Table 2.

Speech Examination Findings Expected for Probable Spasmodic Dysphonia

Task	Required for Spasmodic Dysphonia	Hyperfunctional Voice
Repeating Adductor sentences (glottal stops and vowels)	Adductor type: Breaks on vowels, 1 or more breaks per 3 sentences	Equal voice symptoms on vowels and voiceless consonants
Repeated Abductor sentences (/p/, /t/, /k/, /s/, /h/, /f/)	Abductor type: prolonged voiceless consonants, 1 or more breaks per 3 sentences	Equal voice symptoms on vowels and voiceless consonants
Greater difficulty with one set of sentences	One set is more difficult than another	Both sets are equally affected, does not find one type of sentences more difficult
Shout	Normal	Affected same as speech
Strained choked voice	Less strain at a higher pitch	Consistent for all types of speech sounds and pitches
Prolonged vowel	May have tremor on prolonged vowels, prolonged vowels are less affected than speech	Prolonged vowels are similarly affected to speech, no tremor
Counting from 1 to 10	Breaks on vowels or prolonged voiceless consonants	No voice breaks