Stephen Cave has a brief essay in The Financial Times, reviewing three new books addressing issues of free will. Here's a tidbit I wasn't aware of:
Two neuroscientists working in Australia have taken Libet’s discovery one step further. They found that, when asking people to choose to move either their left or right hands, it was possible to influence their choice by electronically stimulating certain parts of their brains. So, for example, the scientists could force the subjects always to choose to move their left hands. But despite their choice being electronically directed, these patients continued to report that they were freely choosing which hand to move.
Cave also writes:
Thanks to modern neuro-imaging technology, we now know that our minds - our conscious, mental life - are a product of activity in the brain.
Surely, we didn't learn this from neuroimaging. Cave more-or-less recognizes this further down:
None of this will come as a surprise to philosophers. Many have long suspected that humans are as subject to causal laws as the rest of nature. They just did not know how. As the Dutch philosopher Spinoza wrote in 1676, ”Men are deceived if they think themselves free, an opinion which consists only in this, that they are conscious of their actions and ignorant of the causes by which they are determined.”
(Hat tip: Leiter Reports)