"Epigenetics, for example, shows us that these same natural DNA structures find their expression by depending on cultural contexts, and that certain cultural factors, in turn, influence and arrange the 'natural' structure of DNA. The same disturbance in the line separating culture and nature emerges where we think of recent neuropsychological work on frontal lobe functioning. Frontal lobe neurons are not independent of any subjective or human functions, but rather exist only in accordance with these cultural functions:"
"the structures of these neurons are radically dependent on external, social priorities such as attention, watching for social cues, or mediating interpersonal relationships. If we remove these purely cultural contexts, we also simultaneously lose their natural (neuronal or biological) counterpart, where neurons are structured only insofar as they are applied to cultural requirements."
Nature is often defined as material reality independent of cultural interpretation, including biology, geology, and DNA. Epigenetics demonstrates that DNA expression depends on cultural contexts and that cultural factors can shape 'natural' genetic structures. Neuropsychological findings on frontal lobe functioning show that neuronal structures depend on social and cultural demands such as attention and social cue monitoring. Frontal lobe neurons exist and organize in accordance with cultural functions, linking biological organization directly to social priorities. Removing cultural contexts can diminish or alter the corresponding biological structures that were formed to meet those cultural requirements.
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