 They called their operation, where burr holes are drilled in the side of the skull and the white matter is sliced through in order to sever the connections between the frontal lobes and deeper structures in the brain, lobotomy.In the United Kingdom it became known as the standard Freeman-Watts prefrontal leucotomy.British psychiatrist William Sargant met Freeman on a visit to the United States and on his return to England encouraged doctors at the Burden Neurological Institute in Bristol to instigate a programme of psychosurgery.