At the beginning of the 1950s most students of animal behavior in Britain saw the instinct concept developed by Konrad Lorenz in the 1930s as the central theoretical construct of the new ethology. In the mid 1950s J.B.S. Haldane made substantial efforts to undermine Lorenz''s status as the founder of the new discipline, challenging his priority on key ethological concepts. Haldane was also critical of Lorenz''s sharp distinction between instinctive and learnt behavior. This was inconsistent with Haldane''s account of the (...) evolution of language, and, according to Haldane, inconsistent with elementary genetics. British attitudes to the instinct concept changed dramatically in the wake of Daniel S. Lehraman''s 1953 critique of Lorenz, and by the 1960s Lorenz drew a clear distinction between his own views and those of the English-speaking ethologists. The inconsistencies between Lorenz''s ideas and the trends in contemporary evolutionary genetics that are reflected in Haldane''s critiques may help to explain why the Lorenzian instinct concept was unable to maintain itself in Britian. (shrink)

Everyone has heard of ‘epigenetics’, but the term means different things to different researchers. Four important contemporary meanings are outlined in this paper. Epigenetics in its various senses has implications for development, heredity, and evolution, and also for medicine. Concerning development, it cements the vision of a reactive genome strongly coupled to its environment. Concerning heredity, both narrowly epigenetic and broader ‘exogenetic’ systems of inheritance play important roles in the construction of phenotypes. A thoroughly epigenetic model of development and evolution (...) was Waddington’s aim when he introduced the term ‘epigenetics’ in the 1940s, but it has taken the modern development of molecular epigenetics to realize this aim. In the final sections of the paper we briefly outline some further implications of epigenetics for medicine and for the nature/nurture debate. (shrink)

The Baldwin effect is a process by which learnt traits become gradually incorporated into the genome through a Darwinian mechanism. From its inception, the Baldwin effect has been regarded with skepticism. The objective of this paper is to relativize this assessment. Our contribution is two-fold. To begin with, we provide a taxonomy of the different arguments that have been advocated in its defense, and distinguish between three justificatory dimensions—feasibility, explanatory relevance and likelihood—that have been unduly conflated. Second, we sharpen the (...) debate by providing an evolutionary game theoretic perspective that is able to generalize previous results. The upshot of this paper is that the mechanism envisaged by Baldwin is less puzzling than commonly thought. (shrink)

This article compares two different bodies of theories concerning the role of the genome in life processes. The first group of theories can be indicated as referring to the gene-centric paradigm. Dominated by an informational myth and a mechanistic Cartesian body/mind and form/substance dualism, this considers the genome as an ensemble of discrete units of information governing human body and behavior, and remains hegemonic in life sciences and in the public imagination. The second body of theories employs the principle of (...) the extraordinary plasticity of the (body-)organism and emphasizes the value of the (body-)organism-environment mutual interchange, known as ‘the epigenetic approach’. This approach is outlined, showing a gradual, paradigmatic shift from the genecentric towards an epigenetic approach can be observed in the ‘scientific landscape’ over the last 20 years. The article concludes by formulating the argument that this ‘epigenetic turn’ in life sciences has some important implication for renewing epistemological basis of social sciences. (shrink)

The “Baldwin effect” occurs when natural selection supplements adaptive phenotypic changes acquired during an organism’s lifetime. This effect, first described in 1896, is now usually considered to be rare and insignificant, and is not part of the explanatory repertoire of most evolutionary scientists. Arguments against it are examined here and found to be inadequate, either because they misunderstand the effect, or confuse it with Lamarckism, or fail to perceive it even while describing it. The article proposes examples showing that the (...) Baldwin effect is far more prevalent and powerful than even Baldwin’s few supporters realize. Evolved features of the human mind are described that make this effect unusually difficult to perceive. Some of these mental features are themselves Baldwin effects. Natural selection’s supporters, and its skeptics, appear to disregard the Baldwin effect for different reasons. The article proposes that acceptance of the Baldwin effect can significantly improve the study of human nature, as practiced by both sides in the nature-nurture controversy, and can even provide a bridge to end this controversy. (shrink)

In the general understanding, and also in scientific practice, technology and society are viewed as two distinct entities. Related to this view is the assumption that technology and human experience are quite different and unconnected and also the idea that modernity has uprooted, de-contextualized and disembodied technical rationality. Taking a contrary approach, this study represents a theoretical exploration aimed at showing that in the domain of technological development, there are significant margins for maneuver in which to recuperate and valorize human (...) and social action. As a work of theoretical sociology or social epistemology, this thesis approaches its subject from the theoretical background of the philosophy and sociology of technique. The historical and conventional assumptions of this theoretical background, it is argued, have been and continue to be characterized by a hegemonically defined essentialist paradigm. This paradigm has been fiercely counteracted by two opposed approaches, critical theory and pragmatism. The present work combines these approaches, usually considered mutually incompatible, for the development of a new theoretical gaze or perspective. The aim has been to engage in a theoretical research oriented to a new philosophy of praxis in order to instigate a critical and constructivist approach to technology. The main result expected of this work is the provision of a problematized and multifaceted semantic map leading to a multidimensional conceptual re-integration of skilled experience in human technical action. (shrink)