المستخلص: |
Current research has targeted the theoretical rooting of the term optional silence in terms of concept, its onset, types of optional silence, interpreted theories, prevalence ratios, diagnostic tests of optional silence and its symptoms. The term optional silence under the title of selective silence in the DSM Diagnostic and Statistical Manual of Mental Disorders began circulating until 1980 (DSM-III), and the main feature was the constant refusal to speak in all cases, including the school, despite having the ability to speak and understand the language. The DSM-III-R modified diagnostic and statistical manual for mental disorders was then changed in 1987 to the diagnostic advantage of optional silence to become the constant refusal to speak in most situations, not all situations. In the year of DSM-IVIN in 2000, the term selective silence was replaced into optional silence to move the diagnostic standard from constant refusal to speak to persistent failure to speak; This is because they react with anxiety to their environment, so the optional silence in DSM-5 has been classified as anxiety disorders.
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