Recent findings in neuroscience have shown differential patterns in brain activity in response to similar stimuli and activities across cultural and social differences. This calls for a framework to understand how such differences may come to be implemented in brains and neurons. Based on strands of research in social anthropology, we argue that human practices are characterized by particular patterns, and that participating in these patterns orders how people perceive and act in particular group- and context-specific ways. This then leads to a particular patterning of neuronal processes that may be detected using e.g. brain imaging methods. We illustrate this through (a) a classical example of phoneme perception (b) recent work on performance in experimental game play. We then discuss these findings in the light of predictive models of brain function. We argue that a 'culture as patterned practices' approach obviates a rigid nature-culture distinction, avoids the problems involved in conceptualizing 'culture' as a homogenous grouping variable, and suggests that participating as a competent participant in particular practices may affect both the subjective (first person) experience and (third person) objective measures of behavior and brain activity.

To exploit advances in proteomics for drug discovery, high-throughout methods for target validation that directly address the cellular roles of proteins are required. To do this, we have characterized fluorophore-assisted light inactivation (FALI) which uses coherent or diffuse light targeted by fluorescein-labeled probes to inactivate specific proteins. We have shown that it is spatially restricted and tested its efficacy in living cells. FALI is efficient using conventional antibodies and single chain variable fragment phage display antibodies (that are compatible with high-throughput applications). We have shown that singlet oxygen is one of the major components required for FALI-mediated damage. The half-maximal radius of damage is approximately 40 A. FALI causes the specific loss of function of beta 1 integrin in HT-1080 fibrosarcoma cells resulting in a reduction in invasiveness. The efficacy of diffuse light sources (such as a desk lamp) with FALI to inactivate many samples in parallel provides an inexpensive, high-throughput method of wide general applicability for functional proteomics.

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This special issue of Science, Technology, & Human Values critically explores a new stage in which the life sciences and biomedical practices have entered. This new stage is marked by postgenomic developments and an increased interest of life sciences in the everyday lives of people outside laboratories and clinical settings. Furthermore, particular attention is given to many chronic and degenerative disorders such as cardiovascular disease, Alzheimer's disease, or developmental disorders. These developments coincide-or have become entangled-with a new set of interests that an anthropologically inclined science and technology studies (STS) is bringing to the analyses of biomedical practices. An increased interest is observed in the anthropologically inclined STS in studying phenomena on different

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