Coddon, Karin S. '"Unreal Mockery': Unreason and the Problem of Spectacle in Macbeth." ELH 56, No. 3 (Fall 1989): 485-501.

Examines the links between "treason, madness, and the supernatural" in Macbeth.

DePorte, Michael. "Madness and Masquerade." Georgia Review 44, No. 4 (Winter 1990): 636-50.

Offers a general treatment of the concept of feigned madness in literature and social history with a brief discussion of King Lear.

Driscoll, James P. Identity in Shakespearean Drama. East Brunswick, N.J.: Associated University Presses, 1983, 202 p.

Provides a detailed discussion of the psychology of Shakespeare's characterizations, including an analysis of the playwright's portrayal of madness.

Feder, Lillian. Madness in Literature. Princeton: Princeton University Press, 1980, 331 p.

Presents a detailed study of the theme of insanity in literature from that of Ancient Greece through the twentieth century. Includes discussion of Renaissance theories of madness and of Shakespeare's King Lear.

Jorgensen, Paul A. "Hamlet's Therapy." The Huntington Library Quarterly XXVII, No. 3 (May 1969): 239-58.

Uses Renaissance treatises on madness to argue that Hamlet achieves tragic wisdom and sanity by becoming his own "psychotherapist."

Kuin, Roger. "Feint/Frenzy: Madness and the Elizabethan Love-Sonnet." Criticism XXXI, No. 1 (Winter 1989): 1-20.

Analyzes the convention of the lover's madness in the Elizabethan sonnet tradition, paying particular attention to the origins of the sonnet in troubadour poetry.