Two sets of twins with selective mutism: Neuropsychological findings

Robert M. Gray, Catherine M Jordan, Richard S Ziegler, Ronald B. Livingston

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Neuropsychological data are reviewed from two sets of dizygotic twins presenting with selective mutism characterized by situation specific anxiety, extreme passive behavior, lack of responsivity, lack of peer interaction, and a chronic course of selective mutism. Both sets of twins had a history of prematurity and delayed speech development. One set of twins presented with normal intelligence and normal receptive language skills but with expressive language and oral motor sequencing difficulties. The second set of twins presented with Verbal IQ deficits and significant receptive and expressive language deficits. A summary of current conceptualizations regarding etiology and treatment of selective mutism is provided.

Original languageEnglish (US)
Pages (from-to)41-51
Number of pages11
JournalChild Neuropsychology
Issue number1
StatePublished - Mar 2002


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