DNA as a Work of Art: Processes of Semiosis between Contemporary Art and Biology     

Marie Fulková  Teresa M. Tipton 《The International Journal of Art & Design Education》2013,32(1):83-96

When A Genomic Portrait – Sir John Sulston by Mark Quinn appeared in the London National Portrait Gallery's exhibition in 2001/2, the ensuing public controversy over its portrayal raised a number of questions about the representation of a publicly known figure. Because the portrait was the Gallery's first contemporary commission using specialised, scientific procedures in its creation, a number of issues arose surrounding its authenticity. How questions of authenticity are answered depends upon how the viewer reads aspects of scientific coding as it functions within the artistic domain. This is a form of visual literacy that depends on the viewer's ability to lift the veil that operates between coding systems and the context of their use. Literacy in this case is built upon the relationship between visual interpretation and ascribed systems of meaning within the context of their recontextualisations. By playing with the intersections between artistic and scientific discourses, the authors investigate how the representation of identity functions as a polysemy across different semiotic domains. Using visual semiotics to examine the intersections between sign systems across these domains, some of the communication aspects of how new modes of art function in present‐day communities are provoked. By illustrating the complexity of this process as a part of transforming expert knowing into pedagogical practice, support is given for improving teacher education in the arts and cultural domain.  相似文献   

Nonreinforced flavor exposure attenuates the effects of conditioned taste aversion on both flavor consumption and cue palatability     

Dominic Michael Dwyer  Patricia Gasalla  Matías López 《Learning & behavior》2013,41(4):390-401

Nonreinforced exposure to a cue tends to attenuate subsequent conditioning with that cue—an effect referred to as latent inhibition (LI). In the two experiments reported here, we examined LI effects in the context of conditioned taste aversion by examining both the amount of consumption and the microstructure of the consummatory behavior (in terms of the mean size of lick clusters). The latter measure can be taken to reflect affective responses to, or the palatability of, the solution being consumed. In both experiments, exposure to a to-be-conditioned flavor prior to pairing the flavor with nausea produced by lithium chloride attenuated both the reduction in consumption and the reduction in lick cluster sizes typically produced by taste aversion learning. In addition, we observed a tendency (especially in the lick cluster measure) for nonreinforced exposure to reduce neophobic responses to the test flavors. Taken together, these results reinforce the suggestion from previous experiments using taste reactivity methods that LI attenuates the effects of taste aversion on both consumption and cue palatability. The present results also support the suggestion that the failure in previous studies to see concurrent LI effects on consumption and palatability was due to a context specificity produced by the oral taste infusion methods required for taste reactivity analyses. Finally, the fact that the pattern of extinction of conditioned changes in consumption and in lick cluster sizes was not affected by preexposure to the cue flavors suggests that LI influenced the quantity but not the quality of conditioned taste aversion.  相似文献