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When Was Selective Mutism Discovered?

David Miller • • 7 min read
When Was Selective Mutism Discovered?

Although a rare disorder lacking a definite etiology, selective mutism was first identified in the 19th century when Kussmaul

Kussmaul
Kussmaul's sign is a paradoxical rise in jugular venous pressure (JVP) on inspiration, or a failure in the appropriate fall of the JVP with inspiration. It can be seen in some forms of heart disease and is usually indicative of limited right ventricular filling due to right heart dysfunction.
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named it aphasia voluntaria in 1877 to describe the condition where individuals would voluntarily not speak in certain situations (Figure 1).

When was selective mutism added to the DSM?

Summary of DSM History

In 1980, when the DSM III (third edition) was published, it included “Elective Mutism” (now renamed Selective Mutism), and a more defined system for diagnosis.

Where does selective mutism come from?

Why does a child develop Selective Mutism? The majority of children with Selective Mutism have a genetic predisposition to anxiety. In other words, they have inherited a tendency to be anxious from one or more family members.

David Miller
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David Miller

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.