The function of the glottis is to make several voicing sounds between the vocal folds when they vibrate. Voiceless consonants include the English h, f, s, p, t and k sounds. The glottis functions... The function of the glottis is to make several voicing sounds between the vocal folds when they vibrate. Voiceless consonants include the English h, f, s, p, t and k sounds.
Misophonia sufferers find these sounds more than just mildly annoying. Beginning in late childhood or early adolescence, the condition causes extreme anger, anxiety and terror when a trigger sound, such as chewing gum, is heard.
Possible reasons for destructive chewing include: 1  As a puppy, they weren't taught what to chew and what not to chew. 2  They're bored. 3  They suffer from separation anxiety. 4  Their behavior is fear-related. 5  They want attention.