Psychological /
  Medical

Barker, Deborah E. and Ivo Kamps. "Much Ado About Nothing: Language and Desire in The Sound and the Fury," 1993.

Jensen, Graham. "‘Something Terrible in Me’: A Note on Demon-Possession and Suicide in Faulkner’s The Sound and the Fury," 2009.

McLaughlin, Sara. "Faulkner's Faux Pas: Referring to Benjamin Compson as an Idiot," 1987.

Storhoff, Gary. "Faulkner's Family Crucible: Quentin's Dilemma." Mississippi Quarterly. 51:3-4, 465-482, 1998.

Tilley, Winthrop. "The Idiot Boy in Mississippi: Faulkner's The Sound and the Fury," 19--.