Boyd on Nabokov the Psychologist

From the 2011 Autumn issue of the American Scholar -- Boyd on Nabokov as a psychologist:
Vladimir Nabokov once dismissed as “preposterous” the French writer Alain Robbe-Grillet’s assertions that his novels eliminated psychology: “The shifts of levels, the interpenetration of successive impressions and so forth belong of course to psychology,” Nabokov said, “—psychology at its best.” Later asked, “Are you a psychological novelist?” Nabokov replied: “All novelists of any worth are psychological novelists.” 
(The rest here.)