Speech & Language Therapy Information

Your Trusted Source for Speech Therapy Information!

Best quality information about speech, language and communication needs. 

Comprehensive information on all aspects of human communication and speech therapy, including speech, language, voice, stuttering and much more.....

Latest additions...

Vowel Harmony

vowel harmony

VOWEL HARMONY Definition: Replacing the unstressed vowel in a multisyllabic word with the vowel that receives the primary stress. Comment:  Vowel harmony affects unstressed vowels. They are assimilated to the vowel within the syllable that receives the primary stress so that both vowels are the same – they harmonize. Harmony can spread from left-to-right (progressive) or from right-to-left (regressive). Examples: […]

Read more ...



Assimilatory processes Assimilation is said to have taken place when one speech segment is transformed into another owing to the influence of a neighboring segment. In the majority of cases the segments are individual speech sounds but there are instances where a whole syllable will influence a neighboring syllable. There are also instances where the neighboring segment is, in […]

Read more ...



LABIALIZATION Definition: Replacing tongue tip consonants with labial consonants. Comment: Labialization occurs when a tongue tip consonant /t d n s z θ ð/ is substituted by a labial consonant /p b m w f v/ made at the same place of articulation.   NB: Substitution of the liquid /l/ is excluded from this definition (because substitution by /w/ would be […]

Read more ...


8B Gliding

GLIDING Definition: Replacing a continuant (especially a liquid) with a glide. Comment: In principle, gliding occurs when any continuant is replaced with a glide /w j/. However, a particular and common instance of gliding is gliding of liquids. In this process it is just the liquids /r l/ that are replaced with a glide /w j/.   Gliding is […]

Read more ...


7B Frication

  FRICATION Definition: Replacing an approximant with a fricative. Comment: Frication occurs whenever an approximant consonant (a glide /w j/ or a liquid /r l/) is substituted by a fricative consonant /f v θ ð s z ʃ ʒ h/. Examples: you /ju/ → /zu/ red /rɛd/ → /ðɛd/   Recall that there are four approximants in English (two […]

Read more ...