Behavioral genetics and cultural evolution have both revolutionized our understanding of human behavior – largely independent of each other. Here, we reconcile these two fields under a dual inheritance framework, offering a more nuanced understanding of the interaction between genes and culture. Going beyond typical analyses of gene–environment interactions, we describe the cultural dynamics that shape these interactions by shaping the environment and population structure. A cultural evolutionary approach can explain, for example, how factors such as rates of innovation and (...) diffusion, density of cultural subgroups, and tolerance for behavioral diversity impact heritability estimates, thus yielding predictions for different social contexts. Moreover, when cumulative culture functionally overlaps with genes, genetic effects become masked, unmasked, or even reversed, and the causal effects of an identified gene become confounded with features of the cultural environment. The manner of confounding is specific to a particular society at a particular time, but a WEIRD (western, educated, industrialized, rich, and democratic) sampling problem obscures this boundedness. Cultural evolutionary dynamics are typically missing from models of gene-to-phenotype causality, hindering generalizability of genetic effects across societies and across time. We lay out a reconciled framework and use it to predict the ways in which heritability should differ between societies, between socioeconomic levels, and other groupings within some societies but not others, and over the life course. An integrated cultural evolutionary behavioral genetic approach cuts through the nature–nurture debate and helps resolve controversies in topics such as IQ. (shrink)

The theme ‘East versus west’ is an old topic for discussion, but one that is constantly being rehashed. Though it has many aspects, a number of elements remain vague. Do East and West each form a monolithic bloc? Where does the East begin in the West's eyes, and vice versa, the West for the East? What, if any, are the basic differences separating the two?Palaeontologists tell us that a dividing line indicating a divergence of traditions in stone tools can be (...) traced back to the Lower Palaeolithic era, that is, a million years ago, in the western region of India. To the east of that line, in other words in East and South-east Asia, the most common tools are choppers and chopping-tools, while to the west, in western Asia, Europe and Africa, the main tools are hand-axes. The former are suitable for working vegetable materials and making bamboo or wooden, therefore perishable, objects, which for this reason leave no trace in the form of archaeological clues. The hand-axes are capable of being worked into stylized shapes and are appropriate for dismembering large herbivores and cutting up their meat. (shrink)

Measuring processes of a single spin-1/2 object and of a pair of spin-1/2 objects in the EPR-Bohm state are modeled by systems of differential equations. The latter model is a local model with hidden variables of the EPR-Bohm gedanken experiment. Although there is no dynamical interaction between the pair of spin-1/2 objects, the model reproduces approximately the quantum-mechanical correlations by coincidence counting. Hence the Bell inequality is violated. This result supports the idea that the coincidence counting is the source of (...) the apparent nonlocality in the EPR-Bohm gedanken experiment. (shrink)

科学の発展は我々の暮らしを豊かにし、人類が解決しえなかった多くの問題を解決してきた。しかしそれは同時に、科学では解決できない新たな問題を生み出す歴史でもあった。著者はその最たるものとして原子力をあげ、 望ましい科学のあり方について思索を進めていく。本書は、戦争を否定し平和を希求する科学者の集まり、パグウォッシュ会議の開催に触発されて書かれたもの。だが、会議の姿勢は評価しつつも、科学の発展そのものが文 明や人類を破壊しうるという認識が科学者の側には足らないと厳しく指摘する。二十世紀を代表する批評家が最後の力を振りしぼって遺した警世の書。.

The 29 commentaries amplified our key arguments; offered extensions, implications, and applications of the framework; and pushed back and clarified. To help forge the path forward for cultural evolutionary behavioral genetics, we (1) focus on conceptual disagreements and misconceptions about the concepts of heritability and culture; (2) further discuss points raised about the intertwined relationship between culture and genes; and (3) address extensions to the proposed framework, particularly as it relates to cultural clusters, development, and power. These commentaries, and the (...) deep engagement they represent, reinforce the importance of integrating cultural evolution and behavioral genetics. (shrink)

In addition to the many easily observable differences between people, there are also differences in people's subjective experiences that are harder to observe, and which, as a consequence, remain hidden. For example, people vary widely in how much visual imagery they experience. But those who cannot see in their mind's eye, tend to assume everyone is like them. Those who can, assume everyone else can as well. We argue that a study of such hidden phenomenal differences has much to teach (...) cognitive science. Uncovering and describing this variation (a search for unknown unknowns) may help predict otherwise puzzling differences in human behavior. The very existence of certain differences can also act as a stress test for some cognitive theories. Finally, studying hidden phenomenal differences is the first step toward understanding what kinds of environments may mask or unmask links between phenomenal experience and observable behavior. (shrink)

The industries of Japan have developed by learning from Western industries, especially the USA, and by implementing many of their concepts and technologies. However, Japanese industries have often implemented these concepts and technologies in a very different way from the USA. For example, while the USA uses information systems in retail industries as a tool by which data are collected and analysed to ‘control the market’, in Japan this same technology is considered rather as a learning device to ‘interpret the (...) market’. While in the USA the market is seen as a natural phenomenon capable of being controlled, the Japanese see it as an ambiguous phenomenon that is ever changing and is not capable of being controlled. Rather it is important to feel the change in the market itself. (shrink)

This article argues that the social quality approach can be usefully applied to studying “models of elderly care“ that enhance the wellbeing of the elderly and empower them to participate in social activities. Examining three cases in Japan and another three cases in e Netherlands, the study identifies actors, institutions and processes that have provided services for the elderly, highlighting the importance of history and culture in influencing the “social“ of the elderly. The article deals with a range of opportunities (...) and possibilities for optimizing care for the elderly, both as individuals and as a group, through promoting their social inclusion, social cohesion, socio-economic security and social empowerment. Grounded in community networks, as well as in social and intergenerational interaction, these “models“ demonstrate how care-givers, including nurses and family members, are also empowered in these processes. These discussions, reflecting empirical reality and conceptual insights, provide the basis of sustainable welfare policies that improve the social quality of the elderly. (shrink)

Is the state we experienced meditating a religious, philosophical, mystical experience? Or is it just a change in brain physiology? Is it possible to achieve a state "beyond the mind" (meditative state) through a technique that uses the mind (meditative technique)? This article explores these aspects by the perspective of neurobiology.

This paper presents how the Sōtō Zen priest, Kōshō Uchiyama, and the mercurial and polarizing German philosopher, Martin Heidegger, approach what the former calls “opening the hand of thought” (omoi no te banashi). For Uchiyama, the metaphoric opening of our mental hand requires the meditative practice of zazen or “just sitting” (shikantaza) and is said to mean that we avoid the act of thinking. Conversely, Heidegger maintains that the “releasement” (Gelassenheit) of our conceptual grasp is the basis of (...) a more essential and “meditative” mode of thinking and discourse (besinnliches Denken). While Uchiyama and Heidegger appear to be at odds, their approaches are in fact compatible. By engaging in a cross-tradition examination of these two thinkers, I provide an original contribution about how both Uchiyama and Heidegger view opening the hand of thought as the critical step toward a more attuned and compassionate mode of thinking and discourse. (shrink)

Uchiyama et al. propose a unified model linking cultural evolutionary theory to behavior genetics (BG) to enhance generalizability, enrich explanation, and predict how social factors shape heritability estimates. A consideration of culture evolution is beneficial but insufficient for purpose. I submit that their proposed model is underdeveloped and their emphasis on heritability estimates misguided. I discuss their ambiguous conception of culture, neglect of social structure, and the lack of a general theory in BG.

Uchiyama et al. productively discuss how culture can influence genetic heritability and, by modifying environmental conditions, limit the generalizability of genome-wide association studies (GWASs). Here, we supplement their account by highlighting how recent changes in culture and institutions in industrialized, westernized societies – such as increased female workforce participation – may have increased assortative mating. This alters the distribution of genotypes themselves, increasing heritability and phenotypic variance, and may be detectable using the latest methods.

Uchiyama et al. emphasize that culture evolves directionally and differentially as a function of selective pressures in different populations. Extending these principles to the level of families, lineages, and individuals exposes additional challenges to estimating heritability. Cultural traits expressed differentially as a function of the genetics whose influence they mask or unmask render inseparable the influences of culture and genetics.

Uchiyama et al. rightly consider how cultural variation may influence estimates of heritability by contributing to environmental sources of variation. We disagree, however, with the idea that generalisable estimates of heritability are ever a plausible aim. Heritability estimates are always context-specific, and to suggest otherwise is to misunderstand what heritability can and cannot tell us.

Uchiyama et al. describe how a more complete measurement of the dynamic nature of culture could help us unmask the true richness of genetic effects on behaviour. I underscore this notion here by reflecting on the role that the dynamic relationship between culture and DNA has played in our evolutionary history and will play in our evolutionary future.

Uchiyama et al. provide a theoretical framework to explain the gap between reported gene–environment interactions and real-life epidemiological statistics. Through cultural evolution, informed behavioral approaches mitigate the impact of environmental risk on disease onset. Similarly, here we propose that fostering certain behavioral traits, transmitted culturally or through access to scientific knowledge, could confer resilience to mental illnesses such as schizophrenia.

Uchiyama et al. present a dual inheritance framework for conceptualizing how behavioural genetics and cultural evolution interact and affect heritability. We posit that to achieve a holistic and nuanced representation of the cultural environment and evolution against which genetic effects should be evaluated, it is imperative to consider the multiple geographic cultural layers impacting individuals and genetic heritability.

Uchiyama et al. question heritability estimates in a convincing manner. We offer additional arguments to further bolster their claims, highlighting methodological issues in heritability coefficients' derivation, their misuse in various contexts, and their potential contributions to exacerbating common erroneous intuitions that have been shown to lead to deleterious social phenomena. We conclude that science should move away from using them.