DISCUSSION: Dr. Bertram Lewin noted that the cases were a predominantly hypomanic group, demonstrated here for the first time in an appreciable series. The first reported case of blank hallucination (by Dr. C. F. Rycroft) proved, on inquiry, to have demonstrated a 'hypomanic defense'. Several of Lewin's own cases showed a transient subsequent hypomania. Dr. Isakower and he described phenomena relating not only to falling asleep and sleep itself, but to other states as well. Dr. Isakower had specifically mentioned febrile states. He believed it was correct to label some of the described responses as denials and negations, but was inclined to include these under the more inclusive formulation of elaboration,