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BioSocieties

, Volume 4, Issue 4, pp 407–424 | Cite as

Changing Brains: The Emergence of the Field of Adult Neurogenesis

  • Beatrix P Rubin
Article

Abstract

The increasing appreciation of structural plasticity, namely the capacity of the nervous system to alter not only its function but also its constitution in response to changing conditions, indicates a profound transformation in the scientific comprehension of the human brain. The research on adult neurogenesis, i.e. on the de novo formation of neurons in the mature brain, has been chosen as a circumscribed field to study the controversies that accompany the transition from the concept of a stable to that of a structurally plastic mammalian brain. Building on the concepts of thought style and thought collective developed by Ludwik Fleck, this article investigates the ways in which neurogenesis in the adult brain has changed from being negated to being accepted and highly valued, and consequently has become the focus of a novel research field. This analysis covers a period from the second half of the twentieth century up to the present. The development of research on adult neurogenesis has been shaped by two opposing views: the understanding of a particularly immutable and thus specifically human brain on the one hand, and a plastic brain which remains malleable during the entire adult life, on the other hand. This plastic human brain has created new space for the articulation of the ‘therapeutic promise’, since it lends itself much more readily to therapeutic intervention than a stable brain: the article argues this to be decisive in promoting the transformation of thought style within the neurosciences.

Keywords

Adult Neurogenesis Human Brain Neural Stem Cells Plasticity Thought Collective Thought Style 

Notes

Acknowledgements

I would like to thank Emily Martin and Tobias Rees, as well as the members of the European Neuroscience and Society ‘mirror workshop’, ‘Our Brains, Ourselves’, at the University of Aarhus, for encouraging discussions on the subject of adult neurogenesis and plasticity in the neurosciences. I am grateful to Sabine Maasen, Emily Martin and Martin Reinhart for helpful comments on the manuscript.

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Copyright information

© London School of Economics and Political Science 2009

Authors and Affiliations

  • Beatrix P Rubin
    • 1
  1. 1.Collegium Helveticum, Semper-SternwarteZürichSwitzerland

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