This new and interesting book focuses on the hormones and neuroeconomics behind market trading and traders. It also has a good passage on the illusion of free will:
In fact our conscious brain has surprisingly little grasp of what makes us decide to do one thing rather than another. A telling example of this ignorance has been provided by Joe LeDoux and Michael Gazzaniga, two neuroscientists who conducted a study of patients with a severed corpus callosum, the bundle of nerve fibers connecting the two hemispheres of the brain, leaving the two sides of the brain unable to communicate with each other. LeDoux and Gazzaniga gave instructions to these patients, via their right hemisphere (hemispheres can be targeted with instructions shown to either the left or right visual field), to giggle or wave a hand, then asked them, via the left hemisphere, why they were laughing or waving. The patients’ left hemisphere had no knowledge of the instructions given to their right hemisphere, but the patients would nonetheless venture an explanation, saying that they were laughing because the doctors looked so funny or waving because they thought they saw a friend. However implausible the answer, the patients were convinced they knew why they were acting in the way they were; but they were deluded in thinking so. Their self-understanding was pure confabulation.
The author is John Coates and you can buy the book here.