The Element of Choice.

Scientists seem to have successfully identified the neurons responsible for decision-making within the human brain. Major, or minor breakthrough? Time will tell.

Depression vs. Deep Brain Stimulation.

The New York Times is running an article about recent attempts to use deep brain stimulation to treat certain forms of depression. The treatment shows promise, but is unproven. The mindhacks blog has links to several other articles on the subject.

Thanks to Katherine for this one.