relationship between the Fulton and Jacobsen presentation and the Portuguese neurologist's resolve to operate on the frontal lobes. As the author of this account Fulton, who has sometimes been claimed as the father of lobotomy, was later able to record that the technique had its true origination in his laboratory. Endorsing this version of events, in 1949, the Harvard neurologist Stanley Cobb remarked during his presidential address to the American Neurological Association that "seldom in the history of medicine has a laboratory observation been so quickly and dramatically translated into a therapeutic procedure". Fulton's report, penned ten years after the events described, is, however, without corroboration in the historical record and bears little resemblance to an earlier unpublished account he wrote of the congress. In this previous narrative he mentioned an incidental, private exchange with Moniz, but it is likely that the official version of their public conversation he promulgated is without foundation. In fact, Moniz stated that he had conceived of the operation some time before his journey to London in 1935, having told in confidence his junior colleague, the young neurosurgeon Pedro Almeida Lima, as early as 1933 of his psychosurgical idea. The traditional account exaggerates the importance of Fulton and Jacobsen to Moniz's decision to initiate frontal lobe surgery, and omits the fact that a detailed body of neurological research that emerged at this time suggested to Moniz and other neurologists and neurosurgeons that surgery on this part of the brain might yield significant personality changes in the mentally ill. The frontal lobes had been the object of scientific inquiry and speculation since the late 19th century. Fulton's contribution, while it may have functioned as source of intellectual support, is of itself unnecessary and inadequate as an explanation of Moniz's resolution to operate on this section of the brain. Under an evolutionary and hierarchical model of brain development it had been hypothesized that those regions associated with more recent development, such as the mammalian brain and, most especially, the frontal lobes, were responsible for more complex cognitive functions. However, this theoretical formulation found little laboratory support, as 19th-century experimentation found no significant change in animal behaviour following surgical removal or electrical stimulation of the frontal lobes. This picture of the so-called "silent lobe" changed in the period after World War I with the production of clinical reports of ex-servicemen with brain trauma. The refinement of neurosurgical techniques