Electrodes Stuck in the Brain Show How Thought Becomes Speech

A curious experiment has given scientists an unprecedented look into the human brain as it goes about a vital and everyday task: processing and speaking words. The study, published in Science, found that the brain carries out three steps of the task in about half a second, and that all the activity happens sequentially in the same small brain region, known as Broca's area. The researchers took advantage of a rare procedure