Nick Bostrom (director of the "Future of Humanity Institute", who also argues that it's likely that reality is a computer simulation) speculates about the possibilities of neural enhancements:

There was a talk at this conference on 'virtue engineering' by James Hughes of the Institute for Ethics and Emerging Technologies in Hartford, Connecticut. He spoke about the idea of using technology to enhance moral behaviour. A lot of people have trouble with impulse control, for example, and they might benefit from pharmaceutical help.

In the context of marriage, an interesting possibility is the use of pharmaceuticals to regulate the pair-bonding mechanism. There are a small number of hormones, such as vasopressin and oxytocin, that might help us form bonds with others. It could be possible to prevent the levels of these chemicals from trailing off, and to infuse romance into fading marriages -- like a technological form of counselling.

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