Stereotypically, people with a lisp are unable to pronounce sibilants (like the sound ]), and replace them with interdentals (like the sound ]), though there are actually several kinds of lisp. BackgroundĪ lisp ( O E wlisp, stammering) is a speech impediment, historically also known as sigmatism. Risk calculators and risk factors for LispĮditor-In-Chief: C. US National Guidelines Clearinghouse on Lisp
Articles on Lisp in N Eng J Med, Lancet, BMJ
