 James is also one of the rulers reported to have conducted a language deprivation experiment, sending two children to be raised by a mute woman alone on the island of Inchkeith, to determine if language was learned or innate.James was especially interested in surgery and medicine, and also other sciences which are now less creditable.At Stirling Castle, he established an alchemy workshop where alchemist John Damian looked for ways to turn base metals into gold.