It has also been argued that these mindreading abilities are the product of cultural, rather than biological, evolution. Taken together, these claims suggest that the evolution of language has played an important role in the cultural evolution of human social cognition. Here we present a new computational model which formalises the assumptions that underlie this hypothesis, in order to explore how (...) language and mindreading interact through cultural evolution. This model treats communicative behaviour as an interplay between the context in which communication occurs, an agent’s individual perspective on the world, and the agent’s lexicon. However, each agent’s perspective and lexicon are private mental representations, not directly observable to other agents. Learners are therefore confronted with the task of jointly inferring the lexicon and perspective of their cultural parent, based on their utterances in context. Simulation results show that given these assumptions, an informative lexicon evolves not just under a pressure to be successful at communicating, but also under a pressure for accurate perspective-inference. When such a lexicon evolves, agents become better at inferring others’ perspectives; not because their innate ability to learn about perspectives changes, but because sharing a language with others helps them to do so. (shrink)

This article takes an evolutionary “reverse engineering” standpoint on Homo discens, learning man, to track down the mechanisms that played a pivotal role in the natural selection of human being. The approach is “evolutionary sociological”—as opposed to gene-centred or psychologising—and utilises notions of co-evolutionary organism–environment transactions and niche construction. These are compatible with a Deweyan theory of action, which entails that in action one cannot but learn and one can only learn in action. Special attention is paid to apprentice-like learning-by-doing (...) peculiar to human socio-cultural niches since the Pleistocene, which has permitted each subsequent generation to learn the many habits and skills needed in utilising the affordances of action that constitute their ecological niche. Affordances and actions have changed over the history of human–environment transactions, but the core mechanisms of human learning have not changed much. It is increasingly important to appreciate these mechanisms now in the global age “knowledge society,” which is in a way similar to the Pleistocene era: characterised by uncertainty and life-determining problem-situations without any ready-made solutions, it calls for capacities to adapt to changing circumstances, and thus apprentice-like learning in action supported by savvy epistemological engineering of learning environments. (shrink)

Epigenetics impacts gene–culture coevolution by amplifying phenotypic variation, including clustering, and bridging the difference in timescales between genetic and cultural evolution. The dual inheritance model described by Uchiyama et al. could be modified to provide greater explanatory power by incorporating epigenetic effects.

Two computer simulations are investigated that model interaction of cultural evolution of language and biological evolution of adaptations to language. Both are agent‐based models in which a population of agents imitates each other using realistic vowels. The agents evolve under selective pressure for good imitation. In one model, the evolution of the vocal tract is modeled; in the other, a cognitive mechanism for perceiving speech accurately is modeled. In both cases, biological adaptations to using and learning speech evolve, even though (...) the system of speech sounds itself changes at a more rapid time scale than biological evolution. However, the fact that the available acoustic space is used maximally (a self‐organized result of cultural evolution) is constant, and therefore biological evolution does have a stable target. This work shows that when cultural and biological traits are continuous, their co‐evolution may lead to cognitive adaptations that are strong enough to detect empirically. (shrink)

Modern humans are probably a product of social and anatomical preadaptations on the part of our Miocene australopithecine ancestors combined with the increasingly high amplitude, high frequency climate variation of the Pleistocene. The genus Homo first appeared in the early Pleistocene as ice age climates began to grip the earth. We hypothesize that this co-occurrence is causal. The human ability to adapt by cultural means is, in theory, an adaptation to highly variable environments because cultural evolution can better track rapidly (...) changing environments than can genes. High resolution ice and sediment cores published in the early 1990s showed the last ice age was characterized by high amplitude millennial and submillenial scale variation, exactly the sort of variation mathematical models suggest should favor a costly capacity for culture. More recent cores suggest that over the last several 100 thousand year glacial cycles the amount of millennial scale variation has increased rather dramatically in parallel with increases in hominin brain size and sophistication of the artifacts they made. (shrink)

Since the emergence of our species at least, natural selection based on genetic variation has been replaced by culture as the major driving force in human evolution. It has made us what we are today, by ratcheting up cultural innovations, promoting new cognitive skills, rewiring brain networks, and even shifting gene distributions. Adopting an evolutionary perspective can therefore be highly informative for cognitive science in several ways: It encourages us to ask grand questions about the origins and ramifications of our (...) cognitive abilities; it equips us with the means to investigate, explain, and understand key dimensions of cognition; and it allows us to recognize the continued and ubiquitous workings of culture and evolution in everyday instances of cognitive behavior. Taking advantage of this reorientation presupposes a shift in focus, though, from human cognition as a general, homogenous phenomenon to the appreciation of cultural diversity in cognition as an invaluable source of data. (shrink)

I argue that our general disposition to make moral judgments and our core moral intuitions are likely the product of social selection—a kind of gene–culture coevolution driven by the enforcement of collectively agreed-upon rules. Social selection could potentially track mind-independent moral truth by a process that I term realist social selection: our ancestors could have acquired moral knowledge via reason and enforced rules based on that knowledge, thereby creating selection pressures that drove the evolution of our moral psychology. Given (...) anthropological evidence that early humans designed rules with the conscious aim of preserving individual autonomy and advancing their collective interests, the theory of realist social selection appears to be attractive for moral realists. The goal of evolutionary debunking arguments should be to show not that our moral beliefs are the product of natural selection, but that realist social selection did not occur. (shrink)

Two computer simulations are investigated that model interaction of cultural evolution of language and biological evolution of adaptations to language. Both are agent-based models in which a population of agents imitates each other using realistic vowels. The agents evolve under selective pressure for good imitation. In one model, the evolution of the vocal tract is modeled; in the other, a cognitive mechanism for perceiving speech accurately is modeled. In both cases, biological adaptations to using and learning speech evolve, even though (...) the system of speech sounds itself changes at a more rapid time scale than biological evolution. However, the fact that the available acoustic space is used maximally is constant, and therefore biological evolution does have a stable target. This work shows that when cultural and biological traits are continuous, their co-evolution may lead to cognitive adaptations that are strong enough to detect empirically. (shrink)

The use of socially learned information (culture) is central to human adaptations. We investigate the hypothesis that the process of cultural evolution has played an active, leading role in the evolution of genes. Culture normally evolves more rapidly than genes, creating novel environments that expose genes to new selective pressures. Many human genes that have been shown to be under recent or current selection are changing as a result of new environments created by cultural innovations. Some changed in response to (...) the development of agricultural subsistence systems in the Early and Middle Holocene. Alleles coding for adaptations to diets rich in plant starch (e.g., amylase copy number) and to epidemic diseases evolved as human populations expanded (e.g., sickle cell and G6PD defi- ciency alleles that provide protection against malaria). Large-scale scans using patterns of linkage disequilibrium to detect recent selection suggest that many more genes evolved in response to agriculture. Genetic change in response to the novel social environment of contemporary modern societies is also likely to be occurring. The functional effects of most of the alleles under selection during the last 10,000 years are currently unknown. Also unknown is the role of paleoenvironmental change in regulating the tempo of hominin evolution. Although the full extent of culture-driven gene-culture coevolution is thus far unknown for the deeper history of the human lineage, theory and some evidence suggest that such effects were profound. Genomic methods promise to have a major impact on our understanding of gene-culture coevolution over the span of hominin evolutionary history. (shrink)

The sound system of a language must be able to support a perceptual contrast between different words in order to signal communicatively relevant meaning distinctions. In this paper, we use a simple agent-based exemplar model in which the evolution of sound-category systems is understood as a co-evolutionary process, where the range of variation within sound categories is constrained by functional pressure to keep different words perceptually distinct. We show that this model can reproduce several observed effects on the range of (...) sound variation. We argue that phonological systems can be seen as finding a relative optimum of variation: Efficient communication is sustained while at the same time, hidden category variation provides pathways for future evolution. (shrink)

Some recent philosophical analyses of gene‐culture coevolutionary theory propose that morality is a contributing cause in (and not only an outcome of) human evolution. This paper considers implications of this idea for Thomistic moral theory. According to the coevolutionary account, the social practices of early human communities create selection pressures in favour of pro‐moral adaptations, making the evolution of morality a ‘biocultural’ process in which culture in some respects drives biology. This position chimes with, and indeed advances, some core themes (...) of Thomistic ethics, including: the abiding significance of moral passions; the centrality of practical reason; the social character of practical reason; moral realism; the naturalness of morality; the link between nature and normativity. Biocultural evolutionary theory can thus offer Thomistic ethicists some new ways to understand their old ideas. If it is true that morality is a cause and not only an effect of human evolution, then Thomists are invited to see morality as an even more natural phenomenon than they previously thought. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Introduction:Beyond Nature/Culture Dualism: Let's Try Co-Evolution Instead of "Control"Ronnie Hawkins (bio)In the original call for papers for this special issue, nature/culture dualism was characterized as a way of thinking that holds human culture and nonhuman nature to be radically different ontological spheres, hyperseparated and oppositional, or, as Val Plumwood maintains in her essay, an orientation that assumes "separate casts of characters in separate dramas." In the human sphere, individuals (...) are unique and their lives are precious (at least theoretically), with concerns understood "from the inside," in terms of experience, intention and agency. In the sphere of nature, on the other hand, nonhuman beings are seen "from the outside," at best as replaceable members of species or populations needed for ecosystem functioning and, at worst, as unagentive, thinglike objects open for unbridled human exploitation. With our vast information and communication systems now largely in place, however, our human "noösphere" is rapidly enlarging to place us firmly within the biosphere (which, of course, in the imagery of Venn diagrams, must make up the larger circle on the screen), illuminating "both casts in both dramas," or perhaps joining all actors on the stage in a many-act, multidimensional play, the denoument of which, whether or not the extant lifeforms on this [End Page 1] planet will continue to evolve, remains as yet unwritten. The five essays in this collection speak to these points, and together they develop an alternative vision to our present dualistic impasse, seeing multiple natural agencies engaged with humanity in ongoing co-evolution and, as Freya Mathews suggests, raising the hope for a synergistic restructuring of lifeways that may yet save us from anthropogenic catastrophe.In "The Culture of Nature As Seen Through Mississippian Geographies," Jeff Baldwin shows us the broad scope of interacting agents, human and nonhuman, biological and geological, in what he terms "the nature-culture of the Mississippi River," as highlighted by the recent devastation of human habitation along the Gulf Coast of the United States wrought by Hurricanes Katrina and Rita. By enacting a role in which we "believe [our]selves to rule over a mechanistic world," we humans have, over the last century or so, stemmed the natural flooding of the Mississippi, rerouting the sediments that maintained and extended the delta, funneling them into the sea and thereby bringing about the subsidence and erosion of hundreds of square miles of coastal land. Concomitantly, we have let agricultural runoff from the huge Mississippi drainage basin eject excess nutrients into the Gulf of Mexico, stimulating algal blooms and die-offs, depleting the water of oxygen so as to create a hypoxic "dead zone" that is now the size of Massachusetts, and (though Baldwin does not discuss this aspect of the problem) we have released enough petrochemical pollution in the area to have earned the lower reaches of the River the name "Cancer Alley" decades ago. A failure to grasp the import of these large anthropogenic effects is, sadly, evident in calls for rebuilding the New Orleans area according to the same mechanistic model that has already proven so inadequate. Baldwin observes that the earth changes wrought through human cultural innovation often occur so rapidly, or have their negative feedbacks technologically so displaced through time and space, that their eventual impacts on the larger system may initially go unappreciated. His vision of "the culture of nature," however, is ultimately an optimistic one, since his functional understanding of culture is that it ultimately works toward mutualism, promoting increasingly appropriate relationships among all interacting components, and he finds evidence of a growing effort to establish an "intentional co-evolution," a conscious alignment of human projects with the ongoing projects of a living nature that encompasses them. [End Page 2]If Baldwin's essay helps us see our human activities "from the outside"—not just "from within" prevailing human culture, where they seem taken-for-granted necessities given a certain form of social construction, but as they alternatively appear inside biospherical space, often as inappropriate, exploitative interferences and intrusions—Stacey Sowards' essay, "Identification Through Orangutans: Destabilizing the Nature/Culture Dualism," explores the potential for our connecting with nonhuman life "from the inside," relating... (shrink)

Laland et al. suggest that as a specific evolutionary force niche construction has entailed the encephalization of the brain. While not denying rapid co-evolution of brain traits and abilities with niches and cultures, I argue that encephalization reflects a classical genetic buffer system allowing rapid evolutionary adaptation independent of the nature of the selective pressure.

Together with language, music is perhaps the most distinctive behavioral trait of the human species. Different hypotheses have been proposed to explain why only humans perform music and how this ability might have evolved in our species. In this paper, we advance a new model of music evolution that builds on the self-domestication view of human evolution, according to which the human phenotype is, at least in part, the outcome of a process similar to domestication in other mammals, triggered by (...) the reduction in reactive aggression responses to environmental changes. We specifically argue that self-domestication can account for some of the cognitive changes, and particularly for the behaviors conducive to the complexification of music through a cultural mechanism. We hypothesize four stages in the evolution of music under self-domestication forces: (1) collective protomusic; (2) private, timbre-oriented music; (3) small-group, pitch-oriented music; and (4) collective, tonally organized music. This line of development encompasses the worldwide diversity of music types and genres and parallels what has been hypothesized for languages. Overall, music diversity might have emerged in a gradual fashion under the effects of the enhanced cultural niche construction as shaped by the progressive decrease in reactive (i.e., impulsive, triggered by fear or anger) aggression and the increase in proactive (i.e., premeditated, goal-directed) aggression. (shrink)

This paper explores the notion that economic preferences were shaped by the joint action of genetic and cultural evolution. We review the evidence that preferences are partly innate, the output of genetic forces, and partly plastic, the output of cultural forces. A model of how genes and culture might jointly shape preferences is sketched.

This paper discusses the relations between three forms of altruism: behavioural, evolutionary and motivational. Altruism in a behavioural sense is an act that benefits another person. It can range from volunteering to a charity and helping a neighbour, to giving money to a non-profit organisation or donating blood. People often dedicate their material and nonmaterial resources for the benefit of others to gain psychological, social and material benefits for themselves. Thus, their altruistic acts are driven by egoistic motivation. Also, the (...) final goal of an altruistic act may be the increase in the welfare of a group or adherence to a certain moral principle or a social norm. However, at least sometimes, the welfare of others is the ultimate goal of our actions, when our altruistic acts are performed from altruistic motivation. In evolutionary sense, altruism means the sacrifice of reproductive success for the benefit of other organisms. According to evolutionary theories, behaviour which promotes the reproductive success of the receiver at the cost of the actor is favoured by natural selection, because it is either beneficial for the altruist in the long run, or for his genes, or for the group he belongs to. However, altruism among people emerges as a distinctly human combination of innate and learned behaviours. Not only do we benefit the members of our own group, but we are capable of transcending our tribalistic instincts and putting the benefit of strangers at our own personal expense as our ultimate goal. (shrink)

While the “symbolic” meaning of early body ornamentation has received the lion’s share of attention in the debate on human origins, this paper sets out to explore their aesthetic and agentive dimensions, for the purpose of explaining how various ornamental forms would have led interacting groups to form a cultural identity of their own. To this end, semiotics is integrated with a new paradigm in the archaeology of mind, known as the theory of material engagement. Bridging specifically Peirce’s pragmatic theory (...) and Malafouris’ enactive take on aesthetics allows us to appreciate the formation of aesthetic ideals through the agentive effects of material signs. It is thus proposed that, by attending to the interrelation between form, effect, and affect, members of social groups would have come to appreciate the ways in which their ornamental culture resembles and differs from that of neighbouring groups. Following the Lund conception of cultural semiotics, I argue that models of Ego-culture would have come to evolve along Alter-cultures that also employ ornaments, and against Alius-cultures that have yet to develop or adopt personal decoration. The aesthetic ideals associated with early body ornaments must have therefore played a catalytic role in the formation and communication of group membership. I thus close by proposing that the origins of new cultural identities can be explained by tracing the co-development of ideas and ideals. (shrink)

Acknowledgments 1. Culture Is Essential 2. Culture Exists 3. Culture Evolves 4. Culture Is an Adaptation 5. Culture Is Maladaptive 6. Culture and Genes Coevolve 7. Nothing about Culture Makes Sense except in the Light of Evolution.

Few issues cause academics to disagree more than gender and race, especially when topics are addressed in terms of biological differences. To conduct research in these areas or comment favorably on research can subject one to scorn. When these topics are addressed, they generally take the form of philosophical debates. Anthony Walsh focuses upon such debates and supporting research. He divides parties into biologists and social constructionists, arguing that biologists remain focused on laboratory work, while constructionists are acutely aware of (...) the impact of biologists in contested territories. "Science Wars" introduces the ideas motivating the parties and examines social constructionism and its issues with science. He explores arguments over conceptual tools scientists love and constructionists abhor, and he provides a solid discussion of the co-evolution of genes and culture. Walsh then focuses his attention on gender, how constructionists view it, and the neuroscience explanation of gender differences. Moving to race, Walsh looks at how some have tried to bury the concept of race, while others emphasize it. He considers definitions of race--essentialist, taxonomic, population, and lineage--as they have evolved from the time of the Enlightenment to the present. And finally, he attempts to bring the opposing sides together by pointing out what each can bring to a meaningful discussion. (shrink)

We propose a conceptual model that maps the causal pathways relating biological evolution to cultural change. It builds on conventional evolutionary theory by placing emphasis on the capacity of organisms to modify sources of natural selection in their environment (niche construction) and by broadening the evolutionary dynamic to incorporate ontogenetic and cultural processes. In this model, phenotypes have a much more active role in evolution than generally conceived. This sheds light on hominid evolution, on the evolution of culture, and on (...) altruism and cooperation. Culture amplifies the capacity of human beings to modify sources of natural selection in their environments to the point where that capacity raises some new questions about the processes of human adaptation. Key Words: adaptation; altruism; cooperation; evolutionary psychology; gene-culture coevolution; human evolution; human genetics; niche construction; sociobiology. (shrink)

Commentary on Lesly Newson and Peter Richerson, Moral Beliefs about Homosexuality: Testing a Cultural Evolutionary Hypothesis.

In Stages of Thought, Michael Barnes examines a pattern of cognitive development that has evolved over thousands of years--a pattern manifest in both science and religion. He describes how the major world cultures built upon our natural human language skills to add literacy, logic, and, now, a highly critical self-awareness. In tracing the histories of both scientific and religious thought, Barnes shows why we think the way that we do today. Although religious and scientific modes of thought are often portrayed (...) as contradictory-one is highly rational while the other appeals to tradition and faith-Barnes argues that they evolved together and are actually complementary. Using the developmental thought of Piaget, he argues that cultures develop like individuals in that both learn easier cognitive skills first and master the harder ones later. This is especially true, says Barnes, because the harder ones often require first the creation of cognitive technology like writing or formal logic as well as the creation of social institutions that teach and sustain those skills. Barnes goes on to delineate the successive stages of the co-evolution of religious and scientific thought in the West, from the preliterate cultures of antiquity up to the present time. Along the way, he covers topics such as the impact of literacy on human modes of thought; the development of formalized logic and philosophical reflections; the emergence of an explicitly rational science; the birth of formal theologies; and, more recently, the growth of modern empirical science. This groundbreaking book offers a thorough and persuasive argument in favor of the development of modes of thought across cultures. It will serve as an invaluable resource for historians of religion, philosophers and historians of science, and anyone interested in the relationship between religion and science. (shrink)

This timely book examines the rise of posthumanism as both a material condition and a developing philosophical-ethical project in the age of cloning, gene engineering, organ transplants and implants. Nayar first maps the political and philosophical critiques of traditional humanism, revealing its exclusionary and 'speciesist' politics that position the human as a distinctive and dominant life form. He then contextualizes the posthumanist vision which, drawing upon biomedical, engineering and techno-scientific studies, concludes that human consciousness is shaped by its co-evolution with (...) other life forms, and our human form inescapably influenced by tools and technology. Finally the book explores posthumanism's roots in disability studies, animal studies and bioethics to underscore the constructed nature of 'normalcy' in bodies, and the singularity of species and life itself. As this book powerfully demonstrates, posthumanism marks a radical reassessment of the human as constituted by symbiosis, assimilation, difference and dependence upon and with other species. Mapping the terrain of these far-reaching debates, Posthumanism will be an invaluable companion to students of cultural studies and modern and contemporary literature."--Page 4 of cover. (shrink)

That language is shaped to fit the human brain is close to the Chomskyan position. The target article by Christiansen & Chater (C&C) assumes an entity, outside individual heads. What is the nature of this entity? Linguistic niche-construction and co-evolution of language and genes are possible, with some of what evolved being language-specific. Recent generative theory postulates much less than the old Universal Grammar (UG).