Brain scans show that when people listen to songs, an area in the left hemisphere decodes speech-like sounds while one on the right processes musical information.
Scientists have found a way to transform electrical signals in the brain into intelligible speech. The advance may help people paralyzed by a stroke or disease, but the technology is experimental.
A killer whale attempting to say "hello" or "Amy" did not sound as clear as, say, a parrot. But scientists found that the whales could repeat human vocalizations with some success.
