ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
出典:『Wiktionary』 (2026/03/09 00:01 UTC 版)
selective mutism (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/13 07:53 UTC 版)
Selective mutism (SM) is an anxiety disorder in which a person, most often a child, who is normally capable of speech is unable to speak in given situations, or to specific people. Selective mutism often co-exists with shyness or (often severe) social anxiety.
Selective mutism